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class="vector-toc-list"> </ul> </li> <li id="toc-CQFP_packages" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#CQFP_packages"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.2</span> <span>CQFP packages</span> </div> </a> <ul id="toc-CQFP_packages-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-See_also" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#See_also"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>See also</span> </div> </a> <ul id="toc-See_also-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-References" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#References"> <div class="vector-toc-text"> <span class="vector-toc-numb">5</span> <span>References</span> </div> </a> <ul id="toc-References-sublist" class="vector-toc-list"> </ul> </li> <li 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for="vector-page-titlebar-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-listBullet mw-ui-icon-wikimedia-listBullet"></span> <span class="vector-dropdown-label-text">Toggle the table of contents</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-titlebar-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Quad flat package</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Go to an article in another language. Available in 16 languages" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-16" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">16 languages</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Quad_Flat_Package" title="Quad Flat Package – Catalan" lang="ca" hreflang="ca" data-title="Quad Flat Package" data-language-autonym="Català" data-language-local-name="Catalan" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Quad_Flat_Package" title="Quad Flat Package – German" lang="de" hreflang="de" data-title="Quad Flat Package" data-language-autonym="Deutsch" data-language-local-name="German" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Quad_Flat_Package" title="Quad Flat Package – Spanish" lang="es" hreflang="es" data-title="Quad Flat Package" data-language-autonym="Español" data-language-local-name="Spanish" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://eu.wikipedia.org/wiki/QFP" title="QFP – Basque" lang="eu" hreflang="eu" data-title="QFP" data-language-autonym="Euskara" data-language-local-name="Basque" class="interlanguage-link-target"><span>Euskara</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D8%A8%D8%B3%D8%AA%D9%87_%D8%AA%D8%AE%D8%AA_%DA%86%D9%87%D8%A7%D8%B1%D8%B7%D8%B1%D9%81%D9%87" title="بسته تخت چهارطرفه – Persian" lang="fa" hreflang="fa" data-title="بسته تخت چهارطرفه" data-language-autonym="فارسی" data-language-local-name="Persian" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Quad_Flat_Package" title="Quad Flat Package – French" lang="fr" hreflang="fr" data-title="Quad Flat Package" data-language-autonym="Français" data-language-local-name="French" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/QFP" title="QFP – Korean" lang="ko" hreflang="ko" data-title="QFP" data-language-autonym="한국어" data-language-local-name="Korean" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Kemasan_datar_segi_empat" title="Kemasan datar segi empat – Indonesian" lang="id" hreflang="id" data-title="Kemasan datar segi empat" data-language-autonym="Bahasa Indonesia" data-language-local-name="Indonesian" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/QFP" title="QFP – Italian" lang="it" hreflang="it" data-title="QFP" data-language-autonym="Italiano" data-language-local-name="Italian" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Quad_flat_package" title="Quad flat package – Dutch" lang="nl" hreflang="nl" data-title="Quad flat package" data-language-autonym="Nederlands" data-language-local-name="Dutch" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/QFP" title="QFP – Japanese" lang="ja" hreflang="ja" data-title="QFP" data-language-autonym="日本語" data-language-local-name="Japanese" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Quad_Flat_Package" title="Quad Flat Package – Portuguese" lang="pt" hreflang="pt" data-title="Quad Flat Package" data-language-autonym="Português" data-language-local-name="Portuguese" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/QFP" title="QFP – Russian" lang="ru" hreflang="ru" data-title="QFP" data-language-autonym="Русский" data-language-local-name="Russian" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/Quad_Flat_Pack" title="Quad Flat Pack – Swedish" lang="sv" hreflang="sv" data-title="Quad Flat Pack" data-language-autonym="Svenska" data-language-local-name="Swedish" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/QFP" title="QFP – Ukrainian" lang="uk" hreflang="uk" data-title="QFP" data-language-autonym="Українська" data-language-local-name="Ukrainian" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E5%A1%91%E6%96%99%E6%96%B9%E5%BD%A2%E6%89%81%E5%B9%B3%E5%B0%81%E8%A3%9D" title="塑料方形扁平封裝 – Chinese" lang="zh" hreflang="zh" data-title="塑料方形扁平封裝" data-language-autonym="中文" data-language-local-name="Chinese" class="interlanguage-link-target"><span>中文</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span 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dir="ltr"><div class="shortdescription nomobile noexcerpt noprint searchaux" style="display:none">Surface mount integrated circuit package with "gull wing" pins extending from all sides</div> <style data-mw-deduplicate="TemplateStyles:r1236090951">.mw-parser-output .hatnote{font-style:italic}.mw-parser-output div.hatnote{padding-left:1.6em;margin-bottom:0.5em}.mw-parser-output .hatnote i{font-style:normal}.mw-parser-output .hatnote+link+.hatnote{margin-top:-0.5em}@media print{body.ns-0 .mw-parser-output .hatnote{display:none!important}}</style><div role="note" class="hatnote navigation-not-searchable">"QFP" redirects here. For the digital logic technology, see <a href="/wiki/Quantum_flux_parametron" title="Quantum flux parametron">Quantum flux parametron</a>.</div> <style data-mw-deduplicate="TemplateStyles:r1251242444">.mw-parser-output .ambox{border:1px solid #a2a9b1;border-left:10px solid #36c;background-color:#fbfbfb;box-sizing:border-box}.mw-parser-output .ambox+link+.ambox,.mw-parser-output .ambox+link+style+.ambox,.mw-parser-output .ambox+link+link+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+style+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+link+.ambox{margin-top:-1px}html body.mediawiki .mw-parser-output .ambox.mbox-small-left{margin:4px 1em 4px 0;overflow:hidden;width:238px;border-collapse:collapse;font-size:88%;line-height:1.25em}.mw-parser-output .ambox-speedy{border-left:10px solid #b32424;background-color:#fee7e6}.mw-parser-output .ambox-delete{border-left:10px solid #b32424}.mw-parser-output .ambox-content{border-left:10px solid #f28500}.mw-parser-output .ambox-style{border-left:10px solid #fc3}.mw-parser-output .ambox-move{border-left:10px solid #9932cc}.mw-parser-output .ambox-protection{border-left:10px solid #a2a9b1}.mw-parser-output .ambox .mbox-text{border:none;padding:0.25em 0.5em;width:100%}.mw-parser-output .ambox .mbox-image{border:none;padding:2px 0 2px 0.5em;text-align:center}.mw-parser-output .ambox .mbox-imageright{border:none;padding:2px 0.5em 2px 0;text-align:center}.mw-parser-output .ambox .mbox-empty-cell{border:none;padding:0;width:1px}.mw-parser-output .ambox .mbox-image-div{width:52px}@media(min-width:720px){.mw-parser-output .ambox{margin:0 10%}}@media print{body.ns-0 .mw-parser-output .ambox{display:none!important}}</style><table class="box-More_citations_needed plainlinks metadata ambox ambox-content ambox-Refimprove" role="presentation"><tbody><tr><td class="mbox-image"><div class="mbox-image-div"><span typeof="mw:File"><a href="/wiki/File:Question_book-new.svg" class="mw-file-description"><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/9/99/Question_book-new.svg/50px-Question_book-new.svg.png" decoding="async" width="50" height="39" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/9/99/Question_book-new.svg/75px-Question_book-new.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/9/99/Question_book-new.svg/100px-Question_book-new.svg.png 2x" data-file-width="512" data-file-height="399" /></a></span></div></td><td class="mbox-text"><div class="mbox-text-span">This article <b>needs additional citations for <a href="/wiki/Wikipedia:Verifiability" title="Wikipedia:Verifiability">verification</a></b>.<span class="hide-when-compact"> Please help <a href="/wiki/Special:EditPage/Quad_flat_package" title="Special:EditPage/Quad flat package">improve this article</a> by <a href="/wiki/Help:Referencing_for_beginners" title="Help:Referencing for beginners">adding citations to reliable sources</a>. Unsourced material may be challenged and removed.<br /><small><span class="plainlinks"><i>Find sources:</i> <a rel="nofollow" class="external text" href="https://www.google.com/search?as_eq=wikipedia&q=%22Quad+flat+package%22">"Quad flat package"</a> – <a rel="nofollow" class="external text" href="https://www.google.com/search?tbm=nws&q=%22Quad+flat+package%22+-wikipedia&tbs=ar:1">news</a> <b>·</b> <a rel="nofollow" class="external text" href="https://www.google.com/search?&q=%22Quad+flat+package%22&tbs=bkt:s&tbm=bks">newspapers</a> <b>·</b> <a rel="nofollow" class="external text" href="https://www.google.com/search?tbs=bks:1&q=%22Quad+flat+package%22+-wikipedia">books</a> <b>·</b> <a rel="nofollow" class="external text" href="https://scholar.google.com/scholar?q=%22Quad+flat+package%22">scholar</a> <b>·</b> <a rel="nofollow" class="external text" href="https://www.jstor.org/action/doBasicSearch?Query=%22Quad+flat+package%22&acc=on&wc=on">JSTOR</a></span></small></span> <span class="date-container"><i>(<span class="date">December 2011</span>)</i></span><span class="hide-when-compact"><i> (<small><a href="/wiki/Help:Maintenance_template_removal" title="Help:Maintenance template removal">Learn how and when to remove this message</a></small>)</i></span></div></td></tr></tbody></table> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Z84C0010FEC_LQFP.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/4/40/Z84C0010FEC_LQFP.png" decoding="async" width="149" height="148" class="mw-file-element" data-file-width="149" data-file-height="148" /></a><figcaption>A <a href="/wiki/Zilog_Z80" title="Zilog Z80">Zilog Z80</a> in a 44-pin QFP (special case: <a href="/wiki/LQFP" class="mw-redirect" title="LQFP">LQFP</a>)</figcaption></figure> <p>A <b>quad flat package</b> (<b>QFP</b>) is a <a href="/wiki/Surface-mount_technology" title="Surface-mount technology">surface-mounted</a> <a href="/wiki/Integrated_circuit" title="Integrated circuit">integrated circuit</a> <a href="/wiki/Integrated_circuit_packaging" title="Integrated circuit packaging">package</a> with "gull wing" leads extending from each of the four sides.<sup id="cite_ref-Greig07_1-0" class="reference"><a href="#cite_note-Greig07-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> Socketing such packages is rare and through-hole mounting is not possible. Versions ranging from 32 to 304 pins with a <a href="/wiki/Pin_pitch" class="mw-redirect" title="Pin pitch">pitch</a> ranging from 0.4 to 1.0 mm are common. Other special variants include low-profile QFP (LQFP) and thin QFP (TQFP).<sup id="cite_ref-Cohn05_2-0" class="reference"><a href="#cite_note-Cohn05-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> </p><p>The QFP component package type became common in <a href="/wiki/Europe" title="Europe">Europe</a> and <a href="/wiki/United_States" title="United States">United States</a> during the early nineties, even though it has been used in <a href="/wiki/Japan" title="Japan">Japanese</a> <a href="/wiki/Consumer_electronics" title="Consumer electronics">consumer electronics</a> since the seventies. It is often mixed with <a href="/wiki/Through-hole" class="mw-redirect" title="Through-hole">hole mounted</a>, and sometimes <a href="/wiki/DIP_socket" class="mw-redirect" title="DIP socket">socketed</a>, components on the same <a href="/wiki/Printed_circuit_board" title="Printed circuit board">printed circuit board</a> (PCB). </p><p>A package related to QFP is <a href="/wiki/Plastic_leaded_chip_carrier" class="mw-redirect" title="Plastic leaded chip carrier">plastic leaded chip carrier</a> (PLCC) which is similar but has pins with larger pitch, 1.27 mm (or 1/20 inch), curved up underneath a thicker body to simplify socketing (soldering is also possible). It is commonly used for <a href="/wiki/NOR_flash_memory" class="mw-redirect" title="NOR flash memory">NOR flash memories</a> and other programmable components. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Limitations">Limitations</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Quad_flat_package&action=edit&section=1" title="Edit section: Limitations"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The quad flat-pack has connections only around the periphery of the package. To increase the number of pins, the spacing was decreased from 50 mil (as found on <a href="/wiki/Small_outline_package" class="mw-redirect" title="Small outline package">small outline packages</a>) to 20 and later 12 (1.27 mm, 0.51 mm and 0.30 mm respectively). However, this close lead spacing made <a href="/wiki/Solder_bridge" class="mw-redirect" title="Solder bridge">solder bridges</a> more likely and put higher demands on the soldering process and alignment of parts during assembly.<sup id="cite_ref-Greig07_1-1" class="reference"><a href="#cite_note-Greig07-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> The later <a href="/wiki/Pin_grid_array" title="Pin grid array">pin grid array</a> (PGA) and <a href="/wiki/Ball_grid_array" title="Ball grid array">ball grid array</a> (BGA) packages, by allowing connections to be made over the area of the package and not just around the edges, allowed for higher pin counts with similar package sizes, and reduced the problems with close lead spacing. </p> <div class="mw-heading mw-heading2"><h2 id="Variants"><span class="anchor" id="LQFP"></span><span class="anchor" id="TQFP"></span><span class="anchor" id="BQFP"></span><span class="anchor" id="PQFP"></span>Variants</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Quad_flat_package&action=edit&section=2" title="Edit section: Variants"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul class="gallery mw-gallery-traditional"> <li class="gallerybox" style="width: 235px"> <div class="thumb" style="width: 230px; height: 190px;"><span typeof="mw:File"><a href="/wiki/File:Cyrix_cx9210_gfdl_(cropped).jpg" class="mw-file-description" title="144-pin low profile quad flat package (LQFP)"><img alt="144-pin low profile quad flat package (LQFP)" src="//upload.wikimedia.org/wikipedia/commons/thumb/b/b0/Cyrix_cx9210_gfdl_%28cropped%29.jpg/200px-Cyrix_cx9210_gfdl_%28cropped%29.jpg" decoding="async" width="200" height="143" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/b0/Cyrix_cx9210_gfdl_%28cropped%29.jpg/300px-Cyrix_cx9210_gfdl_%28cropped%29.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/b/b0/Cyrix_cx9210_gfdl_%28cropped%29.jpg/400px-Cyrix_cx9210_gfdl_%28cropped%29.jpg 2x" data-file-width="1120" data-file-height="800" /></a></span></div> <div class="gallerytext">144-pin low profile quad flat package (LQFP)</div> </li> <li class="gallerybox" style="width: 235px"> <div class="thumb" style="width: 230px; height: 190px;"><span typeof="mw:File"><a href="/wiki/File:PIC18F8720.jpg" class="mw-file-description" title="80-pin thin quad flat package (TQFP) – PIC microcontroller"><img alt="80-pin thin quad flat package (TQFP) – PIC microcontroller" src="//upload.wikimedia.org/wikipedia/commons/thumb/1/18/PIC18F8720.jpg/160px-PIC18F8720.jpg" decoding="async" width="160" height="160" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/1/18/PIC18F8720.jpg/240px-PIC18F8720.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/1/18/PIC18F8720.jpg/320px-PIC18F8720.jpg 2x" data-file-width="425" data-file-height="425" /></a></span></div> <div class="gallerytext">80-pin thin quad flat package (TQFP) – <a href="/wiki/PIC_microcontroller" class="mw-redirect" title="PIC microcontroller">PIC microcontroller</a></div> </li> <li class="gallerybox" style="width: 235px"> <div class="thumb" style="width: 230px; height: 190px;"><span typeof="mw:File"><a href="/wiki/File:Sega_304-pin_QFP.jpg" class="mw-file-description" title="304-pin plastic quad flat package (QFP) with exposed thermal pad (TP)"><img alt="304-pin plastic quad flat package (QFP) with exposed thermal pad (TP)" src="//upload.wikimedia.org/wikipedia/commons/thumb/a/ac/Sega_304-pin_QFP.jpg/165px-Sega_304-pin_QFP.jpg" decoding="async" width="165" height="160" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/a/ac/Sega_304-pin_QFP.jpg/247px-Sega_304-pin_QFP.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/a/ac/Sega_304-pin_QFP.jpg/329px-Sega_304-pin_QFP.jpg 2x" data-file-width="705" data-file-height="685" /></a></span></div> <div class="gallerytext">304-pin plastic quad flat package (QFP) with exposed <a href="/wiki/Thermally_conductive_pad" title="Thermally conductive pad">thermal pad</a> (TP)</div> </li> <li class="gallerybox" style="width: 235px"> <div class="thumb" style="width: 230px; height: 190px;"><span typeof="mw:File"><a href="/wiki/File:Cyrix_Cx486SLCe-V25MP_DF7339E_top.jpg" class="mw-file-description" title="100-pin bumpered quad flat package (BQFP) – Cyrix Cx486SLC"><img alt="100-pin bumpered quad flat package (BQFP) – Cyrix Cx486SLC" src="//upload.wikimedia.org/wikipedia/commons/thumb/6/67/Cyrix_Cx486SLCe-V25MP_DF7339E_top.jpg/160px-Cyrix_Cx486SLCe-V25MP_DF7339E_top.jpg" decoding="async" width="160" height="160" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/6/67/Cyrix_Cx486SLCe-V25MP_DF7339E_top.jpg/240px-Cyrix_Cx486SLCe-V25MP_DF7339E_top.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/6/67/Cyrix_Cx486SLCe-V25MP_DF7339E_top.jpg/320px-Cyrix_Cx486SLCe-V25MP_DF7339E_top.jpg 2x" data-file-width="384" data-file-height="384" /></a></span></div> <div class="gallerytext">100-pin bumpered quad flat package (BQFP) – <a href="/wiki/Cyrix_Cx486SLC" title="Cyrix Cx486SLC">Cyrix Cx486SLC</a></div> </li> <li class="gallerybox" style="width: 235px"> <div class="thumb" style="width: 230px; height: 190px;"><span typeof="mw:File"><a href="/wiki/File:CRQFP80_UV_ST62E40.jpg" class="mw-file-description" title="80-pin ceramic quad flat package (TQFP) – ST6 microcontroller"><img alt="80-pin ceramic quad flat package (TQFP) – ST6 microcontroller" src="//upload.wikimedia.org/wikipedia/commons/thumb/f/f2/CRQFP80_UV_ST62E40.jpg/120px-CRQFP80_UV_ST62E40.jpg" decoding="async" width="120" height="160" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/f2/CRQFP80_UV_ST62E40.jpg/180px-CRQFP80_UV_ST62E40.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/f2/CRQFP80_UV_ST62E40.jpg/240px-CRQFP80_UV_ST62E40.jpg 2x" data-file-width="600" data-file-height="800" /></a></span></div> <div class="gallerytext">80-pin ceramic quad flat package (TQFP) – <a href="/wiki/ST6_and_ST7" title="ST6 and ST7">ST6 microcontroller</a></div> </li> </ul> <p>The basic form is a flat rectangular (often square) body with leads on four sides but with numerous variation in the design. These differ usually only in lead number, pitch, dimensions, and materials used (usually to improve thermal characteristics). A clear variation is <b>bumpered quad flat package</b> (<b>BQFP</b>) with extensions at the four corners to protect the leads against mechanical damage before the unit is soldered. </p><p>Heat sink quad flat package, <i>heatsink very thin quad flat-pack no-leads</i> (<i><a href="/wiki/Quad_Flat_No-leads_package" class="mw-redirect" title="Quad Flat No-leads package">HVQFN</a></i>) is a package with no component leads extending from the IC. Pads are spaced along the sides of the IC with an exposed die that can be used as ground. <a href="/wiki/Pin_pitch" class="mw-redirect" title="Pin pitch">Spacing</a> between pins can vary. </p><p>A <b>thin quad flat pack</b> (<b>TQFP</b>) provides the same benefits as the metric QFP, but is thinner. Regular QFP are 2.0 to 3.8 mm thick depending on size. TQFP packages range from 32 pins with a 0.8 mm lead pitch, in a package 5 mm by 5 mm by 1 mm thick, to 256 pins, 28 mm square, 1.4 mm thick and a lead pitch of 0.4 mm.<sup id="cite_ref-Cohn05_2-1" class="reference"><a href="#cite_note-Cohn05-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> </p><p>TQFPs help solve issues such as increasing board density, die shrink programs, thin end-product profile and portability. Lead counts range from 32 to 176. Body sizes range from <span class="nowrap">5 mm × 5 mm</span> to <span class="nowrap">20 × 20 mm</span>. Copper lead-frames are used in TQFPs. Lead pitches available for TQFPs are 0.4 mm, 0.5 mm, 0.65 mm, 0.8 mm, and 1.0 mm. <i>PQFP</i>, or <b>plastic quad flat pack</b>, is a type of QFP, as is the thinner TQFP package. PQFP packages can vary in thickness from 2.0 mm to 3.8 mm. A <b>low-profile quad flat package</b> (<b>LQFP</b>) is a <a href="/wiki/Surface_mount" class="mw-redirect" title="Surface mount">surface mount</a> <a href="/wiki/Integrated_circuit" title="Integrated circuit">integrated circuit</a> package format with component leads extending from each of the four sides. Pins are numbered counter-clockwise from the index dot. <a href="/wiki/Pin_pitch" class="mw-redirect" title="Pin pitch">Spacing</a> between pins can vary; common spacings are 0.4, 0.5, 0.65 and 0.80 mm intervals. </p> <table class="wikitable"> <caption>Other quad flat package types </caption> <tbody><tr> <th>Package</th> <th>description </th></tr> <tr> <td>BQFP</td> <td>bumpered quad flat package </td></tr> <tr> <td>BQFPH</td> <td>bumpered quad flat package with <a href="/wiki/Heat_spreader" title="Heat spreader">heat spreader</a> </td></tr> <tr> <td>CQFP</td> <td>ceramic quad flat package </td></tr> <tr> <td>EQFP</td> <td>plastic enhanced quad flat package </td></tr> <tr> <td>FQFP</td> <td>fine pitch quad flat package </td></tr> <tr> <td>LQFP</td> <td>low profile quad flat package </td></tr> <tr> <td>MQFP</td> <td>metric quad flat package </td></tr> <tr> <td>NQFP</td> <td>near chip-scale quad flat package.<sup id="cite_ref-nqfp_3-0" class="reference"><a href="#cite_note-nqfp-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td>SQFP</td> <td>small quad flat package </td></tr> <tr> <td>TQFP</td> <td>thin quad flat package </td></tr> <tr> <td>VQFP</td> <td>very small quad flat package </td></tr> <tr> <td>VTQFP</td> <td>very thin quad flat package </td></tr> <tr> <td>TDFN</td> <td>thin dual flat no-lead package.<sup id="cite_ref-TDFN_4-0" class="reference"><a href="#cite_note-TDFN-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> </td></tr></tbody></table> <p>Some QFP packages have an <a href="/w/index.php?title=Exposed_pad&action=edit&redlink=1" class="new" title="Exposed pad (page does not exist)">exposed pad</a>. The exposed pad is an extra pad underneath or on top of the QFP that may act as a ground connection and/or as a heat sink for the package. The pad is typically 10 or more mm<sup>2</sup>, and with the pad soldered down onto the ground plane, heat is passed into the PCB. This exposed pad also gives a solid ground connection. These type of QFP packages often have a <b>-EP</b> suffix (e.g. a LQFP-EP 64), or they have an odd number of leads, (e.g. a TQFP-101). </p> <div class="mw-heading mw-heading2"><h2 id="Ceramic_QFP_package"><span class="anchor" id="CERQUAD"></span><span class="anchor" id="CQFP"></span>Ceramic QFP package</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Quad_flat_package&action=edit&section=3" title="Edit section: Ceramic QFP package"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Ceramic QFP packages come in two variants, CERQUAD and CQFP: </p> <div class="mw-heading mw-heading3"><h3 id="CERQUAD_packages">CERQUAD packages</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Quad_flat_package&action=edit&section=4" title="Edit section: CERQUAD packages"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Hereby the leadframe is attached between two ceramic layers of the package. The leadframe is attached using glass. This package is a variant of the CERDIP package. CERQUAD packages are the "low cost" alternative for CQFP packages, and are mainly used for terrestrial applications. Main ceramic package manufacturers are Kyocera, NTK,... and offer the full pincount range </p> <div class="mw-heading mw-heading3"><h3 id="CQFP_packages">CQFP packages</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Quad_flat_package&action=edit&section=5" title="Edit section: CQFP packages"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Hereby the leads are soldered on top of the package. The package is a multilayer package, and is offered as HTCC (high temperature co-fired ceramic). The number of bonding decks can be one, two or three. Package is finished with a nickel plus a <i>thick</i> gold layer, except where the leads are soldered and decoupling capacitors are soldered on top of the package. These packages are hermetic. Two methods are used in order to make the hermetic sealing: eutectic gold-tin alloy (melting point 280<span class="nowrap"> </span>°C) or seam welding. Seam welding gives rise to significantly less temperature rise in the internal of the package (e.g., the die attach). This package is the main package used for Space projects. </p><p>Due to the large body size of CQFP packages, parasitics are important for this package. Power supply decoupling is improved by having the decoupling capacitors mounted on top of this package. E.g. TI offers 256-pin CQFP packages where decoupling capacitors can be soldered on top of the package<sup id="cite_ref-TI_5-0" class="reference"><a href="#cite_note-TI-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> E.g. Test-expert 256-pin CQFP packages where decoupling capacitors can be soldered on top of the package.<sup id="cite_ref-CQFP_6-0" class="reference"><a href="#cite_note-CQFP-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> </p><p>The main ceramic package manufacturers are Kyocera (Japan), NTK (Japan), Test-Expert (Russia), etc. and offer the full pincount range. Maximum pin count is 352 pins. </p> <div class="mw-heading mw-heading2"><h2 id="See_also">See also</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Quad_flat_package&action=edit&section=6" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Chip_carrier" title="Chip carrier">Chip carrier</a></li> <li><a href="/wiki/Pin_grid_array" title="Pin grid array">Pin grid array</a> - an alternative integrated circuit pin arrangement design</li> <li><a href="/wiki/Dual_in-line_package" title="Dual in-line package">Dual in-line package</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Quad_flat_package&action=edit&section=7" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist"> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-Greig07-1"><span class="mw-cite-backlink">^ <a href="#cite_ref-Greig07_1-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-Greig07_1-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription.id-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain;padding:0 1em 0 0}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite id="CITEREFGreig2007" class="citation book cs1">Greig, William J. (2007). <span class="id-lock-limited" title="Free access subject to limited trial, subscription normally required"><a rel="nofollow" class="external text" href="https://archive.org/details/integratedcircui00grei"><i>Integrated circuit packaging, assembly and interconnections</i></a></span>. Springer. pp. <a rel="nofollow" class="external text" href="https://archive.org/details/integratedcircui00grei/page/n56">35</a>-26. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/978-0-387-28153-7" title="Special:BookSources/978-0-387-28153-7"><bdi>978-0-387-28153-7</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Integrated+circuit+packaging%2C+assembly+and+interconnections&rft.pages=35-26&rft.pub=Springer&rft.date=2007&rft.isbn=978-0-387-28153-7&rft.aulast=Greig&rft.aufirst=William+J.&rft_id=https%3A%2F%2Farchive.org%2Fdetails%2Fintegratedcircui00grei&rfr_id=info%3Asid%2Fen.wikipedia.org%3AQuad+flat+package" class="Z3988"></span></span> </li> <li id="cite_note-Cohn05-2"><span class="mw-cite-backlink">^ <a href="#cite_ref-Cohn05_2-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-Cohn05_2-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFCohnHarper2005" class="citation book cs1">Cohn, Charles; Harper, Charles A., eds. (2005). <i>Failure-free integrated circuit packages</i>. <a href="/wiki/McGraw-Hill" class="mw-redirect" title="McGraw-Hill">McGraw-Hill</a>. pp. <span class="nowrap">22–</span>28. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/0-07-143484-4" title="Special:BookSources/0-07-143484-4"><bdi>0-07-143484-4</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Failure-free+integrated+circuit+packages&rft.pages=%3Cspan+class%3D%22nowrap%22%3E22-%3C%2Fspan%3E28&rft.pub=McGraw-Hill&rft.date=2005&rft.isbn=0-07-143484-4&rfr_id=info%3Asid%2Fen.wikipedia.org%3AQuad+flat+package" class="Z3988"></span></span> </li> <li id="cite_note-nqfp-3"><span class="mw-cite-backlink"><b><a href="#cite_ref-nqfp_3-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.onsemi.com/pdf/datasheet/amis-492x0-d.pdf">"AMIS-492x0 Fieldbus MAU Datasheet"</a> <span class="cs1-format">(PDF)</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=AMIS-492x0+Fieldbus+MAU+Datasheet&rft_id=https%3A%2F%2Fwww.onsemi.com%2Fpdf%2Fdatasheet%2Famis-492x0-d.pdf&rfr_id=info%3Asid%2Fen.wikipedia.org%3AQuad+flat+package" class="Z3988"></span></span> </li> <li id="cite_note-TDFN-4"><span class="mw-cite-backlink"><b><a href="#cite_ref-TDFN_4-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://datasheet.ciiva.com/26946/getdatasheetpartid-789095-26946803.pdf">"AAT3620 Datasheet"</a> <span class="cs1-format">(PDF)</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=AAT3620+Datasheet&rft_id=https%3A%2F%2Fdatasheet.ciiva.com%2F26946%2Fgetdatasheetpartid-789095-26946803.pdf&rfr_id=info%3Asid%2Fen.wikipedia.org%3AQuad+flat+package" class="Z3988"></span></span> </li> <li id="cite_note-TI-5"><span class="mw-cite-backlink"><b><a href="#cite_ref-TI_5-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://www.ti.com/lit/an/snoa025/snoa025.pdf">"Ceramic Quad Flatpack (CQFP)"</a> <span class="cs1-format">(PDF)</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Ceramic+Quad+Flatpack+%28CQFP%29&rft_id=http%3A%2F%2Fwww.ti.com%2Flit%2Fan%2Fsnoa025%2Fsnoa025.pdf&rfr_id=info%3Asid%2Fen.wikipedia.org%3AQuad+flat+package" class="Z3988"></span></span> </li> <li id="cite_note-CQFP-6"><span class="mw-cite-backlink"><b><a href="#cite_ref-CQFP_6-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://www.test-expert.ru/catalog/detail.php?ID=500&SECTION_ID=87">"Корпус микросхемы МК 4244.256-3 (тип CQFP)"</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=%D0%9A%D0%BE%D1%80%D0%BF%D1%83%D1%81+%D0%BC%D0%B8%D0%BA%D1%80%D0%BE%D1%81%D1%85%D0%B5%D0%BC%D1%8B+%D0%9C%D0%9A+4244.256-3+%28%D1%82%D0%B8%D0%BF+CQFP%29&rft_id=http%3A%2F%2Fwww.test-expert.ru%2Fcatalog%2Fdetail.php%3FID%3D500%26SECTION_ID%3D87&rfr_id=info%3Asid%2Fen.wikipedia.org%3AQuad+flat+package" class="Z3988"></span></span> </li> </ol></div></div> <div class="mw-heading mw-heading2"><h2 id="External_links">External 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href="https://web.archive.org/web/20090831062714/http://www.standardics.nxp.com/packaging/hvqfn/">HVQFN Documentation at NXP Semiconductors</a></li> <li><a rel="nofollow" class="external text" href="http://www.datasheetdir.com/package-HVQFN">More about HQVFN</a></li> <li><a rel="nofollow" class="external text" href="https://web.archive.org/web/20110927215953/http://www.issi.com/pdf/PQ.pdf">PQFP packaging information from Integrated Silicon Solution, Inc.</a> (<a href="/wiki/PDF" title="PDF">PDF</a>)</li></ul> <div class="navbox-styles"><style data-mw-deduplicate="TemplateStyles:r1129693374">.mw-parser-output .hlist dl,.mw-parser-output .hlist ol,.mw-parser-output .hlist ul{margin:0;padding:0}.mw-parser-output .hlist dd,.mw-parser-output .hlist dt,.mw-parser-output .hlist li{margin:0;display:inline}.mw-parser-output .hlist.inline,.mw-parser-output .hlist.inline dl,.mw-parser-output .hlist.inline ol,.mw-parser-output .hlist.inline ul,.mw-parser-output .hlist dl dl,.mw-parser-output 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title="Metal electrode leadless face">DO-213</a> (MELF / SOD-80 / LL34)</li> <li><a href="/wiki/DO-214" title="DO-214">DO-214</a> (SMA / SMB / SMC)</li> <li><a href="/wiki/Small_Outline_Diode" title="Small Outline Diode">SOD</a> (SOD-123 / SOD-323 / SOD-523 / SOD-923)</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;text-align:left;"><a href="/wiki/Semiconductor_device" title="Semiconductor device">3...5-pin</a></th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Small-outline_transistor" title="Small-outline transistor">SOT / TSOT</a></li> <li><a href="/wiki/TO-3" title="TO-3">TO-3</a> (TH / Panel)</li> <li><a href="/wiki/TO-5" title="TO-5">TO-5</a> (TH)</li> <li><a href="/wiki/TO-8" title="TO-8">TO-8</a> (TH)</li> <li><a href="/wiki/TO-18" title="TO-18">TO-18</a> (TH)</li> <li><a href="/wiki/TO-39" class="mw-redirect" title="TO-39">TO-39</a> (TH)</li> <li><a href="/wiki/TO-66" title="TO-66">TO-66</a> (TH / Panel)</li> <li><a href="/wiki/TO-92" title="TO-92">TO-92</a> (TH)</li> <li><a href="/wiki/TO-126" title="TO-126">TO-126</a> (TH / Panel)</li> <li><a href="/w/index.php?title=TO-202&action=edit&redlink=1" class="new" title="TO-202 (page does not exist)">TO-202</a> (TH / Panel)</li> <li><a href="/wiki/TO-220" title="TO-220">TO-220</a> (TH / Panel)</li> <li><a href="/w/index.php?title=TO-247&action=edit&redlink=1" class="new" title="TO-247 (page does not exist)">TO-247</a> (TH / Panel)</li> <li><a href="/w/index.php?title=TO-251&action=edit&redlink=1" class="new" title="TO-251 (page does not exist)">TO-251</a> (IPAK) (SMT)</li> <li><a href="/wiki/TO-252" title="TO-252">TO-252</a> (DPAK) (SMT)</li> <li><a href="/w/index.php?title=TO-262&action=edit&redlink=1" class="new" title="TO-262 (page does not exist)">TO-262</a> (I2PAK) (SMT)</li> <li><a href="/wiki/TO-263" title="TO-263">TO-263</a> (D2PAK) (SMT)</li> <li><a href="/w/index.php?title=TO-268&action=edit&redlink=1" class="new" title="TO-268 (page does not exist)">TO-268</a> (D3PAK) (SMT)</li> <li><a href="/w/index.php?title=TO-273&action=edit&redlink=1" class="new" title="TO-273 (page does not exist)">TO-273</a> (Super-220) (SMT)</li> <li><a href="/w/index.php?title=TO-274&action=edit&redlink=1" class="new" title="TO-274 (page does not exist)">TO-274</a> (Super-247) (SMT)</li> <li><a href="/w/index.php?title=TO-277&action=edit&redlink=1" class="new" title="TO-277 (page does not exist)">TO-277</a> (SMPC, SM-7) (SMT)</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;text-align:left;">Single row</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Single_in-line_package" class="mw-redirect" title="Single in-line package">SIP / SIL</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;text-align:left;">Dual row</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Quad_Flat_No-leads_package" class="mw-redirect" title="Quad Flat No-leads package">DFN</a></li> <li><a href="/wiki/Dual_in-line_package" title="Dual in-line package">DIP / DIL</a></li> <li><a href="/wiki/Flatpack_(electronics)" title="Flatpack (electronics)">Flat Pack</a></li> <li><a href="/wiki/Mini_Small_Outline_Package" title="Mini Small Outline Package">MSOP</a></li> <li><a href="/wiki/Small_Outline_Integrated_Circuit" class="mw-redirect" title="Small Outline Integrated Circuit">SO / SOIC</a></li> <li><a href="/wiki/Small_Outline_Integrated_Circuit#SOP_(JEITA/EIAJ)" class="mw-redirect" title="Small Outline Integrated Circuit">SOP / SSOP</a></li> <li><a href="/wiki/Thin_small_outline_package" title="Thin small outline package">TSOP / HTSOP</a></li> <li><a href="/wiki/Thin_shrink_small_outline_package" title="Thin shrink small outline package">TSSOP / HTSSOP</a></li> <li><a href="/wiki/Zig-zag_in-line_package" title="Zig-zag in-line package">ZIP</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;text-align:left;">Quad row</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li>LCC</li> <li><a href="/wiki/Quad_in-line_package" title="Quad in-line package">QIP / QIL</a></li> <li><a href="/wiki/Plastic_leaded_chip_carrier" class="mw-redirect" title="Plastic leaded chip carrier">PLCC</a></li> <li><a href="/wiki/Quad_Flat_No-leads_package" class="mw-redirect" title="Quad Flat No-leads package">QFN</a></li> <li><a href="/wiki/Quad_Flat_Package" class="mw-redirect" title="Quad Flat Package">QFP</a></li> <li>QUIP / QUIL</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;text-align:left;">Grid array</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Ball_grid_array" title="Ball grid array">BGA</a></li> <li><a href="/wiki/Embedded_Wafer_Level_Ball_Grid_Array" class="mw-redirect" title="Embedded Wafer Level Ball Grid Array">eWLB</a></li> <li><a href="/wiki/Land_grid_array" title="Land grid array">LGA</a></li> <li><a href="/wiki/Pin_grid_array" title="Pin grid array">PGA</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;text-align:left;"><a href="/wiki/Wafer_(electronics)" title="Wafer (electronics)">Wafer</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li>COB</li> <li>COF</li> <li>COG</li> <li><a href="/wiki/Chip-scale_package" title="Chip-scale package">CSP</a></li> <li><a href="/wiki/Flip_chip" title="Flip chip">Flip Chip</a></li> <li><a href="/wiki/Package_on_package" class="mw-redirect" title="Package on package">PoP</a></li> <li><a href="/wiki/Quilt_packaging" title="Quilt packaging">QP</a></li> <li><a href="/wiki/Universal_Integrated_Circuit_Card" class="mw-redirect" title="Universal Integrated Circuit Card">UICC</a></li> <li><a href="/wiki/Wafer-level_packaging" title="Wafer-level packaging">WL-CSP / WLP</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;text-align:left;">Related topics</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Electronic_packaging" title="Electronic packaging">Electronic packaging</a></li> <li><a href="/wiki/Integrated_circuit_packaging" title="Integrated circuit packaging">Integrated circuit packaging</a></li> <li><a href="/wiki/List_of_electronic_component_packaging_types" title="List of electronic component packaging types">List of electronic component packaging types</a></li> <li><a href="/wiki/Printed_circuit_board" title="Printed circuit board">Printed circuit board</a></li> <li><a href="/wiki/Surface-mount_technology" title="Surface-mount technology">Surface-mount technology</a></li> <li><a href="/wiki/Through-hole_technology" title="Through-hole technology">Through-hole technology</a></li></ul> </div></td></tr><tr><td class="navbox-abovebelow" colspan="2"><div>It is relatively common to find packages that contain other components than their designated ones, such as diodes or <a href="/wiki/Voltage_regulator" title="Voltage regulator">voltage regulators</a> in transistor packages, etc.</div></td></tr></tbody></table></div>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?useformat=desktop&type=1x1&usesul3=0" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Retrieved from "<a dir="ltr" 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