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href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/first-_jxjxysb/">機(jī)械及行業(yè)設(shè)備</a>?<a href="http://www.cdcfah.com/cp/second-jxjxysb_jwjjg/">機(jī)械五金加工</a>?<a href="http://www.cdcfah.com/cp/third-jwjjg_jijiagong/">機(jī)加工</a>?揚(yáng)州電子pcba 服務(wù)為先無錫格凡科技供應(yīng)</p><div id="gfn5ki3" class="leftbox clearfix"><h1>揚(yáng)州電子pcba 服務(wù)為先無錫格凡科技供應(yīng)</h1><div id="uxv3nvu" class="proBig"><div id="8ubziuy" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/wxgfkj/637393423832084826/540213.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="j5830ga" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/wxgfkj/637393423832084826/540213.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="b581lqj" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)格要求：</span>面議</p><p><span>所在地：</span>江蘇省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>揚(yáng)州電子pcba,PCBA</p><p><span>***更新：</span>2020-11-04 07:28:56</p><p><span id="click" >瀏覽次數(shù)：2次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="3386mv0" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">無錫格凡科技有限公司</a></p><p><span>聯(lián)系人：</span>雷進(jìn)波</p><p><span>郵箱: </span>50906500@qq.com</p><p><span>電話: </span>13921528672</p><p><span>傳真: </span>0510_</p><p><span>網(wǎng)址: </span>http://www.gfsmt.com</p><p><span>手機(jī): </span>0510-88866612</p><p><span>地址: </span>無錫市錫山區(qū)蓉強(qiáng)路5號401室</p><p>[當(dāng)前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="51lwucw" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="uzwqnoh" class="box"><p><p style="text-indent:25px">PCBA操作員只需要嚴(yán)格按照規(guī)定設(shè)定參數(shù)即可。在大批量生產(chǎn)過程中，對鋼網(wǎng)的堵孔、偏位等現(xiàn)象的檢測尤為重要，尤其是印刷后SPI檢測出的部分缺陷呈現(xiàn)上升趨勢時(shí)，必須停機(jī)檢查鋼網(wǎng)的本身的運(yùn)行狀況。PI印刷效果檢測，在錫膏印刷機(jī)之后，揚(yáng)州電子pcba，揚(yáng)州電子pcba，配置SPI錫膏檢測儀尤為重要，它可以有效地檢測出錫膏印刷過程中的少錫、連錫、缺口、拔絲、偏位等眾多缺陷。從而比較大程度的提升整體焊接PPM值。管理錫膏印刷效果本身不是什么秘密，它需要管理者細(xì)心地將每一項(xiàng)管理手段，在PCBA加工制程中貫徹實(shí)施。并設(shè)計(jì)一套能夠發(fā)現(xiàn)和檢測出缺陷的閉環(huán)機(jī)制，揚(yáng)州電子pcba。PCBA常見的其他焊盤設(shè)計(jì)缺陷：導(dǎo)線與元器件焊盤重疊，影響焊點(diǎn)形態(tài)、增加橋連、虛焊風(fēng)險(xiǎn)。揚(yáng)州電子pcba</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="揚(yáng)州電子pcba,PCBA" src="https://tyunfile.71360.com/UploadFile/wxgfkj/637393423832084826/540213.png"></div><p style="text-indent:25px">安裝BGA封裝元器件的PCB采用陰陽拼版設(shè)計(jì)造成BGA焊點(diǎn)不可靠。異形板，未做拼板補(bǔ)償，法進(jìn)入設(shè)備，需要工裝，增加制造成本。四拼板全部采用郵票孔方式拼接，拼板強(qiáng)度低、易變形。PCBA阻焊膜設(shè)計(jì)不良有哪些？焊盤與通孔連線。貼裝焊盤連接導(dǎo)通孔之間的導(dǎo)線原則上均應(yīng)做阻焊。缺少阻焊會發(fā)生焊點(diǎn)少錫、冷焊、短路、未焊上、立碑等焊接缺陷。焊盤與焊盤之間的阻焊設(shè)計(jì)，阻焊圖形規(guī)格應(yīng)符合具體元器件焊端分布情形設(shè)計(jì):焊盤與焊盤之間如用開窗式阻焊導(dǎo)致焊接時(shí)焊盤之間短路，焊盤與焊盤之間設(shè)計(jì)成引腳**阻焊方式，焊接時(shí)焊盤之間不會短路。張家港電子產(chǎn)品手機(jī)pcba在做PCBA快速打樣的過程中，一定要知道自己的目的，抓大放小，才能做到PCBA快速打樣。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="揚(yáng)州電子pcba,PCBA" src="https://tyunfile.71360.com/UploadFile/wxgfkj/637393423701322283/5252848.png"></div><p style="text-indent:25px">每種電子元器件都有其獨(dú)特的封裝形式、品牌、參數(shù)。PCBA設(shè)計(jì)者需要根據(jù)實(shí)際電路需要，選擇合適的電子元器件，將其編制到BOM（BillofMaterials）物料清單中。PCBA組件就是指焊接在PCB裸板上的電子元器件，包含SMD貼片和DIP插件封裝的，例如集成電路IC、晶振、二極管、三極管、電阻、電容、變壓器、數(shù)碼管、連接器、電感等，它們是實(shí)現(xiàn)PCBA板硬件連接和程序功能實(shí)現(xiàn)的基礎(chǔ)。因?yàn)镻CB設(shè)計(jì)者會根據(jù)產(chǎn)品的功能，繪制相應(yīng)的電路原理圖，必須依托這些組件來實(shí)現(xiàn)電路功能。</p><p style="text-indent:25px">PCBA與fpc連接組件的焊接系統(tǒng)包括半導(dǎo)體激光器、激光出射頭、CCD相機(jī)定位；其特點(diǎn)在于，可視覺定位fpc板與PCBA的焊盤位置，并可對微小焊盤區(qū)域進(jìn)行溫度控制；PCBA與fpc連接組件的焊接系統(tǒng)還包括焊接定位工裝，焊接定位工裝包括用于支撐PCBA與fpc連接組件的底座以及壓緊機(jī)構(gòu)，非接觸式激光焊接，焊接過程不產(chǎn)生磨損，操作簡單，便于控制。實(shí)現(xiàn)fpc與PCBA連接組件焊接要求：插裝元件在焊接面引腳高度1．5～2．0mm。貼片元件應(yīng)平貼板面，焊點(diǎn)光滑無毛刺、略呈弧狀，焊錫應(yīng)超過焊端高度的2／3，但不應(yīng)超過焊端高度。PCBA測試，打樣的測試，一般2天，批量測試，一般6天。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="揚(yáng)州電子pcba,PCBA" src="https://tyunfile.71360.com/UploadFile/wxgfkj/637393423627942921/9477941.png"></div><p style="text-indent:25px">如何減少PCBA組裝時(shí)的應(yīng)力是工藝設(shè)計(jì)的任務(wù)之一。PCBA散熱焊盤的設(shè)計(jì)要求：所謂散熱焊盤，是指與元器件底部散熱金屬面焊接的焊盤，通常功率比較小，主要通過散熱焊盤上的散熱孔將熱量分散到接地層。為了更好地散熱，有時(shí)需要將散熱孔設(shè)計(jì)為通孔（不塞孔），這樣回流焊接時(shí)熔融焊料就會流到背面，形成錫珠，從而影響錫珠面的焊膏印刷。設(shè)計(jì)要求：為了減少錫珠現(xiàn)象，可以將孔設(shè)計(jì)為直徑≤0.30mm或≥0.80mm的孔；也可以采用樹脂塞孔表面電鍍（POFV）設(shè)計(jì)。將散熱焊盤全部布局在二次焊接面，接受錫珠存在。設(shè)計(jì)散熱工藝層。如果PCB板厚<2.4mm，與散熱孔連接的地層數(shù)<四層，一般熔融焊料會流進(jìn)散熱孔并形成錫珠現(xiàn)象。因此，建議如果與散熱孔連接的地層數(shù)<四層，可以設(shè)計(jì)散熱工藝層（當(dāng)然，PCB層數(shù)一定能夠?qū)崿F(xiàn)），只要散熱孔連接的大銅面超過六層，一般就不會形成錫珠現(xiàn)象。由于PCBA板由眾多電子元器件構(gòu)成，其中任何一顆元器件出了品質(zhì)事故，將勢必造成整批的產(chǎn)品不良。張家港電子產(chǎn)品手機(jī)pcba</p><p style="text-indent:25px">PCBA插件，將插件物料進(jìn)行引腳的加工，插裝在PCB板子上。揚(yáng)州電子pcba</p><p style="text-indent:25px">由于線卡采用導(dǎo)軌安裝，安裝與維護(hù)期間有時(shí)需要插拔操作，因此，線卡必須滿足一定的強(qiáng)度要求和平整度要求。通信線卡具有以下特點(diǎn):尺寸大；元件封裝種類與數(shù)量多；元件工藝要求差異大；組裝密度大；功耗大，多帶有散熱器；壽命要求長、可靠性要求高。另外，在生產(chǎn)方面，也具有明顯的特點(diǎn)，就是“多品種、小批量”。這些特點(diǎn)，使得通信PCBA組裝工藝復(fù)雜化。某工藝具有以下特點(diǎn)：工藝路徑長。通信線卡上有些元器件需要采用表面組裝工藝，有些需要采用波峰焊接工藝，還有些需要采用選擇性波峰焊接工藝或手工焊接工藝，很少只用一種工藝方法能夠完成組裝，往往需要多種工藝方法組合使用，這樣就使得工藝路徑比較長。揚(yáng)州電子pcba</p><p style="text-indent:25px">無錫格凡科技有限公司擁有承接各種電子產(chǎn)品的貼片、插件、后焊、測試及組裝等電子產(chǎn)品；線路板的設(shè)計(jì)；電子元器件貿(mào)易，來料加工及包工包料；電動(dòng)車控制器的生產(chǎn)及銷售，轉(zhuǎn)換器，電源，照明Led的設(shè)計(jì)生產(chǎn)及銷售；工業(yè)控制器組裝生產(chǎn)銷售等多項(xiàng)業(yè)務(wù)，主營業(yè)務(wù)涵蓋電子元器件貼片，插件焊接，電子產(chǎn)品設(shè)計(jì)，電子產(chǎn)品測試組裝。目前我公司在職員工以90后為主，是一個(gè)有活力有能力有創(chuàng)新精神的團(tuán)隊(duì)。誠實(shí)、守信是對企業(yè)的經(jīng)營要求，也是我們做人的基本準(zhǔn)則。公司致力于打造高品質(zhì)的電子元器件貼片，插件焊接，電子產(chǎn)品設(shè)計(jì)，電子產(chǎn)品測試組裝。公司力求給客戶提供全數(shù)良好服務(wù)，我們相信誠實(shí)正直、開拓進(jìn)取地為公司發(fā)展做正確的事情，將為公司和個(gè)人帶來共同的利益和進(jìn)步。經(jīng)過幾年的發(fā)展，已成為電子元器件貼片，插件焊接，電子產(chǎn)品設(shè)計(jì)，電子產(chǎn)品測試組裝行業(yè)出名企業(yè)。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/1844169.html</p></div></div></div></div></div><div id="cz3uz5u" class="page-right twoColRt"><div id="yfdp5an" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="d88echh" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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