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class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價格要求：</span>面議</p><p><span>所在地：</span>廣東省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關鍵詞：</span>浙江pcb貼片加工,SMT貼片</p><p><span>***更新：</span>2020-10-19 03:16:12</p><p><span id="click" >瀏覽次數(shù)：1次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="8f82lkg" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">中山市浩明電子科技有限公司</a></p><p><span>聯(lián)系人：</span>劉江波</p><p><span>郵箱: </span>smtdong@126.com</p><p><span>電話: </span>13590701587</p><p><span>傳真: </span>0760_23880308</p><p><span>網(wǎng)址: </span>http://www.haomiandianzi.shop.88360.com</p><p><span>手機: </span>0760-23880308</p><p><span>地址: </span>東區(qū)白沙灣第二工業(yè)區(qū)C2幢4樓</p><p>[當前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="gvxz30t" class="page-proshow02"><p class="title">詳細說明</p><div id="eyvseq8" class="box"><p><p style="text-indent:25px">加工SMT貼片小批量貴是因為沒有太多的數(shù)量來分攤相應的費用。對于PCBA加工廠來說：“客戶做1片，跟做10000片所需要的工序流程是沒有一丁點差別的”比如元器件檢測、存樣入系統(tǒng)、錫膏回溫攪拌、PCB烘烤、貼片編程，浙江pcb貼片加工、SPI檢測、AOI檢測、首件檢測、老化測試、組裝包裝出貨等等工序。量不大、工序一樣沒少。較大的成本就在于頻繁的轉線、換料，時間成本和人工成本難以縮減，浙江pcb貼片加工，浙江pcb貼片加工。比較簡單的就是機器剛跑起來就要停下來，真的非常影響生產(chǎn)效率。所以如果不是專業(yè)配置打樣線的PCB加工廠。一般也不會接小批量SMT貼片加工的訂單。SMT貼片加工中錫膏本身的粘性不夠，元器件在搬運時發(fā)生振蕩、搖晃等問題而造成了元器件移位。浙江pcb貼片加工</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="浙江pcb貼片加工,SMT貼片" src="https://tyunfile.71360.com/UploadFile/haomingdianzi/637330258719462891/5378899.png"></div><p style="text-indent:25px">在SMT貼片加工中，隨著PCBA電路板的集成度越來越高，集成電路的內(nèi)絕緣層越來越薄，這個怎么解釋呢？大家可以從相關芯片的制程能力新聞中可以窺探一二，比如說5nm的制程工藝在指甲蓋大小的體積內(nèi)要塞進上百億個晶體管，可想而知精密度的大小問題。那么就會牽扯到互連導線寬度與間距的問題，毋庸置疑間距是越來越小的。例如，CMOS器件絕緣層的典型厚度約為0.Ium，其相應耐擊穿電壓在80～100V：VMOS器件的絕緣層更海，擊穿電壓為30V。而在電子產(chǎn)品制造及運輸、存儲等過程中所產(chǎn)生的靜電電壓遠遠超過CMOS器件的擊穿電壓，往往會使器件產(chǎn)生硬擊穿或軟擊穿（器件局部損傷）現(xiàn)象，使其失效或嚴重影響產(chǎn)品的可靠性。北京小型smt貼片機SMT貼片加工根據(jù)產(chǎn)品類型不同，貼片價格也是不相同的，在工藝流程上也是有所區(qū)別。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="浙江pcb貼片加工,SMT貼片" src="https://tyunfile.71360.com/UploadFile/haomingdianzi/637330258632216797/5876714.png"></div><p style="text-indent:25px">當焊膏印刷，有必要準備一個材料粘貼工具，鋼葉片﹑擦拭紙，氣流成洗滌劑﹑攪拌刀。SMT貼片工廠中，我們大多數(shù)的企業(yè)常用的錫膏合金主要成份為Sn/Pb合金，且合金進行比例為63/37。焊料的主要成分粘貼分為兩個部分的錫粉和助焊劑。助焊劑主要是可以起到有效去除氧化物﹑破壞融錫表面進行張力和防止再度發(fā)生氧化的作用。錫膏中錫粉顆粒與助熔劑的體積比約為1：1，重量比約為9：1。SMT加工中錫膏使用前必須經(jīng)過解凍和回溫攪拌操作后才能使用。回溫不能通過使用加熱的方式可以進行回溫。PCBA制造中比較容易忽視的一個環(huán)節(jié)就是“BGA、IC芯片的存儲。芯片的存儲要注意包裝和存放在干燥的環(huán)境中，保持**元器件的干燥和抗氧化。很多非常重要的問題可能大家都會注意到，但是在一些細節(jié)的問題上,我們經(jīng)常會忽視，往往這些也同樣需要SMT貼片加工中需要特別注意。</p><p style="text-indent:25px">SMT貼片加工過程中的防靜電：1、定期檢查STM貼片加工廠內(nèi)外的接地系統(tǒng)。車間外的接地系統(tǒng)應每年檢測一次，電阻要求在20以下改線時需要重新測試。防靜電桌墊、防靜電地板墊、接地系統(tǒng)應每6個月測試一次，應符合SMT貼片防靜電接地要求。檢測機器與地線之間的電阻時，要求電阻為1MΩ，并做好檢測記錄。2、每天測量車間內(nèi)溫度濕度兩次，并做好有效記錄，以確保生產(chǎn)區(qū)恒溫、恒濕。3、SMT貼片加工的任何操作員進入車間之前必須做好防靜電措施。在一般選擇了SMT貼片加工之后，相應的功能情況下電子產(chǎn)品的整體體積會減少40%~60%。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="浙江pcb貼片加工,SMT貼片" src="https://tyunfile.71360.com/UploadFile/haomingdianzi/637330258831015625/5527413.png"></div><p style="text-indent:25px">雙面SMT貼片：雙面PCB板是兩面都有布線，必須要在兩面間有適當?shù)碾娐愤B接才行。這種電路間的橋梁叫做導孔。導孔是在PCB上，充滿或涂上金屬的小洞，它可以與兩面的導線相連接，可貼裝元件更多，因而雙面SMT貼片工藝更為復雜。1、雙面組裝工藝1)來料檢測—PCB的A面絲印焊膏(點貼片膠)—貼片—烘干(固化)—A面回流焊接—清洗—翻板PCB的B面絲印焊膏(點貼片膠)—貼片—烘干—回流焊接，此工藝一般適用于在PCB兩面均貼裝有PLCC等較大的SMD時采用。2、雙面混裝工藝1)來料檢測—PCB的B面點貼片膠—貼片—固化—翻板—PCB的A面插件—波峰焊—清洗—檢測—返修。先貼后插，適用于SMD元件多于分離元件的情況。2)來料檢測—PCB的A面絲印焊膏—貼片—烘干—回流焊接—插件，引腳打彎—翻板—PCB的B面點貼片膠—貼片—固化—翻板—波峰焊—清洗—檢測—返修。A面混裝，B面貼裝。3)來料檢測—PCB的B面點貼片膠貼片—固化—翻板—PCB的A面絲印焊膏—貼片—A面回流焊接—插件—B面波峰焊—清洗—檢測—返修。A面混裝，B面貼裝。先貼兩面SMD，回流焊接，后插裝，波峰焊。得益于電子行業(yè)的蓬勃發(fā)展，SMT貼片加工成就了一個行業(yè)的繁榮。浙江pcb貼片加工</p><p style="text-indent:25px">SMT貼片是表面組裝技術（表面貼裝技術），是電子組裝行業(yè)里當下流行的一種技術和工藝。浙江pcb貼片加工</p><p style="text-indent:25px">SMT貼片拾片失?。?.SMT貼片時的拾片高度不合適,由于元件厚度或Z軸高度設置錯誤,檢查后按實際值修正。2.拾片坐標不合適,可能由于供料器的供料中心沒有調整好,應重新調整供料器。3.編帶供料器的塑料薄膜沒有撕開,一般都是由于卷帶沒有安裝到位或卷帶輪松緊不合適造成的,應重新調整供料器。4.吸嘴堵塞,應清洗吸嘴。5.吸嘴端面有臟物或有裂紋,造成漏氣。6.吸嘴型號不合適,孔徑太大會造成漏氣,孔徑太小會造成吸力不夠。7.氣壓不足或氣路堵塞,檢查氣路是否漏氣,增加氣壓或疏通氣路。浙江pcb貼片加工</p><p style="text-indent:25px">中山市浩明電子科技有限公司發(fā)展規(guī)模團隊不斷壯大，現(xiàn)有一支專業(yè)技術團隊，各種專業(yè)設備齊全。浩明是中山市浩明電子科技有限公司的主營品牌，是專業(yè)的SMT (貼片)+COB(邦定) 來料代加工，擁有8條高精密全自動生產(chǎn)線，可貼裝 0402 、 0201 、SOT 、SOP 、BGA 、FPC插座、USB接口、QFP 、QFN 、PLCC 等各類高精密異形元件，有3臺COB邦機，全自動固晶機、封膠機，能高效率 ***完成邦定需求。公司，擁有自己**的技術體系。公司堅持以客戶為中心、SMT (貼片)+COB(邦定) 來料代加工，擁有8條高精密全自動生產(chǎn)線，可貼裝 0402 、 0201 、SOT 、SOP 、BGA 、FPC插座、USB接口、QFP 、QFN 、PLCC 等各類高精密異形元件，有3臺COB邦機，全自動固晶機、封膠機，能高效率 ***完成邦定需求。市場為導向，重信譽，保質量，想客戶之所想，急用戶之所急，全力以赴滿足客戶的一切需要。中山市浩明電子科技有限公司主營業(yè)務涵蓋smt貼片，智能電子鎖，藍牙系列，網(wǎng)絡直播聲卡，堅持“質量保證、良好服務、顧客滿意”的質量方針，贏得廣大客戶的支持和信賴。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/1611674.html</p></div></div></div></div></div><div id="im2jijl" class="page-right twoColRt"><div id="wqiph8j" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="3a9eqsu" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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