舟山SMT代工誠(chéng)信經(jīng)營(yíng) 中山市浩明電子科技供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺(tái)【買(mǎi)產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="因?yàn)镾MT貼片無(wú)鉛焊接溫度比有鉛焊接高，尤其大尺寸、多層板，舟山SMT代工，以及有熱容量大的元器件時(shí)，峰值溫度往往要達(dá)到260℃左右，冷卻凝固到室溫的溫差大，因此，舟山SMT代工，無(wú)鉛焊點(diǎn)的應(yīng)力也比較大。再加上較多的IMC，IMC的熱膨脹系"><meta name="keywords" content="舟山SMT代工,SMT貼片"><link rel="canonical" href="http://www.cdcfah.com/"/><meta name="applicable-device" content="pc"><link rel="shortcut icon" href="/static/new_net_01/images/favicon.ico"><link rel="stylesheet" href="/static/new_net_01/css/slick.css" /><link rel="stylesheet" href="/static/new_net_01/css/addnew.css"><link rel="stylesheet" href="/static/new_net_01/css/sidenav.css"><link rel="stylesheet" href="/static/new_net_01/css/style.css" /><link rel="stylesheet" href="/static/new_net_01/css/tab.css"><link rel="stylesheet" href="/static/new_net_01/css/404.css"> <meta name="baidu-site-verification" content="OBVzrC9aaQ" /> <meta http-equiv="Cache-Control" 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href="http://www.cdcfah.com/cp/second-_dzyqj/">電子元器件</a>?<a href="http://www.cdcfah.com/cp/third-dzyqj_kcdzyqjcl/">庫(kù)存電子元器件、材料</a>?舟山SMT代工誠(chéng)信經(jīng)營(yíng) 中山市浩明電子科技供應(yīng)</p><div id="97tbbp7" class="leftbox clearfix"><h1>舟山SMT代工誠(chéng)信經(jīng)營(yíng) 中山市浩明電子科技供應(yīng)</h1><div id="nt9bjpd" class="proBig"><div id="7bfd579" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/haomingdianzi/637330258632216797/5876714.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="b77rzpn" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/haomingdianzi/637330258632216797/5876714.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="795zv9t" 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>廣東省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>舟山SMT代工,SMT貼片</p><p><span>***更新：</span>2021-01-17 00:21:33</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="dl7hpfx" 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(huà): </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(jī): </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(dāng)前離線(xiàn)] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="fndt5hd" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="v9h7thv" class="box"><p><p style="text-indent:25px">因?yàn)镾MT貼片無(wú)鉛焊接溫度比有鉛焊接高，尤其大尺寸、多層板，舟山SMT代工，以及有熱容量大的元器件時(shí)，峰值溫度往往要達(dá)到260℃左右，冷卻凝固到室溫的溫差大，因此，舟山SMT代工，無(wú)鉛焊點(diǎn)的應(yīng)力也比較大。再加上較多的IMC，IMC的熱膨脹系數(shù)比較大，在高溫工作或強(qiáng)機(jī)械沖擊下容易產(chǎn)生開(kāi)裂。QFP、Chp元件及BGA焊點(diǎn)空洞，分布在焊接界面的空洞會(huì)影響PCBA中個(gè)元器件的連接強(qiáng)度；SOJ引腳焊點(diǎn)裂紋及BGA焊球與焊盤(pán)界面的裂紋缺陷，焊點(diǎn)裂紋和焊接界面的裂紋都會(huì)影響PCBA產(chǎn)品的長(zhǎng)期可靠性。另一類(lèi)是處于焊接界面的空洞(或稱(chēng)微孔)，舟山SMT代工，這類(lèi)空洞非常小，甚至只有通過(guò)掃描電子顯微鏡（SEM）才能發(fā)現(xiàn)。空洞的位置和分布可能是造成電連接失效的潛在原因。特別是功率元件空洞測(cè)會(huì)使元件熱阻增大，造成失效。研究表明，焊接界面的空洞（微孔）主要是由于Cu的高溶解性造成的。由于無(wú)鉛焊料的熔點(diǎn)高，而且又是高Sn焊料，Cu在無(wú)鉛焊接時(shí)的溶解速度比Sn-Pb焊接時(shí)高許多。無(wú)鉛焊料中銅的高溶解性會(huì)在銅與焊料的界面產(chǎn)生“空洞”，隨著時(shí)間的推移，這些空洞有可能會(huì)削弱焊點(diǎn)的可靠性。SMT貼片拾片坐標(biāo)不合適,可能由于供料器的供料中心沒(méi)有調(diào)整好,應(yīng)重新調(diào)整供料器。舟山SMT代工</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="舟山SMT代工,SMT貼片" src="https://tyunfile.71360.com/UploadFile/haomingdianzi/637330258632216797/5876714.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(lái)越高，集成電路的內(nèi)絕緣層越來(lái)越薄，這個(gè)該怎么解釋呢？大家可以從相關(guān)芯片的制程能力新聞中可以窺探一二，比如說(shuō)5nm的制程工藝在指甲蓋大小的體積內(nèi)要塞進(jìn)上百億個(gè)晶體管，可想而知精密度的大小問(wèn)題。那么就會(huì)牽扯到互連導(dǎo)線(xiàn)寬度與間距的問(wèn)題，毋庸置疑間距是越來(lái)越小的。例如，CMOS器件絕緣層的典型厚度約為0.Ium，其相應(yīng)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(yùn)輸、存儲(chǔ)等過(guò)程中所產(chǎn)生的靜電電壓遠(yuǎn)遠(yuǎn)超過(guò)CMOS器件的擊穿電壓，往往會(huì)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(yán)重影響產(chǎn)品的可靠性。佛山標(biāo)準(zhǔn)SMT貼片訂單SMT貼片加工可靠性高、抗振能力強(qiáng)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="舟山SMT代工,SMT貼片" src="https://tyunfile.71360.com/UploadFile/haomingdianzi/637330258869951172/8176008.png"></div><p style="text-indent:25px">SMT氣路模組的保養(yǎng):氣路是貼片機(jī)正常運(yùn)作的關(guān)鍵因素，包括電磁閥、真空發(fā)生裝置、氣缸部分。該處因?yàn)榕c貼片機(jī)的精度和質(zhì)量息息相關(guān)，如果長(zhǎng)時(shí)間不做清理會(huì)造成堵塞氣路，造成氣路不暢，從而造成拋料、缺件等；嚴(yán)重情況下，堆積的油塵混合物會(huì)堵塞真空發(fā)生器、電磁閥、氣缸等密封件，造成機(jī)器部件的損壞，影響機(jī)器的使用。SNT整機(jī)維護(hù)。目前行業(yè)內(nèi)有一個(gè)職位叫貼片機(jī)修師。類(lèi)似于經(jīng)過(guò)了廠(chǎng)家培訓(xùn)的工種，可以對(duì)整機(jī)進(jìn)行完善的維護(hù)。由于磨損和變形長(zhǎng)時(shí)間使用的機(jī)器，老化，運(yùn)行現(xiàn)象份部門(mén)之間發(fā)生的微小偏差（例如：磨損，擦傷，馬達(dá)，螺絲松動(dòng)固定螺釘，在機(jī)器框架線(xiàn)電纜的作用不好的一些機(jī)械部件，參數(shù)為了在設(shè)置錯(cuò)誤等），機(jī)器的維護(hù)，以避免風(fēng)險(xiǎn)，不能及時(shí)解決，勢(shì)必會(huì)對(duì)正常的生產(chǎn)機(jī)器的未來(lái)構(gòu)成威脅，必須將本機(jī)大保養(yǎng)，及時(shí)檢查，發(fā)現(xiàn)內(nèi)的機(jī)器和解決隱患，從而降低機(jī)器故障的發(fā)生頻度，提高生產(chǎn)效率。</p><p style="text-indent:25px">SMT貼片封裝技術(shù)的定位已從連接、組裝等一般性生產(chǎn)技術(shù)逐步演變?yōu)閷?shí)現(xiàn)高度多樣化電子信息設(shè)備的一個(gè)關(guān)鍵技術(shù)。更高密度、更小凸點(diǎn)、無(wú)鉛工藝等需要全新的封裝技術(shù)，更能適應(yīng)消費(fèi)電子產(chǎn)品市場(chǎng)快速變化的需求。封裝技術(shù)的推陳出新，也已成為半導(dǎo)體及電子制造技術(shù)繼續(xù)發(fā)展的有力推手，并對(duì)半導(dǎo)體前道工藝和表面貼裝技術(shù)的改進(jìn)產(chǎn)生著重大影響。如果說(shuō)倒裝芯片凸點(diǎn)生成是半導(dǎo)體前道工藝向后道封裝的延伸，那么，基于引線(xiàn)鍵合的硅片凸點(diǎn)生成則是封裝技術(shù)向前道工藝的擴(kuò)展。smt貼片是現(xiàn)代電子制造的重要技術(shù)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="舟山SMT代工,SMT貼片" src="https://tyunfile.71360.com/UploadFile/haomingdianzi/637330258702304688/5407070.png"></div><p style="text-indent:25px">SMT貼片加工的優(yōu)點(diǎn)有:組裝密度高、電子產(chǎn)品體積小、重量輕，貼片元件的體積和重量只有傳統(tǒng)插裝元件的1/10左右，一般采用SMT之后，電子產(chǎn)品體積縮小40%~60%，重量減輕60%~80%?？煽啃愿?、抗振能力強(qiáng)。焊點(diǎn)缺陷率低，高頻特性好，減少了電磁和射頻干擾。易于實(shí)現(xiàn)自動(dòng)化，提高生產(chǎn)效率。降低成本達(dá)30%~50%。節(jié)省材料、能源、設(shè)備、人力、時(shí)間等。正是由于SMT貼片加工的工藝流程的復(fù)雜，所以出現(xiàn)了很多的SMT貼片加工的工廠(chǎng)，專(zhuān)業(yè)做SMT貼片的加工，得益于電子行業(yè)的蓬勃發(fā)展，SMT貼片加工成就了一個(gè)行業(yè)的繁榮。由于SMT貼片無(wú)鉛焊接溫度比有鉛焊接高，尤其大尺寸、多層板，有熱容量大的元器件時(shí)，峰值溫度要達(dá)到260℃。貼片電子</p><p style="text-indent:25px">所用設(shè)備為絲印機(jī)（絲網(wǎng)印刷機(jī)），位于SMT生產(chǎn)線(xiàn)的較前端。舟山SMT代工</p><p style="text-indent:25px">SMT貼片加工中施加焊膏的工藝要求有：1、施加的焊膏量均勻，一致性好。焊膏圖形要消晰，相鄰的圖形之間盡量不要粘連。焊膏圖形與焊盤(pán)圖形要一致，盡量不要錯(cuò)位。2、在一般情況下，焊盤(pán)上單位面積的焊膏量應(yīng)為0.8mg/mm3左右:對(duì)卒間距元器件，應(yīng)為0.5mgmm2左右。3、印刷在基板上的焊膏，與希望重量值相比，可允許有一定的偏差，至于焊膏覆蓋每個(gè)焊盤(pán)的面積，應(yīng)在75％以上。采用免清洗技術(shù)時(shí)，要求焊膏全部位于焊盤(pán)上，無(wú)鉛要求焊膏完全覆蓋焊盤(pán)。4、焊膏印刷后，應(yīng)無(wú)嚴(yán)重塌落，邊像整齊，錯(cuò)位不大于02mm對(duì)容間距元器件焊盤(pán)，錯(cuò)位不大于O0lm?；灞砻娌辉试S被焊膏污染。采用免清洗技術(shù)時(shí)，可通過(guò)縮小模板開(kāi)口尺寸的方法，使焊膏全部位于焊盤(pán)上。舟山SMT代工</p><p style="text-indent:25px">中山市浩明電子科技有限公司擁有SMT (貼片)+COB(邦定) 來(lái)料代加工，擁有8條高精細(xì)全自動(dòng)生產(chǎn)線(xiàn)，可貼裝 0402 、 0201 、SOT 、SOP 、BGA 、FPC插座、USB接口、QFP 、QFN 、PLCC 等各類(lèi)高精細(xì) 異形元件，有3臺(tái)COB邦機(jī)，全自動(dòng)固晶機(jī)、封膠機(jī)，能高的效率 ***完成邦定需求。等多項(xiàng)業(yè)務(wù)，主營(yíng)業(yè)務(wù)涵蓋smt貼片，智能電子鎖，藍(lán)牙系列，網(wǎng)絡(luò)直播聲卡。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)。中山市浩明電子科技有限公司主營(yíng)業(yè)務(wù)涵蓋smt貼片，智能電子鎖，藍(lán)牙系列，網(wǎng)絡(luò)直播聲卡，堅(jiān)持“質(zhì)量保證、良好服務(wù)、顧客滿(mǎn)意”的質(zhì)量方針，贏得廣大客戶(hù)的支持和信賴(lài)。公司憑著雄厚的技術(shù)力量、飽滿(mǎn)的工作態(tài)度、扎實(shí)的工作作風(fēng)、良好的職業(yè)道德，樹(shù)立了良好的smt貼片，智能電子鎖，藍(lán)牙系列，網(wǎng)絡(luò)直播聲卡形象，贏得了社會(huì)各界的信任和認(rèn)可。</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/2875477.html</p></div></div></div></div></div><div id="j95vvbr" class="page-right twoColRt"><div id="fd79bhn" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="r9hl5vt" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" alt="福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)" class="vcenter" 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