湖北PCBA電路板生產(chǎn)商深圳市潤澤五洲電子供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="Pcba電路板短路現(xiàn)象。拿一塊板來割線（特別適合單/雙層板），割線后將每部分功能塊分別通電,逐步排除。使用短路定位分析儀器?如果有BGA芯片，由于所有焊點被芯片覆蓋看不見，而且又是多層板（4層以上），因此好在設(shè)計時將每個芯片的電源分割開，用"><meta name="keywords" content="湖北PCBA電路板生產(chǎn)商,PCBA電路板"><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" content="no-transform" /> <meta 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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(guān)鍵詞：</span>湖北PCBA電路板生產(chǎn)商,PCBA電路板</p><p><span>***更新：</span>2020-10-23 09:21:34</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="8d2t24p" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">深圳市潤澤五洲電子科技有限公司</a></p><p><span>聯(lián)系人：</span>劉路</p><p><span>郵箱: </span>6259193@qq.com</p><p><span>電話: </span>15813866860</p><p><span>傳真: </span>0755_</p><p><span>網(wǎng)址: </span>http://www.run-five.com</p><p><span>手機(jī): </span>0755-89884486</p><p><span>地址: </span>龍崗街道南聯(lián)瑞記路1號恒?？萍紙@A棟4樓</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="hvnpb8r" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="slik8hi" class="box"><p><p style="text-indent:25px">Pcba電路板短路現(xiàn)象。拿一塊板來割線（特別適合單/雙層板），割線后將每部分功能塊分別通電,逐步排除。使用短路定位分析儀器?如果有BGA芯片，由于所有焊點被芯片覆蓋看不見，而且又是多層板（4層以上），因此好在設(shè)計時將每個芯片的電源分割開，用磁珠或0歐電阻連接，這樣出現(xiàn)電源與地短路時，斷開磁珠檢測，湖北PCBA電路板生產(chǎn)商，湖北PCBA電路板生產(chǎn)商，很容易定位到某一芯片。由于BGA的焊接難度大，如果不是機(jī)器自動焊接，稍不注意就會把相鄰的電源與地兩個焊球短路（103或104），湖北PCBA電路板生產(chǎn)商。Pcba電路板焊接時不要亂甩烙鐵，如果把焊錫甩到芯片的焊腳上（特別是表貼元件），就不容易查到。湖北PCBA電路板生產(chǎn)商</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="湖北PCBA電路板生產(chǎn)商,PCBA電路板" src="https://tyunfile.71360.com/UploadFile/rzwz888/637303274233261719/8612272.png"></div><p style="text-indent:25px">pcba目前的測試方法主要有以下五種：1.手工視覺測試手工視覺測試是通過人的視覺與比較來確認(rèn)PCB上的元件貼裝，這種技術(shù)是使用為普遍的在線測試方法之一。但是隨著產(chǎn)量的增加和電路板及元件的縮小，這個方法越來越不適用了。低的預(yù)先成本和沒有測試夾具是它的主要優(yōu)點；同時，很高的長期成本、不連續(xù)的發(fā)覺、數(shù)據(jù)收集困難、無電氣測試和視覺上的局限也是這種方法的主要缺點。2.自動光學(xué)檢查（Automated Optical Inspection，AOI）這種測試方法也稱為自動視覺測試。湖北PCBA電路板生產(chǎn)商PCBA生產(chǎn)是一環(huán)扣著一環(huán)，需要對每一個工序進(jìn)行嚴(yán)格的控制。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="湖北PCBA電路板生產(chǎn)商,PCBA電路板" src="https://tyunfile.71360.com/UploadFile/rzwz888/637303274031806641/8097853.png"></div><p style="text-indent:25px">Pcba電路板焊接時不要亂甩烙鐵，如果把焊錫甩到芯片的焊腳上（特別是表貼元件），就不容易查到。發(fā)現(xiàn)有短路現(xiàn)象。拿一塊板來割線（特別適合單/雙層板），割線后將每部分功能塊分別通電,逐步排除。使用短路定位分析儀器如果有BGA芯片，由于所有焊點被芯片覆蓋看不見，而且又是多層板（4層以上），因此好在設(shè)計時將每個芯片的電源分割開，用磁珠或0歐電阻連接，這樣出現(xiàn)電源與地短路時，斷開磁珠檢測，很容易定位到某一芯片。由于BGA的焊接難度大，如果不是機(jī)器自動焊接，稍不注意就會把相鄰的電源與地兩個焊球短路。</p><p style="text-indent:25px">Pcba在線的測試電壓電流是否符合設(shè)計要求專業(yè)PCBA加工一般來說每塊PCBA通電之后都會有各種電壓差、電流傳導(dǎo)等數(shù)據(jù)，并且設(shè)計工程師會預(yù)留一些測試點，將這些測試點和ICT或FCT進(jìn)行連接，就可以檢測出板子的一個電壓電流數(shù)據(jù)。二、燒錄MCU程序后進(jìn)行輸入、輸出檢測當(dāng)PCBA板燒錄MCU程序后，用戶執(zhí)行動作（比如長按開關(guān)3秒鐘），MCU會發(fā)出邏輯命令控制電路的開關(guān)，從而實現(xiàn)設(shè)計要求。此種情況下，PCBA在線測試就可以檢測這種動作輸入輸出是否正常。pcba電感器電感線圈簡稱電感，具有存儲磁能的作用。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="湖北PCBA電路板生產(chǎn)商,PCBA電路板" src="https://tyunfile.71360.com/UploadFile/rzwz888/637303274150800781/3060340.png"></div><p style="text-indent:25px">PCBA電路板清洗在PCB抄板、PCB生產(chǎn)加工等各個環(huán)節(jié)都有涉及,關(guān)于電路板清洗質(zhì)量或者效果的評估標(biāo)準(zhǔn),專業(yè)的工程師及加工工廠都需要遵循一定的原則,在此,我們提供PCB電路板清洗效果的正確評估標(biāo)準(zhǔn)和終檢查方法供大家參考。一、原材料質(zhì)量要求1、錫鉛焊料壓力加工錫鉛焊料的化學(xué)成分需符合GB/T 31311的要求。鑄造錫鉛焊料的化學(xué)成分需符合GB/T 8012的要求。2、焊劑關(guān)于焊劑質(zhì)量,應(yīng)該從焊劑的外觀、物理穩(wěn)定性和顏色、不揮發(fā)物含量、粘性和密度、水萃取電阻值、鹵素含量、固體含量、助焊性、干燥度、銅鏡腐蝕性、絕緣電阻、離子污染等方面進(jìn)行檢測。pcba自動光學(xué)檢查通常在回流前后使用，是較新的確認(rèn)制造的方法。山東刻印PCBA電路板研發(fā)</p><p style="text-indent:25px">在PCBA貼片加工過程中，靜電一直是造成芯片損壞的一大重要因素。湖北PCBA電路板生產(chǎn)商</p><p style="text-indent:25px">pcba圖形電鍍。目的：圖形電鍍是在線路圖形裸露的銅皮上或孔壁上電鍍一層達(dá)到要求厚度的銅層與要求厚度的金鎳或錫層。流程：上板→除油→水洗二次→微蝕→水洗→酸洗→鍍銅→水洗→浸酸→鍍錫→水洗→下板。退膜。目的：用NaOH溶液退去抗電鍍覆蓋膜層使非線路銅層裸露出來。流程：水膜：插架→浸堿→沖洗→擦洗→過機(jī)；干膜：放板→過機(jī)。蝕刻。目的：蝕刻是利用化學(xué)反應(yīng)法將非線路部位的銅層腐蝕去。綠油。目的：綠油是將綠油菲林的圖形轉(zhuǎn)移到板上，起到保護(hù)線路和阻止焊接零件時線路上錫的作用。湖北PCBA電路板生產(chǎn)商</p><p style="text-indent:25px">深圳市潤澤五洲電子科技有限公司致力于電子元器件，是一家生產(chǎn)型的公司。公司自成立以來，以質(zhì)量為發(fā)展，讓匠心彌散在每個細(xì)節(jié)，公司旗下方案設(shè)計，電路板加工，PCBA OEM，SMT貼片深受客戶的喜愛。公司將不斷增強(qiáng)企業(yè)重點競爭力，努力學(xué)習(xí)行業(yè)知識，遵守行業(yè)規(guī)范，植根于電子元器件行業(yè)的發(fā)展。潤澤五洲憑借創(chuàng)新的產(chǎn)品、專業(yè)的服務(wù)、眾多的成功案例積累起來的聲譽和口碑，讓企業(yè)發(fā)展再上新高。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/1674759.html</p></div></div></div></div></div><div id="8hnhcj4" class="page-right twoColRt"><div id="373zizn" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="hf87iaz" 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" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)</p></a></div><div id="ktfmija" class="recomPic likePro"><a 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