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行業(yè)新聞新聞中心 > 行業(yè)新聞 > PCBA板檢測方法大全    

PCBA板檢測方法大全

點擊數(shù):1  發(fā)布日期:2021/5/14

<span style="background: white; color: rgb(42, 51, 60); font-family: 宋體; mso-ascii-theme-font: minor-fareast; mso-fareast-theme-font: minor-fareast; mso-hansi-theme-font: minor-fareast; mso-bidi-font-family: "Segoe UI";">由于目前SMT技術(shù)的不斷成熟,PCBA組裝加工過程中的組件變得越來越小,使PCBA具有更強大的功能。同時,也為測試和檢驗帶來了巨大得挑戰(zhàn)。測試是確保將高質(zhì)量PCBA產(chǎn)品交付給客戶至關(guān)重要的步驟,檢驗和測試可以減輕加工風(fēng)險。以下是<span style="background: white; color: rgb(98, 168, 234); text-decoration: none; mso-bidi-font-family: "Segoe UI"; text-underline: none;">PCBA<span lang="EN-US" style="background: white; color: rgb(98, 168, 234); text-decoration: none; mso-bidi-font-family: "Segoe UI"; text-underline: none;">加工<span style="background: white; color: rgb(42, 51, 60); font-family: 宋體; mso-ascii-theme-font: minor-fareast; mso-fareast-theme-font: minor-fareast; mso-hansi-theme-font: minor-fareast; mso-bidi-font-family: "Segoe UI";">行業(yè)的幾種測試方法集錦。

<span lang="EN-US" style="color: rgb(55, 71, 79); font-family: 宋體; font-weight: normal; mso-ascii-theme-font: minor-fareast; mso-fareast-theme-font: minor-fareast; mso-hansi-theme-font: minor-fareast; mso-bidi-font-family: "Segoe UI";">1<span style="color: rgb(55, 71, 79); font-family: 宋體; font-weight: normal; mso-ascii-theme-font: minor-fareast; mso-fareast-theme-font: minor-fareast; mso-hansi-theme-font: minor-fareast; mso-bidi-font-family: "Segoe UI";">、手動目視檢查

<span style="color: rgb(42, 51, 60); mso-ascii-theme-font: minor-fareast; mso-fareast-theme-font: minor-fareast; mso-hansi-theme-font: minor-fareast; mso-bidi-font-family: "Segoe UI"; mso-ascii-font-family: 宋體; mso-fareast-font-family: 宋體; mso-hansi-font-family: 宋體;">目視檢查可以在PCBA過程的每個步驟中實現(xiàn)。PCBA組裝手工目檢是PCBA質(zhì)檢中最原始的方法,僅僅只用眼睛和放大鏡檢查PCBA板的電路和電子元器件的焊接情況,如焊接方式,焊點是否橋接,是否少焊和出現(xiàn)焊接不完整性。在目檢中放大鏡是基礎(chǔ)工具,同時可以使用金屬針檢查IC引線上的焊接不完整性。

<span lang="EN-US" style="color: rgb(55, 71, 79); font-family: 宋體; font-weight: normal; mso-ascii-theme-font: minor-fareast; mso-fareast-theme-font: minor-fareast; mso-hansi-theme-font: minor-fareast; mso-bidi-font-family: "Segoe UI";">2<span style="color: rgb(55, 71, 79); font-family: 宋體; font-weight: normal; mso-ascii-theme-font: minor-fareast; mso-fareast-theme-font: minor-fareast; mso-hansi-theme-font: minor-fareast; mso-bidi-font-family: "Segoe UI";">、在線測試儀(ICT

<span style="color: rgb(42, 51, 60); mso-ascii-theme-font: minor-fareast; mso-fareast-theme-font: minor-fareast; mso-hansi-theme-font: minor-fareast; mso-bidi-font-family: "Segoe UI"; mso-ascii-font-family: 宋體; mso-fareast-font-family: 宋體; mso-hansi-font-family: 宋體;">在線測試儀因其出色的測試和檢驗性能在PCBA加工行業(yè)中被廣泛應(yīng)用。ICT幾乎可以在PCBA中找出焊接和組件的問題。它具有高速度,高穩(wěn)定性。其中電探針測試填充印刷電路板(PCB),檢查短路,開路,電阻,電容和其他基本量,以顯示組件是否正確制造。

<span lang="EN-US" style="color: rgb(55, 71, 79); font-family: 宋體; font-weight: normal; mso-ascii-theme-font: minor-fareast; mso-fareast-theme-font: minor-fareast; mso-hansi-theme-font: minor-fareast; mso-bidi-font-family: "Segoe UI";">3<span style="color: rgb(55, 71, 79); font-family: 宋體; font-weight: normal; mso-ascii-theme-font: minor-fareast; mso-fareast-theme-font: minor-fareast; mso-hansi-theme-font: minor-fareast; mso-bidi-font-family: "Segoe UI";">、自動光學(xué)檢測(AOI

<span style="color: rgb(42, 51, 60); mso-ascii-theme-font: minor-fareast; mso-fareast-theme-font: minor-fareast; mso-hansi-theme-font: minor-fareast; mso-bidi-font-family: "Segoe UI"; mso-ascii-font-family: 宋體; mso-fareast-font-family: 宋體; mso-hansi-font-family: 宋體;">自動光學(xué)檢測是一種非接觸式的測試方法。自動光學(xué)檢測在檢驗中起著重要的作用。自動光學(xué)檢測是印刷電路板制造過程中的自動目視檢查,其中相機自動掃描被測PCBA板的災(zāi)難性故障(例如缺失部件)和質(zhì)量缺陷(例如圓角尺寸或形狀或組件偏斜)。

<span lang="EN-US" style="color: rgb(55, 71, 79); font-family: 宋體; font-weight: normal; mso-ascii-theme-font: minor-fareast; mso-fareast-theme-font: minor-fareast; mso-hansi-theme-font: minor-fareast; mso-bidi-font-family: "Segoe UI";">4<span style="color: rgb(55, 71, 79); font-family: 宋體; font-weight: normal; mso-ascii-theme-font: minor-fareast; mso-fareast-theme-font: minor-fareast; mso-hansi-theme-font: minor-fareast; mso-bidi-font-family: "Segoe UI";">、自動光學(xué)檢測(AXI

<span style="color: rgb(42, 51, 60); mso-ascii-theme-font: minor-fareast; mso-fareast-theme-font: minor-fareast; mso-hansi-theme-font: minor-fareast; mso-bidi-font-family: "Segoe UI"; mso-ascii-font-family: 宋體; mso-fareast-font-family: 宋體; mso-hansi-font-family: 宋體;">對于廣泛使用BGACSP,像ICT這樣的典型檢測方法無法檢查組件埋入的焊點。AXI能夠測試未對準,缺少球和焊料沉積。AXI利用X射線穿透固體東西來捕捉他們的照片。它可以分為兩種類型:2D3D。

<span lang="EN-US" style="color: rgb(55, 71, 79); font-family: 宋體; font-weight: normal; mso-ascii-theme-font: minor-fareast; mso-fareast-theme-font: minor-fareast; mso-hansi-theme-font: minor-fareast; mso-bidi-font-family: "Segoe UI";">5<span style="color: rgb(55, 71, 79); font-family: 宋體; font-weight: normal; mso-ascii-theme-font: minor-fareast; mso-fareast-theme-font: minor-fareast; mso-hansi-theme-font: minor-fareast; mso-bidi-font-family: "Segoe UI";">、功能電路測試

<span style="color: rgb(42, 51, 60); mso-ascii-theme-font: minor-fareast; mso-fareast-theme-font: minor-fareast; mso-hansi-theme-font: minor-fareast; mso-bidi-font-family: "Segoe UI"; mso-ascii-font-family: 宋體; mso-fareast-font-family: 宋體; mso-hansi-font-family: 宋體;">功能電路測試是PCBA產(chǎn)品上市前的最后一次檢測。與其他檢測(如AOIAXIICT)不同,FCT旨在使UUT(被測單元)在模擬環(huán)境下工作,并使用輸出數(shù)據(jù)檢查其實際性能。

<span lang="EN-US" style="color: rgb(55, 71, 79); font-family: 宋體; font-weight: normal; mso-ascii-theme-font: minor-fareast; mso-fareast-theme-font: minor-fareast; mso-hansi-theme-font: minor-fareast; mso-bidi-font-family: "Segoe UI";">6<span style="color: rgb(55, 71, 79); font-family: 宋體; font-weight: normal; mso-ascii-theme-font: minor-fareast; mso-fareast-theme-font: minor-fareast; mso-hansi-theme-font: minor-fareast; mso-bidi-font-family: "Segoe UI";">、樣品檢驗

<span style="color: rgb(42, 51, 60); mso-ascii-theme-font: minor-fareast; mso-fareast-theme-font: minor-fareast; mso-hansi-theme-font: minor-fareast; mso-bidi-font-family: "Segoe UI"; mso-ascii-font-family: 宋體; mso-fareast-font-family: 宋體; mso-hansi-font-family: 宋體;">在批量生產(chǎn)和組裝之前,PCB制造商和裝配商通常會進行首樣檢查,以檢查SMT設(shè)備是否已正確準備,以便在批量生產(chǎn)中可以避免真空噴嘴或排列問題,導(dǎo)致PCBA板生產(chǎn)出現(xiàn)問題,這被稱為第一件檢驗。

<span lang="EN-US" style="color: rgb(55, 71, 79); font-family: 宋體; font-weight: normal; mso-ascii-theme-font: minor-fareast; mso-fareast-theme-font: minor-fareast; mso-hansi-theme-font: minor-fareast; mso-bidi-font-family: "Segoe UI";">7<span style="color: rgb(55, 71, 79); font-family: 宋體; font-weight: normal; mso-ascii-theme-font: minor-fareast; mso-fareast-theme-font: minor-fareast; mso-hansi-theme-font: minor-fareast; mso-bidi-font-family: "Segoe UI";">、飛針測試儀

<span style="color: rgb(42, 51, 60); mso-ascii-theme-font: minor-fareast; mso-fareast-theme-font: minor-fareast; mso-hansi-theme-font: minor-fareast; mso-bidi-font-family: "Segoe UI"; mso-ascii-font-family: 宋體; mso-fareast-font-family: 宋體; mso-hansi-font-family: 宋體;">飛針探頭適用于需要昂貴檢測費用的高復(fù)雜度PCB的檢查。飛針的設(shè)計和檢查可以在一天內(nèi)完成,組裝成本相對較低。它能夠檢查安裝在PCB上的部件的開路,短路和方向。此外,它在識別組件布局和對齊方面效果很好。

<span lang="EN-US" style="color: rgb(55, 71, 79); font-family: 宋體; font-weight: normal; mso-ascii-theme-font: minor-fareast; mso-fareast-theme-font: minor-fareast; mso-hansi-theme-font: minor-fareast; mso-bidi-font-family: "Segoe UI";">8<span style="color: rgb(55, 71, 79); font-family: 宋體; font-weight: normal; mso-ascii-theme-font: minor-fareast; mso-fareast-theme-font: minor-fareast; mso-hansi-theme-font: minor-fareast; mso-bidi-font-family: "Segoe UI";">、制造缺陷分析儀(ManufacturingDefect Analyzer,MDA

<span lang="EN-US" style="color: rgb(42, 51, 60); mso-ascii-theme-font: minor-fareast; mso-fareast-theme-font: minor-fareast; mso-hansi-theme-font: minor-fareast; mso-bidi-font-family: "Segoe UI"; mso-ascii-font-family: 宋體; mso-fareast-font-family: 宋體; mso-hansi-font-family: 宋體;">MDA<span style="color: rgb(42, 51, 60); mso-ascii-theme-font: minor-fareast; mso-fareast-theme-font: minor-fareast; mso-hansi-theme-font: minor-fareast; mso-bidi-font-family: "Segoe UI"; mso-ascii-font-family: 宋體; mso-fareast-font-family: 宋體; mso-hansi-font-family: 宋體;">的目的只是對板進行直觀的測試,以揭示制造缺陷。由于大多數(shù)制造缺陷是簡單的連接問題,所以MDA僅限于測量連續(xù)性。通常,測試儀將能夠檢測電阻,電容和晶體管的存在。還可以使用保護二極管來實現(xiàn)集成電路的檢測,以指示組件是否正確放置。

<span lang="EN-US" style="color: rgb(51, 51, 51); font-family: 宋體; font-size: 18pt; mso-ascii-theme-font: minor-fareast; mso-fareast-theme-font: minor-fareast; mso-hansi-theme-font: minor-fareast; mso-bidi-font-family: "Segoe UI"; mso-font-kerning: 18.0pt;"> 

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