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              集成電路管腳整體平整度檢測-opto

              時間:2017-02-27      來源:蘇州迪森特      關鍵詞:蘇州迪森特      瀏覽量:984


              集成電路芯片管腳在插入印刷電路板后,需要檢測管腳是否全部就位,之后才會進入焊接流程。芯片管腳就位的整體平整度對電路板焊接質量至關重要。在先進的貼片機中,元器件的整體平整度可以通過激光三角反射式位移傳感器進行實時在線檢測。

               

              The term ?co-planarity“ describes theproper seating of the tips of fine-pitch device leads on the copper pads on aPCB prior to solder process. The co-planarity is a critical dimension for thequality of the soldered joints, because no reliable and correct soldering canbe done if there is a gap between the lead and the pad. In state of the artautomatic assembly machines the co-planarity of components is measured duringthe assembling process. The component to be measured is passed over a triangulationdisplacement sensor which has a laser beam that scans the row of pins.


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