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    • 4. 发明授权
    • Package substrate with testing pads on fine pitch traces
    • 封装衬底,测试垫在细间距迹线上
    • US09370097B2
    • 2016-06-14
    • US13783168
    • 2013-03-01
    • QUALCOMM Incorporated
    • Chin-Kwan KimKuiwon KangOmar James Bchir
    • H05K7/10H05K1/11G01R31/28H05K1/02H05K3/34
    • H05K1/111G01R31/2818H05K1/0268H05K3/3452H05K2201/10674Y10T29/49004Y10T29/49124Y10T29/4913
    • Some implementations provide a substrate that includes several traces, a solder resist layer covering the several traces, and a testing pad coupled to a trace from the several traces. The testing pad is at least partially exposed and at least partially free of the solder resist layer when a chip is coupled to the substrate. In some implementations, the several traces have a pitch that is 100 microns (μm) or less. In some implementations, the substrate is a package substrate. In some implementations, the package substrate is a package substrate on which a thermal compression flip chip is mounted during an assembly process. In some implementations, the testing pad is free of a direct connection with a bonding component of the chip when the chip is coupled to the substrate. In some implementations, the bonding component is one of a solder ball.
    • 一些实施方案提供了包括几条迹线的衬底,覆盖几条迹线的阻焊层,以及耦合到几条迹线的迹线的测试焊盘。 当芯片耦合到衬底时,测试焊盘至少部分地暴露并且至少部分地不含阻焊层。 在一些实施方案中,多个迹线具有100微米(μm)或更小的间距。 在一些实施方式中,衬底是封装衬底。 在一些实施方案中,封装衬底是在组装过程期间安装热压缩倒装芯片的封装衬底。 在一些实施方案中,当芯片耦合到衬底时,测试焊盘不与芯片的焊接部件直接连接。 在一些实施方式中,接合部件是焊球之一。