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Method and apparatus for engineering a testability interposer for testing sockets and connectors on printed circuit boards
Method and apparatus for engineering a testability interposer for testing sockets and connectors on printed circuit boards
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机译:用于设计用于测试印刷电路板上的插座和连接器的可测试插入器的方法和设备
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摘要
A method and apparatus is presented for gaining socket testability through the use of a capacitive interposer engineered to create capacitive coupling between signal nodes of a circuit assembly that the tester has access to and nodes of the socket that would not otherwise have any coupling to a testable signal node of the socket. Generally, coupling capacitance is engineered into the interposer by trace and via routing between the signal node of the socket and a location in close proximity to the inaccessible socket node such that their proximity to each other couples them together.
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