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US08823407B2 Test assembly for verifying heat spreader grounding in a production test 有权
用于在生产测试中验证散热器接地的测试组件

Test assembly for verifying heat spreader grounding in a production test
Abstract:
A test assembly (12) for testing a device (10) having a heat spreader (20), a package substrate (18) having a substrate ground (18G), and a grounding conductive segment (44A), includes (i) an input conductive segment (38) that is electrically connected to the heat spreader (20), (ii) a test board (28) having a board ground (30), and (iii) a control system (34) that is electrically coupled to the input conductive segment (38) and the board ground (30). During testing, the device (10) is positioned so that the substrate ground (18G) is electrically connected to the board ground (30). Additionally, the control system (34) directs a test current to one of the input conductive segment (38) and the board ground (30) to test the effectiveness of the grounding conductive segment (44A) including a first electrical interface (45A).
Abstract(Chinese):

一种用于测试具有散热器（20）的装置（10），具有衬底接地（18G）的封装衬底（18）和接地导电段（44A））的测试组件（12），包括：（i） 导电段（38），其电连接到散热器（20），（ii）具有板接地（30）的测试板（28），和（iii）电耦合到所述散热器 输入导电段（38）和板接地（30）。 在测试期间，设备（10）被定位成使得基板接地（18G）电连接到板接地（30）。 此外，控制系统（34）将测试电流引导到输入导电段（38）和板接地（30）之一，以测试包括第一电接口（45A）的接地导电段（44A）的有效性。

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