发明名称 Probe card, test method and test system for semiconductor wafers
摘要 A probe card for testing a semiconductor wafer, a test method, and a test system employing the probe card are provided. The probe card includes: a substrate; patterns of pin contacts slidably mounted to the substrate; and a force applying member for biasing the pin contacts into electrical contact with die contacts on the wafer. In an illustrative embodiment the force applying member includes spring loaded electrical connectors in physical and electrical contact with the pin contacts. Alternately, the force applying member includes a compressible pad for multiple pin contacts, or separate compressible pads for each pin contact. A penetration depth of the pin contacts into the die contacts is controlled by selecting a spring force of the force applying member, and an amount of Z-direction overdrive of the pin contacts into the die contacts.
申请公布号 US6356098(B1) 申请公布日期 2002.03.12
申请号 US19990394960 申请日期 1999.09.10
申请人 MICRON TECHNOLOGY, INC. 发明人 AKRAM SALMAN;DOHERTY C. PATRICK;FARNWORTH WARREN M.;HEMBREE DAVID R.
分类号 G01R1/073;G01R31/28;(IPC1-7):G01R31/26;G01R31/02 主分类号 G01R1/073
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