发明名称 METHOD FOR WAFER TEST AND PROBE CARD FOR THE SAME
摘要 A method of testing a wafer capable of minimizing the asymmetrical thermal deformation of a probe card when a wafer is tested using a probe card and of minimizing the number of times of tests to effectively test a large area wafer and a probe card for the same is presented. For the wafer test method for testing semiconductor chips on a wafer using a probe card, the method includes creating virtual repeating units corresponding to N semiconductor chips, wherein the N is natural number larger than or equal to 2, arranging the plurality of repeating units on the wafer and moving the probe card or the wafer N times and testing the semiconductor chips on a wafer, wherein the semiconductor chips in the repeating units are sequentially tested one by one per each touchdown. Also, the probe cards to realize above mentioned method have been described.
申请公布号 US2010207652(A1) 申请公布日期 2010.08.19
申请号 US20080734049 申请日期 2008.10.08
申请人 AMST CO., LTD. 发明人 CHUNG IN BUHM;SONG BYUNG CHANG;KIM DONG IL
分类号 G01R31/02 主分类号 G01R31/02
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