发明名称 DIE SORTING SYSTEM
摘要 A wafer of semiconductor devices is tested to determine the quality of each device. The test data with respect to each die is electro-optically encoded and photographically recorded in a pattern corresponding to the die pattern on the wafer. Upon completion of the testing and recording operations the wafer is scored, mounted on a flexible pressure sensitive adhesive web and broken so as to separate the dies from one another while maintaining their original orientation. The dice and their respective test record are then mounted on a common frame, side by side, so that each die and its test data are readily matched. The frame is then mounted on a die sorting mechanism comprised of an XY indexing table which indexes the wafer die by die through a removal station and the film indexed through an electro-optical reader where the test data is read out to designate the die to a selected delivery station.
申请公布号 US3702923(A) 申请公布日期 1972.11.14
申请号 USD3702923 申请日期 1970.11.27
申请人 TELEDYNE INC. 发明人 MORDECHAI WIESLER;VIRGIL MARTINONIS;JOHN S. MACINTYRE
分类号 B07C5/344;G01R31/28;(IPC1-7):G06K7/10 主分类号 B07C5/344
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