发明名称 WAFER MARKING
摘要 <p>A wafer marking is disclosed, which is represented by a large number of soft marks incorporated into a surface of a wafer. The soft marks each have a depth of at least 4 mum, an internal diameter of at least 50 mum and, in a particularly advantageous manner, a minimum gradient their surface of 0.2. These depressions can be proded, using appropriate technology, with depths of up to mum.</p>
申请公布号 EP1002338(A1) 申请公布日期 2000.05.24
申请号 EP19980948693 申请日期 1998.07.30
申请人 INFINEON TECHNOLOGIES AG 发明人 MARX, ECKHARD;GERHARD, DETLEF;FRANKE, STEFFEN
分类号 H01L21/02;H01L23/544;H01L29/30;(IPC1-7):H01L23/544 主分类号 H01L21/02
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