发明名称 WAFER FOR DAMAGE EVALUATION AND WAFER DAMAGE EVALUATING METHOD
摘要 PROBLEM TO BE SOLVED: To provide a wafer for damage evaluation and a wafer damage evaluating method wherein the damage of the wafer, which is accompanied by the working of a semiconductor device which employs electrically charged particles, is evaluated at a low cost. SOLUTION: A multilayer film having photochromic effect, and a metal film connected to the multilayer film and insulated from the wafer are formed at a part on the wafer to optically evaluate a damaged part produced upon working employing the wafer. COPYRIGHT: (C)2004,JPO
申请公布号 JP2004031465(A) 申请公布日期 2004.01.29
申请号 JP20020182321 申请日期 2002.06.24
申请人 HITACHI LTD 发明人 OMOTO YUTAKA
分类号 H01L21/66;(IPC1-7):H01L21/66 主分类号 H01L21/66
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