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发明名称
摘要
申请公布号
JPS5247421(Y2)
申请公布日期
1977.10.27
申请号
JP19720080448U
申请日期
1972.07.06
申请人
发明人
分类号
H01L23/48;H01L21/52;H01L23/08;H01L23/28;H01L31/02;(IPC1-7):H01L23/08
主分类号
H01L23/48
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