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经营范围
发明名称
SEMICONDUCTOR DEVICE
摘要
申请公布号
JPH0342831(A)
申请公布日期
1991.02.25
申请号
JP19890178502
申请日期
1989.07.11
申请人
SEIKO EPSON CORP
发明人
HIRAKAWA KAZUYOSHI
分类号
H01L21/314;H01L21/318
主分类号
H01L21/314
代理机构
代理人
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