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发明名称
SEMICONDUCTOR MEMORY DEVICE AND MANUFACTURE THEREOF
摘要
申请公布号
JPH04237169(A)
申请公布日期
1992.08.25
申请号
JP19910021591
申请日期
1991.01.21
申请人
RICOH CO LTD
发明人
MAARI KOUICHI
分类号
H01L21/8247;H01L27/115;H01L29/788;H01L29/792
主分类号
H01L21/8247
代理机构
代理人
主权项
地址
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