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发明名称
BLOCK MASK OF E-BEAM DIRECT WRITING APPARATUS CAPABLE OF PROLONGING LIFE TIME AND ITS MANUFACTURING METHOD
摘要
申请公布号
KR100475031(B1)
申请公布日期
2005.05.27
申请号
KR19980008353
申请日期
1998.03.12
申请人
发明人
分类号
H01L21/027;(IPC1-7):H01L21/027
主分类号
H01L21/027
代理机构
代理人
主权项
地址
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