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发明名称
VARIABLE AXIS IMMERSON LENS ELECTRON BEAM PROJECTION SYSTEM
摘要
申请公布号
EP0129681(B1)
申请公布日期
1988.11.17
申请号
EP19840105183
申请日期
1984.05.09
申请人
INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人
LANGNER, GUNTHER O.;PFEIFFER, HANS C.;STURANS, MARIS A.
分类号
G03C7/20;G03F7/20;H01J37/10;H01J37/141;H01L21/027;H01J37/147;H01J37/153;(IPC1-7):H01J37/141;H01J37/30
主分类号
G03C7/20
代理机构
代理人
主权项
地址
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