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发明名称
WAFER HEIGHT CORRECTION SYSTEM FOR FOCUSED BEAM SYSTEM
摘要
申请公布号
EP0148856(B1)
申请公布日期
1988.07.27
申请号
EP19840902184
申请日期
1984.05.21
申请人
HUGHES AIRCRAFT COMPANY
发明人
REEDS, JOHN, W.
分类号
H01J37/20;H01J37/21;H01J37/30;H01L21/027;H01L21/68;(IPC1-7):H01J37/20
主分类号
H01J37/20
代理机构
代理人
主权项
地址
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