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公开(公告)号：US3524249A
公开(公告)日：1970-08-18
申请号：US3524249D
申请日：1967-10-05
Applicant: NIPPON ELECTRIC CO
Inventor： HAMADA TOSHIO , SATO KOZABURO
IPC: H01L21/50 , H01L23/495 , H01L1/10
CPC classification number: H01L21/50 , H01L23/49541 , H01L2924/0002 , Y10T29/49121 , H01L2924/00
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