Patent search ap:("IBM") AND inv:"NORTH WILLIAM DAVID" Page 1

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发明专利
未知

公开(公告)号：DE2419704A1

公开(公告)日：1974-11-21

申请号：DE2419704

申请日：1974-04-24

Applicant: IBM

Inventor： COLLINS ROBERT HENRY , LEVINE RICHARD F , NORTH WILLIAM DAVID , O'ROURKE GERALD DENNIS , PARKER GERALD ROGER

IPC: H01L29/78 , H01L21/283 , H01L29/00 , H01L29/51 , H01L29/76 , H01L11/14

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