Patent search ap:("IBM") AND inv:"LEONARD RICHARD A" Page 1

1.

发明授权
Photosensitive glass technique for forming contact holes in protective glass layers 失效
Title translation: 用于在保护玻璃层中形成接触孔的感光玻璃技术

公开(公告)号：US3542550A

公开(公告)日：1970-11-24

申请号：US3542550D

申请日：1966-09-30

Applicant: IBM

Inventor： CONRAD ERNEST E , ESCH RONALD P , HALLEN ROBERT L , LEONARD RICHARD A , PLISKIN WILLIAM A

IPC: H01L21/00 , H01L23/29 , H01L23/31 , H01L23/485 , G03C5/00 , H05K3/28

CPC classification number: H01L23/3157 , H01L21/00 , H01L23/291 , H01L23/485 , H01L2924/0002 , Y10S438/95 , H01L2924/00

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