Patent search ap:("BELL TELEPHONE LABOR INC") AND inv:"NOLL WALTER S" Page 1

1.

发明授权
Process of selective etching with resist preparation 失效
Title translation: 用抗蚀剂制备的选择性蚀刻工艺

公开(公告)号：US3012920A

公开(公告)日：1961-12-12

申请号：US78502259

申请日：1959-01-05

Applicant: BELL TELEPHONE LABOR INC

Inventor： HOWARD CHRISTENSEN , NOLL WALTER S

IPC: H01L21/308

CPC classification number: H01L21/3081

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