CA830434A - Method of making an optical mask - Google Patents

Method of making an optical mask

Info

Publication number
CA830434A
CA830434A CA830434A CA830434DA CA830434A CA 830434 A CA830434 A CA 830434A CA 830434 A CA830434 A CA 830434A CA 830434D A CA830434D A CA 830434DA CA 830434 A CA830434 A CA 830434A
Authority
CA
Canada
Prior art keywords
making
optical mask
mask
optical
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA830434A
Inventor
T. Lewis David
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
Publication date
Application granted granted Critical
Publication of CA830434A publication Critical patent/CA830434A/en
Expired legal-status Critical Current

Links

CA830434A Method of making an optical mask Expired CA830434A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA830434T

Publications (1)

Publication Number Publication Date
CA830434A true CA830434A (en) 1969-12-23

Family

ID=36307894

Family Applications (1)

Application Number Title Priority Date Filing Date
CA830434A Expired CA830434A (en) Method of making an optical mask

Country Status (1)

Country Link
CA (1) CA830434A (en)

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