GB1277037A - Methods in or relating to photomasks - Google Patents

Methods in or relating to photomasks

Info

Publication number
GB1277037A
GB1277037A GB3341069A GB3341069A GB1277037A GB 1277037 A GB1277037 A GB 1277037A GB 3341069 A GB3341069 A GB 3341069A GB 3341069 A GB3341069 A GB 3341069A GB 1277037 A GB1277037 A GB 1277037A
Authority
GB
United Kingdom
Prior art keywords
photo
transparent
masks
silicate
july
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
GB3341069A
Other languages
English (en)
Inventor
Robert Eugene Kerwin
William Robert Sinclair
Miles Vincent Sullivan
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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Western Electric Co Inc filed Critical Western Electric Co Inc
Publication of GB1277037A publication Critical patent/GB1277037A/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03FPHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F1/00Originals for photomechanical production of textured or patterned surfaces, e.g., masks, photo-masks, reticles; Mask blanks or pellicles therefor; Containers specially adapted therefor; Preparation thereof
    • G03F1/54Absorbers, e.g. of opaque materials

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Preparing Plates And Mask In Photomechanical Process (AREA)
  • Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
GB3341069A 1968-07-03 1969-07-02 Methods in or relating to photomasks Expired GB1277037A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US74220368A 1968-07-03 1968-07-03

Publications (1)

Publication Number Publication Date
GB1277037A true GB1277037A (en) 1972-06-07

Family

ID=24983884

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3341069A Expired GB1277037A (en) 1968-07-03 1969-07-02 Methods in or relating to photomasks

Country Status (7)

Country Link
JP (1) JPS4919902B1 (enExample)
BE (1) BE735518A (enExample)
DE (1) DE1933034B2 (enExample)
FR (1) FR2012223A1 (enExample)
GB (1) GB1277037A (enExample)
NL (1) NL144090B (enExample)
SE (1) SE349874B (enExample)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3815978A (en) * 1972-06-20 1974-06-11 Ibm Durable see-through photoresist mask

Also Published As

Publication number Publication date
DE1933034A1 (de) 1970-02-05
JPS4919902B1 (enExample) 1974-05-21
NL144090B (nl) 1974-11-15
FR2012223A1 (enExample) 1970-03-13
NL6909925A (enExample) 1970-01-06
SE349874B (enExample) 1972-10-09
BE735518A (enExample) 1969-12-16
DE1933034B2 (de) 1971-06-24

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee