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JPS5487478A - Photo mask blank substrate - Google Patents

Photo mask blank substrate

Info

Publication number
JPS5487478A
JPS5487478A JP15584477A JP15584477A JPS5487478A JP S5487478 A JPS5487478 A JP S5487478A JP 15584477 A JP15584477 A JP 15584477A JP 15584477 A JP15584477 A JP 15584477A JP S5487478 A JPS5487478 A JP S5487478A
Authority
JP
Japan
Prior art keywords
substrate
mask blank
conductive substance
photo mask
blank substrate
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.)
Pending
Application number
JP15584477A
Other languages
English (en)
Inventor
Masaki Ito
Yoshitake Onishi
Kenji Mizuno
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP15584477A priority Critical patent/JPS5487478A/ja
Publication of JPS5487478A publication Critical patent/JPS5487478A/ja
Pending legal-status Critical Current

Links

Landscapes

  • Preparing Plates And Mask In Photomechanical Process (AREA)
  • Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
  • Electron Beam Exposure (AREA)
JP15584477A 1977-12-23 1977-12-23 Photo mask blank substrate Pending JPS5487478A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15584477A JPS5487478A (en) 1977-12-23 1977-12-23 Photo mask blank substrate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15584477A JPS5487478A (en) 1977-12-23 1977-12-23 Photo mask blank substrate

Publications (1)

Publication Number Publication Date
JPS5487478A true JPS5487478A (en) 1979-07-11

Family

ID=15614721

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15584477A Pending JPS5487478A (en) 1977-12-23 1977-12-23 Photo mask blank substrate

Country Status (1)

Country Link
JP (1) JPS5487478A (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57169240A (en) * 1981-04-09 1982-10-18 Nec Corp Manufacture of mask for x-ray exposure
EP0773477A1 (en) * 1990-09-21 1997-05-14 Dai Nippon Printing Co., Ltd. Phase shift layer - containing photomask, and its production and correction

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57169240A (en) * 1981-04-09 1982-10-18 Nec Corp Manufacture of mask for x-ray exposure
EP0773477A1 (en) * 1990-09-21 1997-05-14 Dai Nippon Printing Co., Ltd. Phase shift layer - containing photomask, and its production and correction

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