The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 7045256 B1

PDF
Full Text
Expired
Date of Patent:
May. 16, 2006

Filed:

Apr. 29, 2003
Applicants:

Same-ting Chen, Hsinchu, TW;

Zy Ying Lin, Hsinchu, TW;

Inventors:

Same-Ting Chen, Hsinchu, TW;

Zy Ying Lin, Hsinchu, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03F 9/00 (2006.01); G03C 5/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method is provided for repairing photolithographic exposure masks. A focused ion-beam exposure of the surface of the exposure mask is used to purposely 'damage' this surface over the area where opaque or light-blocking material is required to be present.


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