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.:
Date of Patent:
May. 14, 2002
Filed:
Aug. 16, 2001
Applicant:
Inventor:
Chien-Chih Fu, Hsin-Chu, TW;
Assignee:
AMIC Technology (Taiwan) Inc., Hsin-Chu Hsien, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 5/06 ;
U.S. Cl.
CPC ...
G11C 5/06 ;
Abstract
A NOR type mask ROM includes a plurality of main bit lines formed in parallel with each other, a plurality of first sub-bit lines connected to the main bit lines through bit line contacts, a plurality of T-shaped second sub-bit lines each having a vertical arm formed in parallel with the main bit lines, and a horizontal arm formed in perpendicular with the vertical arm, and a plurality of third sub-bit lines each formed in parallel with the main bit lines and between vertical arms of two neighboring second sub-bit lines.