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:
Dec. 26, 2000
Filed:
May. 06, 1999
Applicant:
Inventor:
Jyh-Ren Wu, Taipei, TW;
Assignee:
Worldwide Semiconductor Manufacturing Corp., Hsinchu, TW;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
438275 ;
Abstract
A method of manufacturing mask read-only-memory. The method includes forming a plurality of first and second active regions in designated locations on a substrate. Each first and second active region has a channel region and a source/drain region on both side of the channel. Subsequently, shallow trench oxide are formed within the channel regions of the first active regions, and then source/drain terminals are formed in the respective source/drain regions of first and second active regions. Finally, a gate terminal is formed over the channel region.