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:
Oct. 18, 2005
Filed:
Dec. 01, 2003
Applicants:
Chin-tien Yang, Hsin-Chu, TW;
Mu-yi Lin, Hsin-Chu, TW;
Yu-wei Tseng, Hsin-Chu, TW;
Min CA, Hsin-Chu, TW;
Yu-hua Lee, Hsin-Chu, TW;
Inventors:
Chin-Tien Yang, Hsin-Chu, TW;
Mu-Yi Lin, Hsin-Chu, TW;
Yu-Wei Tseng, Hsin-Chu, TW;
Min Ca, Hsin-Chu, TW;
Yu-Hua Lee, Hsin-Chu, TW;
Assignee:
Taiwan Semiconductor Manufacturing Company, Ltd., Hsin-Chu, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L027/148 ;
U.S. Cl.
CPC ...
Abstract
A dual bit ROM multilayered structure with improved write and erase functions and a method of manufacturing is disclosed. The structure includes a pair of floating gates at the middle or nitride layer to better define the two locations of electrons representing the dual data bits collected in the middle layer.