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. 30, 2006
Filed:
Dec. 03, 2003
Applicants:
Chien-hung Chen, Sanchong, TW;
Shui-chin Huang, Tainan, TW;
Inventors:
Chien-Hung Chen, Sanchong, TW;
Shui-Chin Huang, Tainan, TW;
Assignee:
United Microelectronics Corp., Hisnchu, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C 16/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for programming a P-channel EEPROM having an N-well, a floating gate, a control gate, a P-type source region and a P-type drain region is provided. In the method, the N-well is grounded, a first positive voltage is applied to the control gate, a second positive voltage or a programming current is applied to the P-type source region, and a negative voltage is applied to the P-type drain region.