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:
Aug. 04, 1998
Filed:
Jan. 02, 1997
Applicant:
Inventor:
John M Caywood, Sunnyvale, CA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C / ;
U.S. Cl.
CPC ...
36518506 ; 365149 ; 36518527 ;
Abstract
P channel EEPROM cells are designed for integration into arrays written with single polarity signals developed from small, low power charge pumps. These cells reduce the additional masking steps that must be added to a CMOS logic process for EEPROM to only one additional step. The novel cells of this invention enable the array to function with a V.sub.PP about 2 V less than that required by an N channel EEPROM cell, with similar writing speed and tunnel oxide thickness.