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:
Mar. 15, 1994
Filed:
Aug. 22, 1991
Applicant:
Inventor:
Gregg R Josephson, Aloha, OR (US);
Assignee:
Lattice Semiconductor Corporation, Hillsboro, OR (US);
Primary Examiner:
Int. Cl.
CPC ...
G11C / ;
U.S. Cl.
CPC ...
365185 ; 36518909 ; 3072962 ; 307469 ;
Abstract
The apparent voltage used to program an EEPROM cell is increased by applying a negative voltage to the memory control gate of the sense transistor in the cell. This method is applicable to devices in which the substrate is negatively biased.