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:
Jun. 17, 1986
Filed:
Mar. 29, 1984
Applicant:
Inventor:
Michel Betirac, Seyssinet, FR;
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
G11C / ;
U.S. Cl.
CPC ...
365154 ; 365182 ; 365202 ;
Abstract
The invention relates to a non-volatile static memory cell. The cell comprises a bistable flip-flop with four transistors, with two complementary outputs. Between the outputs is placed a non-volatile storage element comprising two complementary transistors in series, namely a p channel transistor and a n channel transistor, said transistors having a common floating grid and a common control grid. A charge injection zone is provided on the side of the source region on the n channel transistor. The region is connected to an output of the flip-flop, while the control grid is connected to the other output. Repositioning takes place without any reversal of the original state of the flip-flop.