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. 07, 1986
Filed:
Oct. 29, 1984
Applicant:
Inventors:
James A Topich, Centerville, OH (US);
Thomas E Cynkar, Sunnyvale, CA (US);
Raymond A Turi, Miamisburg, OH (US);
George C Lockwood, Dayton, OH (US);
Assignee:
NCR Corporation, Dayton, OH (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
357 235 ; 357 54 ;
Abstract
An EEPROM cell which is programmed to a 1 or .0. binary state regardless of the prior state of the cell, that is, without erasing. The cell construction includes silicon nitride capacitors between the floating gate and the programming electrodes which enhances the programming characteristics and the endurance and permits the use of a relatively simple double layer polysilicon process and semiconductor structure.