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. 07, 1990
Filed:
Dec. 10, 1986
Applicant:
Inventors:
Roger G Stewart, Hillsborough Township, Somerset County, NJ (US);
Alfred C Ipri, Hopewell Township, Mercer County, NJ (US);
Louis S Napoli, Hamilton Township, Mercer County, NJ (US);
Assignee:
General Electric Company, Schenectady, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ; H01L / ;
U.S. Cl.
CPC ...
357 235 ; 357 54 ;
Abstract
A memory cell has a first capacitance between a floating gate and a channel region and a second capacitance between a control gate and the floating gate. The second capacitance is less than said first capacitance, preferably much less, and there is self-alignment in two directions, resulting in a compact cell. The floating gate can have a textured surface facing the control gate. The control gate can also shift the cell operation from the enhancement mode into the depletion mode.