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:
Apr. 14, 1998
Filed:
Mar. 06, 1997
Constantin Papadas, Grenoble, FR;
Bernard Guillaumot, Le Fontanil, FR;
SGS-Thomson Microelectronics S.A., Saint Genis, FR;
Abstract
An electrically programmable cell comprises a substrate of the first conductivity type having a channel region, a control gate on a first insulating layer above the channel region, a source region and a drain region of a second conductivity type, on both sides of the channel region, at least the drain region including a low-doped region adjacent to the channel, a floating gate on a second insulating layer above at least a portion of said low-doped region. The thickness of the second insulating layer is lower than the thickness of the first insulating layer and is low enough for having charge transfers through tunnel effect.