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:
Nov. 05, 1991
Filed:
Apr. 04, 1990
Applicant:
Inventors:
Massimo Melanotte, Milan, IT;
Orio Bellezza, Curno, IT;
Assignee:
SGS-Thomson Microelectronics s.r.l., Agrate Brianza, IT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ; H01L / ; H01L / ; H01L / ;
U.S. Cl.
CPC ...
357 235 ; 357 231 ; 357 29 ; 357 55 ; 357 59 ;
Abstract
The UPROM memory cell comprises self-aligned lines of source and lines of drain obtained in a semiconductor substrate. It also comprises a strip of floating gate, a strip of dielectric and a strip of barrier polysilicon, each of these strips being provided with a respective pair of small lateral fins. The UPROM cell lastly comprises a control gate superimposed over and self-aligned with the floating gate.