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. 05, 1990
Filed:
Jul. 14, 1989
Applicant:
Inventor:
Giuseppe Corda, Saronno, IT;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ; H01L / ; G11C / ;
U.S. Cl.
CPC ...
357 235 ; 357 233 ; 365185 ;
Abstract
The tunnelling area of a EEPROM memory device of the FLOTOX type is efficiently reduced in respect of the minimum areas obtained by means of current fabrication technologies, by forming the injection zone for the transfer of the electric charges by tunnel effect to an from the floating gate through an original self-aligned process, which allows to limit the dimensions of such a tunnelling area independently from the resolution limits of the available photolithographic technology.