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:
May. 12, 1981
Filed:
Jan. 05, 1979
Daniel C Guterman, Houston, TX (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
A non-volatile semiconductor memory device of the electrically erasable type employs a floating gate which is programmed by application of high voltage across the source and drain so that hot electrons traverse the gate oxide. The floating gate is discharged by electron tunneling through an erase window which is separated from the control gate. An over-erase sensor transistor separate from the memory transistor prevents the floating gate from being discharged below a point where the memory transistor will be depletion mode.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile