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. 25, 1996
Filed:
May. 17, 1995
Genda J Hu, Sunnyvale, CA (US);
Cypress Semiconductor Corp., San Jose, CA (US);
Abstract
A method is described for eliminating overerasure in a nonvolatile memory that includes a plurality of memory cells, each having a control gate, a floating gate, a drain, and a source. The nonvolatile memory is electrically erased until each of the plurality of memory cells has a threshold voltage below a predetermined erased voltage state. The nonvolatile memory then undergoes an equalization programming operation by applying an equalization programming voltage to the control gate of each of the plurality of memory cells such that the threshold voltage of each of the plurality of memory cells is saturated to the predetermined erased voltage state. The equalization programming voltage determines the predetermined erased voltage state. An apparatus for eliminating overerasure in the nonvolatile memory during erasing is also described.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile