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. 02, 1999
Filed:
Jul. 18, 1997
Jahanshir J Javanifard, Sacramento, CA (US);
Jeffrey J Evertt, Orangevale, CA (US);
Intel Corporation, Santa Clara, CA (US);
Abstract
A negative voltage switching circuit in a nonvolatile memory includes a switching transistor coupled to an output of the negative voltage switching circuit and a first voltage source that has a voltage level substantially lower than zero volts. A pull-up circuit is coupled to a control terminal of the switching transistor and selectively to a second voltage source having a voltage level substantially above zero volts. The pull-up circuit applies the second voltage source to the control terminal of the switching transistor when the pull-up circuit is coupled to the second voltage source such that the switching transistor does not couple the first voltage source to the output. A pull-down circuit is coupled to the first voltage source and the control terminal of the switching transistor. The pull-down circuit applies the first voltage source to the control terminal of the switching transistor when the pull-up circuit is not coupled to the second voltage source such that the switching transistor couples the first voltage source to the output.