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:
Mar. 31, 2009
Filed:
Jul. 17, 2006
Loren L. Mclaury, Hillsboro, OR (US);
Loren L. McLaury, Hillsboro, OR (US);
Lattice Semiconductor Corporation, Hillsboro, OR (US);
Abstract
In one embodiment, a memory is provided that includes: a memory cell array adapted to be programmed with a positive voltage from a positive-negative node and to be erased with a negative voltage from the positive-negative node; a negative voltage blocking circuit; and a positive voltage source operable coupled to the negative voltage blocking circuit, the positive voltage source operable to provide the positive voltage to the positive-negative node through the negative voltage blocking circuit, wherein the negative voltage blocking circuit is adapted to prevent the negative voltage from coupling from the positive-negative node to the positive voltage source.