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. 30, 1999
Filed:
Mar. 20, 1998
Applicant:
Inventor:
Wayland Bart Holland, Dallas, TX (US);
Assignee:
Silicon Aquarius, Inc., , TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C / ;
U.S. Cl.
CPC ...
365149 ; 36518508 ; 365104 ;
Abstract
A method of permanently programming selected cells of dynamic random access memory cell array. First selected cell is programmed to a Logic 1 by grounding a first capacitor plate of the first cell, and applying a programming voltage to a second capacitor plate common to the cells of the array. A dielectric disposed between the first capacitor plate and the second capacitor plate breaks down, thereby shorting the first and second capacitor plates. A second selected cell is programmed to store a Logic 1 by allowing a first capacitor of the second cell to float during a period when the programming voltage is applied to the second capacitor plate.