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. 13, 2007
Filed:
Jun. 27, 2005
Applicants:
Chi-cheng Hung, Hsinchu, TW;
Ling-yueh Chang, Hsinchu, TW;
Pwu-yueh Chung, Chunli, TW;
Inventors:
Assignee:
Lyontek Inc., Hsinchu, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C 5/06 (2006.01); G11C 8/00 (2006.01); G11C 11/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
Two memory areas on a wafer are coupled through pass transistors to double the memory capacity of each area and can be sawed to yield two memory chips each with single memory area. A pair of pass transistors are used to couple each dedicated functional pad in both memory areas, when the pass transistors are turned on. The connection between the pass transistor pair can be sawed through to yield single capacity memory dice. The memory capacity can be further increased by coupling more memory areas together with pass transistors.