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:
Jan. 06, 1998
Filed:
Jan. 14, 1997
Douglas J Cutter, Boise, ID (US);
Kurt D Beigel, Boise, ID (US);
Adrian E Ong, Santa Clara, CA (US);
Fan Ho, Boise, ID (US);
Patrick J Mullarkey, Meridian, ID (US);
Dien S Luong, Boise, ID (US);
Brett Debenham, Meridian, ID (US);
Kim M Pierce, Meridian, ID (US);
Micron Technology, Inc., Boise, ID (US);
Abstract
An antifuse bank includes a bank of self-decoupling anti fuse circuits. The anti fuse circuits are programmed according to a pattern of address bits by blowing antifuses corresponding to bits of the address. The antifuses are blown by applying a high voltage across the antifuse. As each antifuse is blown, its resistance drops and current through the antifuse increases. The self-decoupling circuit detects the increased current flow and, when the anti fuse resistance is sufficiently low, limits current flow through the anti fuse. The antifuse thus does not load the high voltage source as other antifuses are blown.