Title:
AREA EFFICIENT METHOD FOR PROGRAMMING ELECTRICAL FUSES
Document Type and Number:
WIPO Patent Application WO2002033707
Kind Code:
A3
Abstract:
A circuit for programming electrical fuses, in accordance with the present invention, includes a shift register (12) including a plurality of latches (16). Each latch has a corresponding switch (22) and a corresponding electrical fuse (24). A bit generator (208) generates a single bit of a first state and all other bits of a second state. The bit generator propagates the generated bits into the shift register in accordance with a clock signal (206). Each switch enables conduction through the corresponding electrical fuse in accordance with the generated bits stored in the corresponding latch. A blow voltage line (28) connects to the electrical fuses. The blow voltage line is activated to blow fuses in accordance with programming data (202) such that the electrical fuses are programmed in accordance with the programming data when the single bit of the first state is stored in the latch corresponding to the fuse to be programmed.
Inventors:
LEHMANN GUNTHER
DANIEL GABRIEL
FRANKOWSKY GERD
DANIEL GABRIEL
FRANKOWSKY GERD
Application Number:
PCT/US2001/045044
Publication Date:
April 24, 2003
Filing Date:
October 19, 2001
Export Citation:
Assignee:
INFINEON TECHNOLOGIES CORP (US)
International Classes:
G11C17/16; G11C17/18; (IPC1-7): G11C29/00; G11C17/18
Foreign References:
| US5748543A | 1998-05-05 | |||
| EP0561131A2 | 1993-09-22 |
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