Semiconductor storage device including electrical fuse module

Details Semiconductor storage device including electrical fuse module Semiconductor storage device including electrical fuse module

2008-07-08

2008-07-08

Phung, Anh (Department: 2824)

Static information storage and retrieval

Read/write circuit

Having fuse element

C365S096000

Reexamination Certificate

active

07397720

ABSTRACT:
Electrical fuse blocks (100) of a plurality of stages are provided each of which includes a plurality of electrical fuse cores (101). The electrical fuse block (100) includes a program shift register block (103) made up of shift registers (107) which are disposed for the respective electrical fuse cores (101), sequentially transmit program enable signal FPGI, and output the program enable signal FPGI to the NMOS transistors (105) of the electrical fuse cores (101). When performing programming according to programming decision signal PBn, the program shift register block (103) transmits the program enable signal FPGI. When not performing programming, the program shift register block (103) skips the program enable signal FPGI.

REFERENCES:
patent: 5708291 (1998-01-01), Bohr et al.
patent: 6798272 (2004-09-01), Lehmann
patent: 6876586 (2005-04-01), Hausmann
patent: 6992945 (2006-01-01), Otsuka
patent: 2005/0076274 (2005-04-01), Nagai et al.

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