Semiconductor device

Details Semiconductor device Semiconductor device

1999-02-02

2000-07-04

Nguyen, Viet Q.

Static information storage and retrieval

Read/write circuit

Having fuse element

365200, 36523006, 36523004, G11C 700

Patent

active

060848154

ABSTRACT:
A semiconductor device includes plural fuse wiring paths which extend substantially parallel to each other in a first direction, each of the fuse wiring paths having a fuse element. A normal column line extends in a second direction substantially perpendicular to the first direction, the normal column line corresponding to a normal memory cell which stores data. The semiconductor memory device further includes a redundant column line extending in the second direction, the redundant column line corresponding to a redundant memory cell which stores data. A logic circuit receives respective signals on the plural fuse wiring paths, and outputs a selection signal according to these signals. The semiconductor device also includes a switching circuit coupled between the logic circuit and the normal and redundant column lines, which receives an address signal and the selection signal, and which selectively transfers the address signal to the normal column line or the redundant column line in response to the selection signal.

REFERENCES:
patent: 5576999 (1996-11-01), Kim et al.
patent: 5689465 (1997-11-01), Sukegawa et al.
patent: 5742547 (1998-04-01), Lee
patent: 5848007 (1998-12-01), Takahashi
patent: 5970003 (1999-10-01), Miyatake et al.

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