Fuse box, semiconductor memory device having the same and...

Details Fuse box, semiconductor memory device having the same and... Fuse box, semiconductor memory device having the same and...

2007-01-16

2007-01-16

Zarabian, Amir (Department: 2827)

Static information storage and retrieval

Read/write circuit

Data refresh

C365S225700

Reexamination Certificate

active

11024462

ABSTRACT:
A semiconductor memory device includes: a TCSR generator for generating an oscillation pulse; a TCSR fuse box for adjusting an oscillation pulse period of the TCSR generator; an SSR generator for generating an SSR mode oscillation pulse; an SSR fuse box for adjusting an oscillation pulse period of the SSR generator; an SSR multiplier for multiplying the oscillation pulse period; an oscillation pulse selector for selecting a signal having a shorter period between output signals of the TCSR generator and the SSR multiplier; a TCSR multiplier for receiving an oscillation pulse of the oscillation pulse selector and multiplying a period of the oscillation pulse; a multiplier fuse box for adjusting the period of the TCSR multiplier; a mode selector for selecting one from the output signal of the oscillation pulse selector and the oscillation pulse of the SSR generator; and a bonding option block controlling the mode selector.

REFERENCES:
patent: 6064619 (2000-05-01), Ahn et al.
patent: 6316963 (2001-11-01), Yanagisawa
patent: 6717878 (2004-04-01), Hagura et al.
patent: 6731558 (2004-05-01), Yamauchi et al.
patent: 2004/0047205 (2004-03-01), Hazama et al.

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