Semiconductor device using high-speed sense amplifier

Details Semiconductor device using high-speed sense amplifier Semiconductor device using high-speed sense amplifier

2005-07-12

2005-07-12

Lam, David (Department: 2827)

Static information storage and retrieval

Read/write circuit

Flip-flop used for sensing

C365S207000, C365S202000

Reexamination Certificate

active

06917552

ABSTRACT:
Disclosed is a sense amplifier arrangement that achieves high-speed access and shorter cycle time when array voltage is lowered in a DRAM. In a TG clocking sense system to separate data lines between the array side and the sense amplifier side in an early stage of a sensing period, a restore amplifier RAP is added, which amplifies data lines on the array side by referring to the data in the sense amplifier, and the restore amplifier is driven by a voltage VDH higher than the array voltage VDL. As a result, high-speed sense operation of the TG clocking system is made compatible with high-speed restore operation of overdrive system, and it is possible to achieve high-speed access operation and shorter cycle time.

REFERENCES:
patent: 5029137 (1991-07-01), Hoshi
patent: 5412605 (1995-05-01), Ooishi
patent: 6212110 (2001-04-01), Sakamoto et al.
patent: 6466501 (2002-10-01), Kim et al.
patent: 2002/0000624 (2002-01-01), Takemura et al.
patent: 1164595 (2001-12-01), None
patent: 02-146177 (1988-11-01), None
patent: 2000243085 (2000-09-01), None

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