Memory system and a voltage regulator

Details Memory system and a voltage regulator Memory system and a voltage regulator

2008-07-15

2008-07-15

Tran, Michael T (Department: 2827)

Static information storage and retrieval

Floating gate

Particular biasing

C365S205000

Reexamination Certificate

active

11693712

ABSTRACT:
A regulator for regulating a program voltage of a memory device is introduced. The regulator includes an operating amplifier, a program path emulation apparatus, and a current mirror coupled to the program path emulation apparatus and the operating amplifier. The current mirror is for controlling a current flowing in the program path emulation apparatus a multiple of a predetermined current. The program path emulation apparatus includes a bit line selection emulation unit for emulating a bit line selecting unit of the memory device, a path resistor for emulating a program path of a memory cell of the memory device, and a sector selection emulation unit for emulating a sector selecting unit of the memory device. The value of the predetermined current may be varied according to the program times of the memory cells of the memory device.

REFERENCES:
patent: 7009882 (2006-03-01), Chen
patent: 2002/0041531 (2002-04-01), Tanaka et al.
patent: 2003/0223289 (2003-12-01), Ganivet et al.
patent: 2004/0057291 (2004-03-01), Conte et al.
patent: 2004/0190340 (2004-09-01), Chih et al.
patent: 2007/0081389 (2007-04-01), Tran et al.
patent: 2007/0115717 (2007-05-01), Yang et al.
patent: 2007/0133250 (2007-06-01), Kim

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