Static information storage and retrieval – Addressing – Counting
Reexamination Certificate
2005-01-18
2005-01-18
Lebentritt, Michael S. (Department: 2824)
Static information storage and retrieval
Addressing
Counting
C365S189090, C365S225700
Reexamination Certificate
active
06845060
ABSTRACT:
The present invention relates to a program counting circuit and a program word line voltage generating circuit in a flash memory device. The program counting circuit includes a data transmit unit having a plurality of fuses for receiving and transferring data, a counting reset unit for generating a reset signal in order to set the data transferred from the data transmit unit to an initial counting value, and a counting unit for setting the data to the initial counting value depending on the reset signal and sequentially performing a counting operation from the initial counting value set depending on the clock signal. Thus, the circuit can be simply implemented, and the number pf the program and verify operation can be controlled.
REFERENCES:
patent: 6111789 (2000-08-01), Choi et al.
patent: 6552934 (2003-04-01), Roohparvar
Kang-Deog Suh, et al.; A 3.3V 32Mb NAND Flash Memory with Incremental Step Pulse Programming Scheme; ISSCC95 / Session7 / Flash Memory / Paper TA 7.5; 1995 IEEE International Solid-State Circuits Conference; 1995; pp. 128-129.
Hynix / Semiconductor Inc.
Le Toan
Lebentritt Michael S.
Piper Rudnick LLP
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