Semiconductor device and method for writing data into...

Details Semiconductor device and method for writing data into... Semiconductor device and method for writing data into...

2007-05-22

2007-05-22

Phan, Trong (Department: 2827)

Static information storage and retrieval

Floating gate

Particular biasing

C365S185210, C365S185220, C365S210130

Reexamination Certificate

active

11193872

ABSTRACT:
A semiconductor device includes an array of memory cells, a reference circuit determining a reference level by using a reference cell, and a comparator circuit comparing data of the memory cells with the reference level, and the reference circuit comprising a circuit part that is connected to the reference cell and shifts the reference level. The circuit part includes a diode connected to a source of the reference cell and a switch transistor that is connected in parallel with the diode and is turned on/off. It is therefore possible to realize multiple threshold voltages with the use of one transistor for the reference cell, by shifting the threshold voltage of the reference cell.

REFERENCES:
patent: 5142495 (1992-08-01), Canepa
patent: 5699295 (1997-12-01), Yero
patent: 5708602 (1998-01-01), Yamada
patent: 6091640 (2000-07-01), Kawahara et al.
patent: 6118691 (2000-09-01), Kalnitsky et al.
patent: 6134148 (2000-10-01), Kawahara et al.
patent: 6163485 (2000-12-01), Kawahara et al.
patent: 6272051 (2001-08-01), Choi
patent: 6285597 (2001-09-01), Kawahara et al.
patent: 6459621 (2002-10-01), Kawahara et al.
patent: 6496418 (2002-12-01), Kawahara et al.
patent: 6594181 (2003-07-01), Yamada
patent: 6700819 (2004-03-01), Pascucci
patent: 2004/0008543 (2004-01-01), Kato
patent: 6-68682 (1994-03-01), None
patent: 9-282895 (1997-10-01), None
patent: 10-106276 (1998-04-01), None
patent: 2000-195281 (2000-07-01), None
patent: 2004-39184 (2004-02-01), None

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