Static information storage and retrieval – Floating gate – Particular biasing
Reexamination Certificate
2009-05-20
2011-10-18
Hur, J. H. (Department: 2824)
Static information storage and retrieval
Floating gate
Particular biasing
C365S184000, C365S149000
Reexamination Certificate
active
08040728
ABSTRACT:
A semiconductor integrated circuit includes a non-volatile memory built into the semiconductor integrated circuit, the non-volatile memory electrically writing and erasing data and including a memory cell, the memory cell including: a selecting transistor controlled by a word line; an impurity diffused region formed inside a semiconductor substrate, the impurity diffused region being coupled to one of a source and a drain of the selecting transistor; a first electrode formed above the semiconductor substrate with an insulating film therebetween, the first electrode receiving a control signal and part of the first electrode having an opening; a second electrode formed above the first electrode so as to oppose the first electrode with an insulating film therebetween, the second electrode having a protrusion which opposes the impurity diffused region with a tunnel film therebetween and projects toward the semiconductor substrate through the opening of the first electrode, and storing information based on an applied voltage; and a sensing transistor operating based on charges accumulated in the second electrode, so as to sense the information stored in the memory cell.
REFERENCES:
patent: 4417264 (1983-11-01), Angle
patent: 4907198 (1990-03-01), Arima
patent: 5049516 (1991-09-01), Arima
patent: 5625213 (1997-04-01), Hong et al.
patent: 6949790 (2005-09-01), Iwai et al.
patent: 7307309 (2007-12-01), Hao et al.
patent: 7314797 (2008-01-01), Iwai et al.
patent: 7378706 (2008-05-01), Terauchi
patent: A-59-500343 (1984-03-01), None
patent: A-01-146371 (1989-06-01), None
patent: A-62-502156 (1989-08-01), None
patent: A-06-244431 (1994-09-01), None
patent: A-2000-012709 (2000-01-01), None
patent: A-2002-246485 (2002-08-01), None
patent: A-2003-92368 (2003-03-01), None
patent: WO 86/05323 (1986-09-01), None
Hur J. H.
Oliff & Berridg,e PLC
Pham Hai
Seiko Epson Corporation
LandOfFree
Semiconductor integrated circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Semiconductor integrated circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Semiconductor integrated circuit will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4281034