Semiconductor storage device and portable electronic equipment

Details Semiconductor storage device and portable electronic equipment Semiconductor storage device and portable electronic equipment

2003-12-19

2009-06-09

Pham, Long (Department: 2814)

Active solid-state devices (e.g., transistors, solid-state diode

Field effect device

Having insulated electrode

C257S314000

Reexamination Certificate

active

07544993

ABSTRACT:
A semiconductor storage device has memory function bodies (261, 262) having a function to retain electric charges, which are formed on opposite sides of a single gate electrode (217) provided on a semiconductor layer (211) with a gate insulation film (214) disposed therebetween. Each memory function body includes a charge retention film (242) having a charge storage region (250). The charge storage regions (250) exist over part of the channel region (273) and part of diffusion regions (212, 213) on both sides of the channel region. Because the memory function bodies are formed on both sides of the gate electrode, independently of the gate insulation film, 2-bit operations are possible. Because the memory function bodies are separated from each other by the gate electrode, interference during rewrite operation is effectively suppressed. Also, short-channel effect is suppressed through thinning of the gate insulation film. Miniaturization of memory elements is thus facilitated.

REFERENCES:
patent: 2004/0232475 (2004-11-01), Kataoka et al.
patent: 2006/0008992 (2006-01-01), Shukuri
patent: 2006/0208312 (2006-09-01), Iwata et al.
patent: 5-81072 (1993-11-01), None
patent: 5-304277 (1993-11-01), None
patent: 9-97849 (1997-04-01), None
patent: 9-116119 (1997-05-01), None
patent: 2001-156188 (2001-06-01), None
patent: 2001-230332 (2001-08-01), None
patent: 2001-512290 (2001-08-01), None
patent: 457712 (2001-10-01), None
patent: WO-02/067320 (2002-08-01), None

Affiliated with

Also associated with

Rating

Semiconductor storage device and portable electronic equipment 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 storage device and portable electronic equipment, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Semiconductor storage device and portable electronic equipment will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4145265