Step-shaped floating poly-si gate to improve a gate coupling...

Details Step-shaped floating poly-si gate to improve a gate coupling... Step-shaped floating poly-si gate to improve a gate coupling...

2005-01-04

2005-01-04

Tran, Minhloan (Department: 2826)

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

Field effect device

Having insulated electrode

C257S315000, C257S320000

Reexamination Certificate

active

06838725

ABSTRACT:
A stacked-gate flash memory cell is provided having step-shaped poly-gates with increased overlap area between them in order to increase the coupling ratio and hence the program speed of the cell. The floating gate is first formed with a step and the intergate dielectric is conformally shaped thereon followed by the forming of the control gate thereon. The increase in the-overlap area can be achieved by forming gates with multiply connected surfaces of different shapes.

REFERENCES:
patent: 5243559 (1993-09-01), Murai
patent: 5451537 (1995-09-01), Tseng et al.
patent: 5464999 (1995-11-01), Bergemont
patent: 5677216 (1997-10-01), Tseng
patent: 5714412 (1998-02-01), Liang et al.
patent: 5801415 (1998-09-01), Lee et al.
patent: 5854502 (1998-12-01), Nishihara
patent: 5859454 (1999-01-01), Choi et al.
patent: 6329688 (2001-12-01), Arai
patent: 6445029 (2002-09-01), Lam et al.
patent: 20010045594 (2001-11-01), Chang
patent: 20020096704 (2002-07-01), Fukumoto et al.
patent: 01241177 (1989-09-01), None

Affiliated with

Also associated with

Rating

Step-shaped floating poly-si gate to improve a gate coupling... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Step-shaped floating poly-si gate to improve a gate coupling..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Step-shaped floating poly-si gate to improve a gate coupling... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3383368