Clocked high voltage switch

Details Clocked high voltage switch Clocked high voltage switch

1995-11-21

1998-03-03

Santamauro, Jon

Electronic digital logic circuitry

Interface

Supply voltage level shifting

326 68, 326 83, 327333, 327589, H03K 190175

Patent

active

057239851

ABSTRACT:
The present invention discloses methods and apparatus for implementing a clocked high voltage switch involving MOS devices. The switching is from a high voltage source typically at 21V to ground. An intermediate voltage source typically at 11V is introduced for reducing the gated breakdown voltage requirement to approximately 10V. This reduced gated breakdown voltage requirement is easily met by special layout methods applied to various transistors in the circuit. The basic layout methods include the terminating of the field implant region near the N+P junction to expose the N+ diffusion over the P substrate to increase the junction breakdown and the gated diode breakdown, and the use of short channel length to reduce the threshold voltage.

REFERENCES:
patent: 4511811 (1985-04-01), Gupta
patent: 5136190 (1992-08-01), Chern et al.
patent: 5248907 (1993-09-01), Lin et al.
patent: 5319604 (1994-06-01), Imondi et al.
patent: 5559464 (1996-09-01), Orii et al.
patent: 5587671 (1996-12-01), Zagar
patent: 5641982 (1997-06-01), Takahashi
High Voltage Regulation and Process Consideration for High-Density 5 V-Only E2PROM's , Duane H. Oto et al., IEEE Journal of Solid-State Circuits, vol. SC-18, No. 5, Oct. 1983.

Affiliated with

Also associated with

Rating

Clocked high voltage switch does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Clocked high voltage switch, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Clocked high voltage switch will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2252004