Semiconductor device

Details Semiconductor device Semiconductor device

2005-07-26

2005-07-26

Tan, Vibol (Department: 2819)

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

Field effect device

Having insulated electrode

C257S355000, C257S357000, C361S111000, C361S056000, C326S081000, C326S121000

Reexamination Certificate

active

06921950

ABSTRACT:
In order to improve the robustness against electrostatic discharge, when power source terminal and ground terminal are open, of a semiconductor device having a first, a second and a third inverter that are connected in a cascade arrangement, the semiconductor device is provided not only with a first input protection circuit for guiding positive electrostatic discharges, that are applied from outside to a signal input terminal, to a power source line, and a second input protection circuit for guiding negative electrostatic discharges, that are applied from outside to the signal input terminal, to a ground line, but also an internal protection circuit for guiding electrostatic discharges that have been guided by the first input protection circuit to the power source line and flow from a P-channel MOS transistor in the second inverter towards the third inverter, to the ground line.

REFERENCES:
patent: 5623156 (1997-04-01), Watt
patent: 5945713 (1999-08-01), Voldman
patent: 6329694 (2001-12-01), Lee et al.
patent: 6337787 (2002-01-01), Tang
patent: 6351362 (2002-02-01), Inoue et al.
patent: 6437407 (2002-08-01), Ker et al.
patent: 6515337 (2003-02-01), Kato
patent: 6521951 (2003-02-01), Sato et al.
patent: 6671153 (2003-12-01), Ker et al.
patent: 6690561 (2004-02-01), Hung et al.
patent: 6768619 (2004-07-01), Ker et al.
patent: 6770938 (2004-08-01), Fliesler et al.
patent: 6801416 (2004-10-01), Hatzilambrou et al.
patent: 63-171032 (1988-11-01), None
patent: 02-007458 (1990-11-01), None
patent: 03-060066 (1991-03-01), None
patent: 07-254684 (1995-10-01), None
patent: 09-139466 (1997-05-01), None
patent: 2000-243912 (2000-08-01), None

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3419906