On-chip latch-up protection circuit

Details On-chip latch-up protection circuit On-chip latch-up protection circuit

2006-12-29

2010-02-16

Jackson, Stephen W (Department: 2836)

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific current responsive fault sensor

Reexamination Certificate

active

07663853

ABSTRACT:
An on-chip latch-up protection circuit. The lath-up protection circuit includes a core circuit, a power switch, and a current extractor. The power switch controls major current flowing through the core circuit. The current extractor detects amplitude of the major current. The power switch, the core circuit and the current extractor are coupled in series between a relatively-high power line and a relatively-low power line. When the major current surpasses a predetermined amplitude, the power switch is turned off, causing latch-up stops.

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patent: 6188237 (2001-02-01), Suzuki et al.
patent: 6735755 (2004-05-01), Shau
patent: 6765771 (2004-07-01), Ker et al.
patent: 6930530 (2005-08-01), Wang
patent: 7253999 (2007-08-01), Ker et al.
patent: 7512514 (2009-03-01), Duarte et al.

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