Protection circuit

Details Protection circuit Protection circuit

2009-03-26

2011-10-04

Nguyen, Ha Tran T (Department: 2829)

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

Regenerative type switching device

Device protection

C257SE29225

Reexamination Certificate

active

08030683

ABSTRACT:
A protection circuit according to an embodiment of the present invention is provided between a first terminal and a second terminal and includes: a capacitor element having one end connected to the second terminal; and a multi-cathode thyristor formed on a semiconductor substrate, and including an anode connected to the first terminal, a first cathode connected to the second terminal, and a second cathode disposed between the anode and the first cathode and connected to another terminal of the capacitor element.

REFERENCES:
patent: 2003/0168701 (2003-09-01), Voldman
patent: 2000-277700 (2000-10-01), None
patent: 2005-101485 (2005-04-01), None
Brennan et al., “Implementation of Diode and Bipolar Triggered SCRs for CDM Robust ESD protection in 90mm CMOS ASICs”, 2005 EOS/ESD Symposium.

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