SCR and current divider structure of electrostatic discharge pro

Details SCR and current divider structure of electrostatic discharge pro SCR and current divider structure of electrostatic discharge pro

1998-12-30

2000-11-14

Hardy, David

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

Regenerative type switching device

Device protection

257124, 257126, 257132, 257133, 257144, 257152, 257153, 257154, 257173, 257355, 257546, H01L 2974, H01L 31111, H01L 2362, H01L 2900

Patent

active

061473693

ABSTRACT:
An electrostatic discharge protective circuit of the invention includes a silicon controller rectifier (SCR) and a current diverter. The current diverter is used to bypass an initial low current thereby to prevent the SCR from being triggered by the low current. Thus, a trigger current required to activate the SCR can be greatly increased thereby to maintain an internal circuit at a normal operating state.

REFERENCES:
patent: 5465189 (1995-11-01), Polgreen et al.
patent: 5637887 (1997-06-01), Consiglio
patent: 5895940 (1999-04-01), Kim
patent: 6016002 (2000-01-01), Chen et al.

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