Semiconductor device having ESD protection circuit with time...

Details Semiconductor device having ESD protection circuit with time... Semiconductor device having ESD protection circuit with time...

2006-01-20

2008-12-02

Warren, Matthew E (Department: 2815)

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

Field effect device

Having insulated electrode

C257S355000, C257S358000, C257S359000, C257SE27016, C257SE27033

Reexamination Certificate

active

07459754

ABSTRACT:
Provided is a semiconductor device in which a resistor and a capacitor are inserted in an input/output signal line that connects an input/output pad and an internal circuit at an input/output terminal in order to prevent damage of the internal circuit due to static electricity. The semiconductor device includes the input/output signal line that connects the input/output pad and the internal circuit. A first electrostatic discharge (ESD) protection circuit is branched from the input/output pad and connected to a power supply line, and a second ESD protection circuit is branched from the input/output pad and connected to a ground line. The resistor is located in the input/output signal line, and the capacitor is branched from the power supply line between the power supply line and the resistor.

REFERENCES:
patent: 6198136 (2001-03-01), Voldman et al.
patent: 2002/0084490 (2002-07-01), Ker et al.
patent: 2002/0119608 (2002-08-01), Ko et al.
patent: 2004/0232492 (2004-11-01), Ker et al.
patent: 11-289056 (1999-10-01), None
patent: 2003-197754 (2003-07-01), None
patent: 10-2000-0055561 (2000-09-01), None
patent: 10-2002-0032163 (2002-05-01), None

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