Layout structure of electrostatic discharge protection circuit

Details Layout structure of electrostatic discharge protection circuit Layout structure of electrostatic discharge protection circuit

2007-11-06

2007-11-06

Menz, Douglas M. (Department: 2891)

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

Combined with electrical contact or lead

Of specified material other than unalloyed aluminum

C257S355000, C257S360000

Reexamination Certificate

active

11364178

ABSTRACT:
A layout structure of electrostatic discharge (ESD) protection circuit cooperated with an ESD protection device includes a first electrically conductive layer and a second electrically conductive layer. The first electrically conductive layer is disposed on the ESD protection device and electrically connected to the ESD protection device. The second electrically conductive layer is disposed on the first electrically conductive layer and electrically connected to the first electrically conductive layer. A width or a projection area of the second electrically conductive layer is less than that of the first electrically conductive layer.

REFERENCES:
patent: 6489689 (2002-12-01), Nojiri
patent: 6956747 (2005-10-01), Shigyo et al.

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