IC substrate with over voltage protection function

Details IC substrate with over voltage protection function IC substrate with over voltage protection function

2007-08-07

2007-08-07

Williams, Alexander Oscar (Department: 2826)

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

Lead frame

On insulating carrier other than a printed circuit board

C257SE23174, C257SE23021, C257SE23024, C257SE23062, C257SE23067, C257SE23069, C257SE23079, C257SE23145, C257S659000, C257S700000, C257S691000, C257S698000, C257S696000, C257S684000, C257S734000, C257S737000, C257S738000, C257S701000, C257S758000, C257S796000, C257S778000

Reexamination Certificate

active

11364404

ABSTRACT:
The present invention relates to an IC substrate provided with over voltage protection functions and thus, a plurality of over voltage protection devices are provided on a single substrate to protect an IC chip directly. According to the present invention, there is no need to install protection devices at respective I/O ports on a printed circuit board to prevent the IC devices from damage by surge pulses. Therefore, the costs to design circuits are reduced, the limited space is efficiently utilized, and unit costs to install respective protection devices are lowered down.

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