Active solid-state devices (e.g. – transistors – solid-state diode – Regenerative type switching device – Device protection
Reexamination Certificate
2007-12-31
2010-11-02
Nguyen, Thanh (Department: 2893)
Active solid-state devices (e.g., transistors, solid-state diode
Regenerative type switching device
Device protection
C257S355000, C257SE29008, C257SE29015
Reexamination Certificate
active
07825431
ABSTRACT:
A semiconductor power device supported on a semiconductor substrate includes an electrostatic discharge (ESD) protection circuit disposed on a first portion of patterned ESD polysilicon layer on top of the semiconductor substrate. The semiconductor power device further includes a second portion of the patterned ESD polysilicon layer constituting a body implant ion block layer for blocking implanting body ions to enter into the semiconductor substrate below the body implant ion block layer. In an exemplary embodiment, the electrostatic discharge (ESD) polysilicon layer on top of the semiconductor substrate further covering a scribe line on an edge of the semiconductor device whereby a passivation layer is no longer required manufacturing the semiconductor device for reducing a mask required for patterning the passivation layer.
REFERENCES:
patent: 6249023 (2001-06-01), Finney
patent: 7126169 (2006-10-01), Kitabatake
patent: 7439597 (2008-10-01), Shiu et al.
patent: 7728385 (2010-06-01), Pan et al.
patent: 2003/0052367 (2003-03-01), Lin
patent: 2004/0097042 (2004-05-01), Hshieh et al.
patent: 2005/0227440 (2005-10-01), Ema et al.
patent: 2006/0071276 (2006-04-01), Zundel et al.
patent: 2007/0039923 (2007-02-01), Kim
patent: 2007/0176239 (2007-08-01), Hshieh
patent: 2007/0194374 (2007-08-01), Bhalla et al.
Bhalla Anup
Ng Daniel
Su Yi
Wang Wei
Wang Xiaobin
Alpha & Omega Semicondictor, Ltd.
Lin Bo-In
Nguyen Thanh
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