Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Amplitude control
Patent
1998-02-19
1999-11-09
Cunningham, Terry D.
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Amplitude control
327310, 327327, H03K 508
Patent
active
059822171
ABSTRACT:
A novel PNP driven NMOS (PDNMOS) protection scheme is provided for advanced nonsilicide/silicide submicron CMOS processes. The emitter of a PNP transistor and the drain of protection NMOS device are connected to an I/O pad for which ESD protection is provided by the PDNMOS. The collector of the PNP transistor and the gate of the protection NMOS transistor are connected to ground through a resistor. The source of the protection NMOS transistor is grounded. The base of the PNP transistor is connected to either a capacitor or the parasitic capacitor of the integrated circuit.
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Chen Julian Z.
Duvvury Charvaka
Li Larry B.
Vrotsos Thomas A.
Brady W. James
Cunningham Terry D.
Donaldson Richard L.
Hasanzadah Maria
Maginniss Christopher L.
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