Active solid-state devices (e.g. – transistors – solid-state diode – Regenerative type switching device – Device protection
Patent
1995-06-07
1997-01-07
Jackson, Jerome
Active solid-state devices (e.g., transistors, solid-state diode
Regenerative type switching device
Device protection
257133, 257358, 257361, 257362, 257566, 257577, 361 91, 327428, H01L 2974
Patent
active
055919928
ABSTRACT:
An integrated circuit has a semiconductor die with a substrate and at least first and second bond pads. An internal circuit is fabricated on the semiconductor die and connected to the first bond pad. An electrostatic discharge protection circuit including cascaded bipolar transistors is connected in series with a field effect transistor between the first and second bond pads. In another version, an output buffer of the integrated circuit is divided into sections. An electrostatic discharge protection circuit is triggerable in response to a voltage in the substrate. Resistive connections are provided from the sections of the output buffer to one of the bond pads. The output buffer is operative upon an electrostatic discharge event to inject sufficient charge into the substrate to produce the voltage to trigger the electrostatic discharge protection circuit. Other circuits, devices, systems and methods are also disclosed.
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Guay John
Jackson Jerome
Kesterson James C.
Laws Gerald E.
McClure C. Alan
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