Active solid-state devices (e.g. – transistors – solid-state diode – Field effect device – Having insulated electrode
Reexamination Certificate
2006-07-25
2006-07-25
Lee, Eugene (Department: 2815)
Active solid-state devices (e.g., transistors, solid-state diode
Field effect device
Having insulated electrode
C257S356000, C257S173000
Reexamination Certificate
active
07081654
ABSTRACT:
An electrostatic discharge (ESD) protection device is disclosed. The ESD protection device comprises a source diffusion in a substrate and a deeper body diffusion in the substrate. The ESD protection device further includes a gate function provided at a space between the source diffusion and the body diffusion surface terminations; and further includes a drain located a predetermined distance from the body diffusion. Finally, the ESD protection device includes a structure for shorting the source and the body diffusion to each other and to ground at variable distances from the channel region, thus providing a programmable variable snap back voltage to provide a protection when an ESD voltage is encountered.
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Lee Eugene
Micrel Inc.
Sawyer Law Group LLP
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