Patent ID: 8587073

Claim:
A semiconductor device, comprising: a resistor having a spiral shape, the resistor having a first portion and a second portion; and a voltage protection device that includes: a gate that is electrically coupled to the first portion of the resistor; a first doped region that is electrically coupled to the first portion of the resistor; a second doped region that is electrically coupled to the second portion of the resistor, the first and second doped regions having opposite doping polarities; first and second heavily doped regions disposed within the first doped region, the first and second heavily doped regions being oppositely doped and each being coupled to the first portion of the resistor; and a third heavily doped region disposed within the second doped region, the third heavily doped region being coupled to the second portion of the resistor, wherein the first, second, and third heavily doped regions are each more heavily doped than the first and second doped regions.