Patent ID: 7087978

Claim:
A semiconductor resistor formed in a semiconductor material of a first conductivity type, the resistor comprising: a continuous doped region of a second conductivity type formed in the semiconductor material, the doped region having a first region and a spaced-apart second region, different potentials being placed on the first and second regions of the continuous doped region to cause a current to flow between the first region and the second region, the doped region having a length and a width, the doped region including a third region of a first dopant concentration, a fourth region of a second dopant concentration, and a fifth region of a third dopant concentration, the first dopant concentration being substantially larger than the second and third dopant concentrations, the fourth and fifth regions lying on opposite sides of and contacting the third region; a layer of insulation that contacts the semiconductor material; a first semiconductor structure that contacts the layer of insulation; and a second semiconductor structure that contacts the layer of insulation, a spacing between the first and second semiconductor structures being substantially equal to a dimension of the doped region.