Patent ID: 6885280

Claim:
A high value polysilicon resistor formed on a semiconductor wafer, the high value resistor comprising: at least one oxide layer; first polysilicon layer fabricated on the at least one oxide layer, the first polysilicon layer having a patterned and etched opening exposing at least one oxide layer, the etched opening periphery defining a vertical edge; a second polysilicon layer of a thickness of about 1000 A deposited entirely covering the surface of the first polysilicon layer, the vertical edge, and any exposed oxide in the etched opening, the second polysilicon layer on the exposed oxide and the vertical edges patterned and etched to define the outer edges and length of the high value resistor, and the second polysilicon layer on the first polysilicon layer patterned and etched to define ends of the high value resistor; a dielectric covering the high value resistor and the ends; and metal contacts reaching through the dielectric to each of the ends thereby making electrical connections to the high value resistor.