Patent ID: 7183593

Claim:
A fixed value passive resistor comprising: a substrate comprising a doped semiconductor material; a first semiconductor layer of a first semiconductor material with a dopant of a first type overlying said substrate; a predetermined region with a dopant of a second type opposite to the dopant of the first type in a portion of said first semiconductor layer, said predetermined region having a first natural lattice constant said predetermined region extending between a first contact area and a second contact area; a second semiconductor layer of a second semiconductor material overlying and in direct contact with said predetermined region, said second semiconductor material having a second natural lattice constant different than the first natural lattice constant; a first resistor terminal electrically coupled to said first contact area of said predetermined region; a second resistor terminal electrically coupled to said second contact area of said predetermined region such that the predetermined region between the first resistor terminal and the second resistor terminal comprises a resistor body; and an interlevel dielectric layer covering and isolating said predetermined region, except for first and second apertures defined in said interlevel dielectric layer to provide electrical connections to said first and second contact areas such that said resistor body is a passive and fixed resistor body.