Patent ID: 7456074
Filing Date: 2008-11-25
Classification: C23C,C25D,H01C,H01L,Y10S

Abstract:
1. A method for increasing an electrical resistance of a resistor, comprising the steps of: predetermining a target resistance R providing a semiconductor structure that includes the resistor; exposing a fraction F of an exterior surface of a surface layer of the resistor to nitrogen particles, wherein F<1, wherein said exposing comprises immersing the semiconductor structure in a chemical solution such that the fraction F of the exterior surface of the surface layer of the resistor is immersed in the chemical solution, and wherein the chemical solution includes the nitrogen particles in a nitrogen comprising gas dissolved in the chemical solution under pressurization; nitridizing the fraction F of the exterior surface of the surface layer by chemically reacting the fraction F of the exterior surface with said nitrogen particles during said exposing in a chemical reaction that increases an electrical resistance of the resistor, wherein a thickness of a nitridized portion of the surface layer increases as a time of the chemical reaction increases; and testing the resistor during the nitridizing step to determine whether the electrical resistance of the resistor is within R