Patent ID: 6730984
Filing Date: 2004-05-04
Classification: C23C,C25D,H01C,H01L,Y10S

Abstract:
An electrical structure, comprising a semiconductor structure that includes a resistor,wherein the resistor includes a surface layer and a subsurface layer, wherein the subsurface layer is in direct mechanical contact with the surface layer, wherein an exterior surface of the resistor includes an exterior surface of the surface layer, wherein the exterior surface of the resistor does not include any exterior surface of the subsurface layer, wherein the subsurface layer includes an unoxidized material, wherein the surface layer comprises an oxidized portion that includes an oxidized material, wherein the surface layer comprises an unoxidized portion that includes the unoxidized material and does not include the oxidized material, wherein the exterior surface of the surface layer includes an exterior surface of the oxidized portion and an exterior surface of the unoxidized portion, wherein the oxidized portion is a fraction F of the surface layer such that F<1 and F has a value equal to a ratio of the surface area of the exterior surface of the oxidized portion to the surface area of the exterior surface of the surface layer, wherein oxygen particles distinct from the oxidized material are present at the exterior surface of the oxidized portion and said oxygen particles are not present at the exterior surface of the unoxidized portion, wherein an electrical resistance of the resister having the oxidized material exceeds an electrical resistance that the resistor would have if the oxidized material were replaced by an equivalent volume of the unoxidized material, and wherein the unoxidized portion does not include the oxygen particles.