Patent ID: 7413970

Claim:
A process of forming an electronic device comprising: forming a semiconductor fin over an insulating layer; forming a conductive member over and spaced-apart from the semiconductor fin; forming a semiconductor layer over the semiconductor fin after forming the conductive member, wherein: the semiconductor layer has a first portion and a second portion spaced-apart from each other; and the conductive member lies between and is spaced-apart from the fist portion of the semiconductor layer and the second portion of the semiconductor layer; forming a metal-containing layer over the semiconductor layer and the conductive member; and reacting the metal-containing layer and the semiconductor layer and reacting the metal-containing layer and the conductive member, wherein: the metal-containing layer and the semiconductor layer react to form a first metal-semiconductor layer having a first interface along a bottom surface of the first metal-semiconductor layer, wherein the first interface is characterized by a first roughness; and the metal-containing layer and the conductive member react to form a second metal-semiconductor layer having a second interface along a bottom surface of the second metal-semiconductor layer, wherein the second interface, is characterized by a second roughness that is greater than the first roughness.