Patent ID: 7531437

Claim:
A method of forming a semiconductor device comprising: forming a sacrificial gate electrode over and around a semiconductor body having a top surface and a pair of laterally opposite sidewalls, wherein the portion of said semiconductor body surrounded by said sacrificial gate electrode defines a channel region of said semiconductor body; etching away said sacrificial gate electrode to expose a sacrificial gate dielectric layer; removing said sacrificial gate dielectric layer with an etchant to expose said channel region of said semiconductor body; removing said sacrificial gate dielectric layer with an etchant to expose said channel region of said semiconductor body, wherein said etchant makes the surface of said channel region of said semiconductor body into a hydrophobic surface; and converting said hydrophobic surface of said channel region into a hydrophilic surface; depositing a gate dielectric layer on said top surface and sidewalls of said channel region of said semiconductor body; and depositing a gate electrode material on said gate dielectric layer.