Patent ID: 7559527
Filing Date: 2009-07-14
Classification: C22C,F15C,F16K,Y10T

Abstract:
1. A method of fabricating a diffusion bonded gas distribution assembly for use in semiconductor processing equipment, wherein said method comprises: a) providing a plurality of metal layers, where an average roughness of a bonding surface of a metal layer ranges from about 0.1 microinches Ra to about 30 microinches Ra, and where the thickness of at least one of said plurality of metal layers ranges from about 0.0005 inch to about 0.06 inch; b) chemically or electrochemically etching at least one feature through at least one of said metal layers; c) aligning said plurality of metal layers and at least a portion of a component, so that a gas distribution assembly including said component will be formed upon diffusion bonding; and d) simultaneously diffusion bonding said aligned plurality of metal layers and said at least a portion of said component device, thereby forming a gas distribution assembly comprising said component and said metal layers.