Patent ID: 7779784
Filing Date: 2010-08-24
Classification: C23C,H01J,H01L

Abstract:
1. A substrate processing chamber, comprising: a top shower plate, wherein the top shower plate has holes in communication with a top surface and a bottom surface of the top shower plate; a bottom shower plate, wherein the bottom shower plate comprises columns having column holes in communication with a top surface and a bottom surface of the bottom shower plate and has grooves having groove holes in communication with the bottom surface of the bottom shower plate; a gas box having a first gas channel; a gas conduit coupled to the first gas channel of the gas box, disposed through an aperture of the top shower plate, and coupled to an aperture of the bottom shower plate, wherein the aperture of the bottom shower plate is in communication with the grooves of the bottom shower plate; a substrate support; an insulator disposed between the top shower plate and the bottom shower plate; a power source coupled to the top shower plate, the bottom shower plate, or the substrate support; and a controller adapted to control the power source to provide pulses of power and to provide ground to the top shower plate, the bottom shower plate, or the substrate support.