Patent ID: 6652650
Filing Date: 2003-11-25
Classification: C23C,C30B,Y10S,Y10T

Abstract:
Apparatus for supporting a semiconductor wafer in a chamber of the type having an interior space, a gas inlet for directing gas to flow into the interior space of the chamber and a gas outlet through which the gas is exhausted from the interior space of the chamber, the wafer having a front surface and a back surface, said apparatus comprising:a susceptor sized and configured for supporting the semiconductor wafer within the interior space of the chamber, the susceptor having a porous surface having a density of openings of between about 0.2 openings/cm2 and about 4 openings/cm2, the susceptor further being configured such that the porous surface is in generally opposed relationship with the back surface of said semiconductor wafer supported by the susceptor, said porous surface being adapted for exposure to the interior of the chamber to permit gas flow inward through the porous surface for contact with the back surface of the semiconductor wafer and for further flow outward through the porous surface for exhaustion from the chamber via the gas outlet thereof while the semiconductor is supported by the susceptor.