Patent ID: 6129048
Filing Date: 2000-10-10
Classification: C23C,C30B

Abstract:
A susceptor for supporting wafers in a reaction chamber of a barrel reactor during a chemical vapor deposition process, the susceptor comprising a body sized and shaped for receipt within the reaction chamber of the barrel reactor, the body including a generally laterally facing, sloped face having a plurality of circular recesses therein for receiving wafers to support the wafers with one surface directed generally laterally outward for exposure to reactant gas inside the reaction chamber of the barrel reactor during the chemical vapor deposition process, each of said plurality of recesses having a substantially planar bottom and opposing arcuate wall portions on opposite sides of the planar bottom, each wall portion intersecting and merging with a corresponding wall portion of at least one adjoining recess of said plurality of recesses at an intersection, the wall portions at the intersections having a smooth shape which is continuous and uninterrupted with respect to at least one adjoining wall portion thereby inhibiting epitaxial deposition between the wafers and the susceptor at the intersections and reducing wafer chipping when the wafers are removed from the recesses following the chemical vapor deposition process.