Patent ID: 8323413

Claim:
A semiconductor manufacturing apparatus comprising: a reaction chamber; a heating unit that generates heat in the reaction chamber; a susceptor on which a wafer is loaded and that includes a plurality of pockets each having a bottom surface that is inclined, wherein the plurality of pockets are disposed on a top surface of the susceptor, and wherein the susceptor is disposed over the heating unit; a shroud configured to supply source materials to the reaction chamber, wherein the shroud is disposed over the susceptor; and a rotation shaft coupled with the susceptor, wherein the rotation shaft is disposed under the susceptor, wherein the top surface of the susceptor is parallel to a bottom surface of the reaction chamber and substantially perpendicular to a flow of the source materials, wherein an inclination angle of the bottom surface of each pocket is in a range of 0°<θ≦10° based on the top surface of the susceptor, wherein one of the plurality of pockets has a bottom surface having an inclined surface formed so that an inner point is deeper than an outer point, and another of the plurality of pockets has a bottom surface having an inclined surface formed so that an outer point is deeper than the inner point, and wherein the inner point is referenced to the center of the entire susceptor and the outer point is referenced to the outer periphery of the susceptor.