Patent ID: 8832924
Filing Date: 2014-09-16
Classification: H01L,Y10T

Abstract:
1. A substrate processing apparatus for performing a predetermined process on a substrate, comprising: a holding plate having a holding surface configured to be opposed a back surface of a substrate; at least one vacuum suction port formed in said holding surface and configured to attract said substrate to said holding surface by vacuum suction; and a plurality of Bernoulli suction ports formed in said holding surface and configured to attract said substrate to said holding surface by Bernoulli suction, said holding surface including a circular region disposed concentrically with a center of said holding surface, and an annular region disposed concentrically with said circular region, at least one of said Bernoulli suction ports being disposed in said circular region, at least one of said Bernoulli suction ports being disposed in said annular region.