Patent ID: 8748780

Claim:
A substrate processing apparatus adapted to heat and/or cool a substrate, the apparatus comprising: a heat exchange plate configured to heat and/or cool the substrate; plural protrusions provided on the heat exchange plate so as to allow the substrate to be placed on the plural protrusions, leaving a gap between the substrate and the heat exchange plate; a suction portion configured to attract the substrate onto the plural protrusions by suction through plural holes formed in the heat exchange plate; and a partition member that is provided on the heat exchange plate and lower than the plural protrusions, wherein the partition member is configured to divide the gap into two or more regions each including at least one of the plural holes so that at least one of the two or more regions is two-dimensionally closed by the partition member, wherein the partition member comprises: a first ring-like partition member arranged on the heat exchange plate concentrically at a first diameter from a center of the substrate placed on the plural protrusions; and a second ring-like partition member arranged on the heat exchange plate concentrically at a second diameter, larger than the first diameter, from the center of the substrate placed on the plural protrusions, one or more of the plural protrusions are provided both inside the first ring-like partition member and outside the first ring-like partition member on the heat exchange plate, and the plural protrusions are formed into pins.