Patent ID: 6923867
Filing Date: 2005-08-02
Classification: C23C

Abstract:
1. A substrate processing apparatus comprising: a boat on which a plurality of substrates are supported and which is located in a substrate processing area set in a reaction chamber; a main heater which heats the plurality of substrates in the reaction chamber, the main heater being located outside the reaction chamber; a sublimation heater located in the reaction chamber; a raw material sublimation portion on which a raw material is mounted and which is located in the reaction chamber; and a heat insulation portion located in the reaction chamber, wherein the sublimation heater is located in a vicinity of and below the raw material sublimation portion, at least while the raw material is sublimated by the sublimation heater and a sublimated material is supplied to a surface of the plurality of substrates, the heat insulation portion is located between the raw material sublimation portion and a substrate processing area and is located over the raw material and the sublimation heater without directly contacting the raw material and the sublimation heater, the raw material sublimated by the sublimation heater is caused to flow upward in a flowing direction to be supplied to the plurality of substrates, and the plurality of substrates are supported on the boat so as to be arranged in the flowing direction of the sublimated raw material, and also supported horizontally so that each surface is directed upward.