Patent ID: 8246900

Claim:
An annealing apparatus comprising: a processing chamber for accommodating an object to be processed; a heating source including a plurality of light emitting devices, said heating source and provided to face at least one surface of the object to irradiate light on the object; a light-transmitting member arranged in alignment with the heating source to transmit the light emitted from the light emitting devices; a cooling member supporting the light-transmitting member at opposite side to the processing chamber to make direct contact with the heating source and made of a material of high thermal conductivity; a cooling mechanism for cooling the cooling member with a coolant; a gas exhaust mechanism for exhausting an inside of the processing chamber; and a processing gas supply mechanism for supplying a processing gas into the processing chamber, wherein the heating source comprises a plurality of light emitting device arrays, each of which is formed of a unit including: a support body provided to support a plurality of light emitting devices and made of a material of high thermal conductivity; a thermal diffusion member attached to a rear surface of the support body and made of a material of high thermal conductivity; a resin layer provided to cover the light emitting devices supported by the support body and made of transparent resin; and a power supply electrode passing through the thermal diffusion member and the support body to supply a power to the light emitting devices, the light emitting device arrays being screw-fixed to the cooling member via paste of high thermal conductivity.