Patent ID: 9180550
Filing Date: 2015-11-10
Classification: B23K,H01L

Abstract:
1. A heat treatment apparatus for heating a substrate by irradiating said substrate with light, said heat treatment apparatus comprising: a chamber configured to receive a substrate; a holding part configured to hold the substrate within said chamber; a quartz window arranged at one end of said chamber; a halogen lamp configured to irradiate one side of the substrate held on said holding part with light through said quartz window; a temperature detection part configured to receive an infrared ray emitted from the other side of the substrate held on said holding part, and two-dimensionally detect the temperature of said the other side; an infrared-transparent window arranged at the other end of said chamber and configured to allow an infrared ray in a wavelength region detectable by said temperature detection part to transmit therethrough; and a temperature correction part configured to, based on a result of the detection obtained by said temperature detection part, heat a temperature drop region having a relatively low temperature among a region of the substrate held on said holding part.