Patent ID: 9202726
Filing Date: 2015-12-01
Classification: H01J,H01L

Abstract:
1. A manufacturing method of a semiconductor device comprising: arranging a compound semiconductor, which includes a group-III element nitride as a main component, above a stage of a chamber; supplying an etching gas into the chamber; generating a plasma in the chamber with the compound semiconductor arranged therein and the etching gas supplied therein, so that a surface of the compound semiconductor is processed by a dry etching; and irradiating light into the chamber during the generating of the plasma, wherein a wavelength of the light that is irradiated is shorter than 500 nm, and the light is irradiated to the surface of the compound semiconductor in a direction perpendicular to the surface of the compound semiconductor, wherein the light is irradiated into the chamber during the generating of the plasma from a direction perpendicular to the substrate by a light source disposed to face the substrate, the light source irradiating parallel light.