Patent ID: 7148149
Filing Date: 2006-12-12
Classification: H01L

Abstract:
1. A method for fabricating a nitride-based compound semiconductor element, comprising the steps of: forming a nitride-based compound semiconductor layer on a base substrate; forming a conductive film as an etching mask on part of the surface of the nitride-based compound semiconductor layer; performing dry etching on the nitride-based compound semiconductor layer; and performing wet etching on the nitride-based compound semiconductor layer by emitting electrons from the nitride-based compound semiconductor layer through the conductive film to the outside, the wet etching being performed without applying an external voltage to the conductive film and without radiating the nitride-based compound semiconductor layer with ultraviolet light, wherein in the step of performing dry etching, a damaged layer is created in the nitride-based compound semiconductor layer, and in the step of performing wet etching, the damaged layer is removed.