Patent ID: 6844246
Filing Date: 2005-01-18
Classification: H01L

Abstract:
1. A method for fabricating a Group III nitride compound semiconductor which forms a Group III nitride compound semiconductor layer with suppressed threading dislocations through lateral epitaxial growth, comprising: a first mask forming process in which a first mask, is formed in a shape of, dot, stripe, or grid, on a layer which serves as an underlying layer, a growth space ensuring process in which a growth space ensuring material is formed on the first mask in order to ensure a growth space for growing said Group III nitride compound semiconductor epitaxially; a process of forming a second mask in a grid or mesh pattern on the underlying layer; a process of removing the growth space ensuring material formed in the growth space ensuring process; and an epitaxial growing process in which said Group III nitride compound semiconductor is formed in said growth space through vertical and lateral epitaxial growth, wherein said masks are formed so that the entire surface of said underlying layer is covered by said first mask and said second mask when said underlying layer is seen in a vertical direction from its top.