Patent ID: 6890785
Filing Date: 2005-05-10
Classification: H01L

Abstract:
1. A manufacturing method for a semiconductor device comprising the steps of: growing a group III-V nitride semiconductor to form a seed crystal part; and growing a group III-V nitride semiconductor based on the seed crystal part with changing at least one of growth conditions in two or more stages to form a semiconductor layer, wherein the second stage comprises the steps of: growing the semiconductor layer based on the second seed crystal part in a direction different from a thickness direction of the semiconductor layer to form a plurality of connection parts; forming an active layer having a current injection region above the plurality of connection parts; and forming a current confinement part which limits the current injection region of the active layer and is located corresponding to a region between the connection parts, wherein the current confinement part is formed corresponding to a region between the seed crystal part and the connection parts, wherein a sum of a distance between the seed crystal part and the current confinement part and a distance between the current confinement part and the connection part is 4 μm or more.