Patent ID: 7720127
Filing Date: 2010-05-18
Classification: B82Y,H01S

Abstract:
1. An opto-semiconductor device comprising: an opto-semiconductor element including a semiconductor substrate, a multilayered semiconductor portion formed on a. first surface of the semiconductor substrate and having a resonator for generating a laser in the inside layer of the multilayered semiconductor portion, the multilayered semiconductor portion over the resonator comprises a ridge sandwiched between isolation grooves, an insulating layer covering a surface of the multilayered semiconductor and uncovering the top surface of the ridge, a. first electrode having a multiplicity of conductive layers stacked on both the insulating layer and the top surface of the ridge, thereby the first electrode and the top surface of the ridge contact each other, a second electrode formed on a second surface on the opposite side of the semiconductor substrate far from the first surface; and a support substrate with a first surface thereof formed with an element fixing portion having a conductive layer for fixing the first electrode of the opto-semiconductor element, wherein the first electrode of the opto-semiconductor element is connected to the element fixing portion of the support substrate through a bonding material, the first electrode comprises a first barrier layer, a second barrier layer, a first Au layer, and a second Au layer which are stacked on the multilayered semiconductor in this order, the bonding material and the second Au layer react with each other to form a reaction layer.