Patent ID: 11876349
Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
Field: Optics (Instruments)
Classification: CPC H | IPC H

Claim 8:
9. A method of producing a semiconductor device, the method comprising:
preparing a laminate that includes:
a first semiconductor layer having a first conductivity type;
a second semiconductor layer having a second conductivity type; and
an active layer between the first semiconductor layer and the second semiconductor layer;

forming a transparent conductive layer on the first semiconductor layer, wherein the transparent conductive layer comprises a transparent conductive material;
forming a mask structure on the transparent conductive layer, wherein the mask structure is processed into a stripe shape and includes a metal;
forming, after forming a metal layer on the transparent conductive layer, an intermediate layer in a connection part between the metal layer and the transparent conductive layer by heat treatment, wherein
constituent elements of the metal layer and constituent elements of the transparent conductive layer are fused in the intermediate layer; and

removing at least a part of the transparent conductive layer and the first semiconductor layer, based on the mask structure, as an etching mask.