Semiconductor substrate, semiconductor device, and manufacturing methods thereof
First Claim
Patent Images
1. A semiconductor substrate, comprising:
- a substrate;
a first semiconductor layer arranged on the substrate;
a metallic material layer arranged on a first portion of the first semiconductor layer;
a second semiconductor layer arranged on the first semiconductor layer and the metallic material layer; and
a cavity formed in the first portion of the first semiconductor layer directly under the metallic material layer along a line perpendicular to the plane of the substrate,wherein the second semiconductor layer directly contacts a second portion of the first semiconductor layer,wherein the metallic material layer comprises titanium or chromium, andwherein the first semiconductor layer comprises nitrogen.
2 Assignments
0 Petitions
Accused Products
Abstract
The present invention provides a method of manufacturing a semiconductor substrate that includes a substrate, a first semiconductor layer arranged on the substrate, a metallic material layer arranged on the first semiconductor layer, a second semiconductor layer arranged on the first semiconductor layer and the metallic material layer, and a cavity formed in the first semiconductor layer under the metallic material layer.
43 Citations
28 Claims
-
1. A semiconductor substrate, comprising:
-
a substrate; a first semiconductor layer arranged on the substrate; a metallic material layer arranged on a first portion of the first semiconductor layer; a second semiconductor layer arranged on the first semiconductor layer and the metallic material layer; and a cavity formed in the first portion of the first semiconductor layer directly under the metallic material layer along a line perpendicular to the plane of the substrate, wherein the second semiconductor layer directly contacts a second portion of the first semiconductor layer, wherein the metallic material layer comprises titanium or chromium, and wherein the first semiconductor layer comprises nitrogen. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A semiconductor substrate, comprising:
-
a semiconductor layer comprising a first side comprising recessed regions; a plurality of metallic layers spaced apart from each other and arranged in the recessed regions; and a cavity formed in a first portion of the semiconductor layer directly under at least one of the metallic material layers along a line perpendicular to the plane of the substrate, each metallic layer of the plurality of metallic layers comprising a hole that penetrates the metallic layer, wherein the semiconductor layer further comprises a second side opposite the first side, the second side being free of recessed regions, and wherein the semiconductor layer comprises nitrogen. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
-
-
20. A method of manufacturing a semiconductor substrate, the method comprising:
-
forming a first semiconductor layer on a substrate; forming a metallic material layer on the first semiconductor layer; forming a second semiconductor layer directly on the first semiconductor layer and the metallic material layer; and forming a cavity in a portion of the first semiconductor layer directly under the metallic material layer along a line perpendicular to the plane of the substrate, wherein the metallic material layer comprises titanium or chromium, and wherein the first semiconductor layer comprises nitrogen. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28)
-
Specification