Heterostructure including anodic aluminum oxide layer
First Claim
Patent Images
1. A semiconductor heterostructure comprising:
- an active region configured to emit radiation;
a first semiconductor layer located on a first side of the active region;
an anodic aluminum oxide layer immediately adjacent to the first semiconductor layer, wherein the anodic aluminum oxide layer includes a plurality of pores extending only to an adjacent surface of the first semiconductor layer, wherein an entire bottom portion of each of the plurality of pores interfaces with the adjacent surface of the first semiconductor layer;
a layer of a first material immediately adjacent to the anodic aluminum oxide layer, wherein the layer of first material covers the plurality of pores, penetrates a first subset of the plurality of pores, and directly contacts the adjacent surface of the first semiconductor layer; and
a second material penetrating a second subset of the plurality of pores distinct from the first subset, wherein the second material is distinct from the first material.
1 Assignment
0 Petitions
Accused Products
Abstract
A semiconductor structure including an anodic aluminum oxide layer is described. The anodic aluminum oxide layer can include a plurality of pores extending to an adjacent surface of the semiconductor structure. A filler material can penetrate at least some of the plurality of pores and directly contact the surface of the semiconductor structure. In an illustrative embodiment, multiple types of filler material at least partially fill the pores of the aluminum oxide layer.
16 Citations
20 Claims
-
1. A semiconductor heterostructure comprising:
-
an active region configured to emit radiation; a first semiconductor layer located on a first side of the active region; an anodic aluminum oxide layer immediately adjacent to the first semiconductor layer, wherein the anodic aluminum oxide layer includes a plurality of pores extending only to an adjacent surface of the first semiconductor layer, wherein an entire bottom portion of each of the plurality of pores interfaces with the adjacent surface of the first semiconductor layer; a layer of a first material immediately adjacent to the anodic aluminum oxide layer, wherein the layer of first material covers the plurality of pores, penetrates a first subset of the plurality of pores, and directly contacts the adjacent surface of the first semiconductor layer; and a second material penetrating a second subset of the plurality of pores distinct from the first subset, wherein the second material is distinct from the first material. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. An optoelectronic device comprising:
a heterostructure including; an active region configured to emit radiation during operation of the device; an anodic aluminum oxide layer located on a first side of the active region immediately adjacent to a first semiconductor layer in the heterostructure, wherein the anodic aluminum oxide layer includes a plurality of pores extending entirely through the anodic aluminum oxide layer only to an adjacent surface of the first semiconductor layer in the heterostructure, wherein an entire bottom portion of each of the plurality of pores interfaces with the adjacent surface of the first semiconductor layer; and a first filler material penetrating only a first subset of the plurality of-pores of the anodic aluminum oxide layer and directly contacting the adjacent surface of the first semiconductor layer, wherein a second subset of the plurality of pores distinct from the first subset are not penetrated by the first filler material. - View Dependent Claims (12, 13, 14, 15, 16)
-
17. A method of fabricating an optoelectronic device, the method comprising:
forming a heterostructure for the optoelectronic device, wherein the forming includes; forming an active region configured to emit radiation during operation of the device; forming an anodic aluminum oxide layer located on a first side of the active region immediately adjacent to a first semiconductor layer in the heterostructure, wherein the anodic aluminum oxide layer includes a plurality of pores extending entirely through the anodic aluminum oxide layer only to an adjacent surface of the first semiconductor layer in the heterostructure, wherein an entire bottom portion of each of the plurality of pores interfaces with the adjacent surface of the first semiconductor layer; and causing a first filler material to penetrate only a first subset of the plurality of pores of the anodic aluminum oxide layer and directly contact the adjacent surface of the first semiconductor layer, wherein a second subset of the plurality of pores distinct from the first subset are not penetrated by the first filler material. - View Dependent Claims (18, 19, 20)
Specification