Method of manufacturing gallium nitride based high-electron mobility devices
First Claim
Patent Images
1. A method of manufacturing a heterojunction device comprising:
- forming a first layer of p-type AlxGa(1-x)N;
forming a second layer of undoped GaN on the first layer;
forming a third layer of nominally undoped AlxGa(1-x)N on the second layer, to provide an electron gas between the second and third layers.
4 Assignments
0 Petitions
Accused Products
Abstract
A method of manufacturing a heterojunction device includes forming a first layer of p-type aluminum gallium nitride; forming a second layer of undoped gallium nitride on the first layer; and forming a third layer of aluminum gallium nitride on the second layer, to provide an electron gas between the second and third layers. A heterojunction between the first and second layers injects positive charge into the second layer to compensate and/or neutralize negative charge within the electron gas.
44 Citations
24 Claims
-
1. A method of manufacturing a heterojunction device comprising:
-
forming a first layer of p-type AlxGa(1-x)N;
forming a second layer of undoped GaN on the first layer;
forming a third layer of nominally undoped AlxGa(1-x)N on the second layer, to provide an electron gas between the second and third layers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
-
-
19. A method of manufacturing a double heterojunction device comprising:
-
forming a first layer of intrinsic GaN having a first surface and a second surface opposite the first surface;
forming a second layer of nominally undoped AlxGa(1-x)N on the first surface of the first layer, to provide an electron gas between the first and second layers, the electron gas comprised of negative charge provided by the second layer; and
forming a third layer of p-type AlxGa(1-x)N on the second surface of the first layer, that provides positive charge to the first layer to neutralize charge within the electron gas. - View Dependent Claims (20, 21, 22, 23, 24)
-
Specification