Doped Metal Oxide Films and Systems for Fabricating the Same
First Claim
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1. A method of fabricating a doped metal oxide film comprising the steps of:
- (a) providing a semiconductor substrate in a vacuum chamber;
(b) generating plasma comprising at least metal (M), oxygen (O), and dopant ions within said chamber in the presence of an inert carrier gas;
(c) forming a doped metal oxide (MO) film on said substrate from said plasma;
(d) controlling, during step (c), the amount of O ions relative to said metal ions within said plasma to form at least one of an n-type MO film and a p-type MO film on said substrate; and
(e) selecting said dopant that comprises phosphorous (P).
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Abstract
A method of fabricating a doped metal oxide film comprising the steps of: (a) providing a semiconductor substrate in a vacuum chamber; (b) generating plasma comprising at least metal (M) , oxygen (O) and dopant ions within said chamber in the presence of an inert carrier gas; (c) forming a doped metal oxide (MO) film on said substrate from said plasma; and (d) controlling, during step (c) , the amount of O ions relative to said dopant ions within said plasma to form at least one of an n-type MO film and a p-type MO film on said substrate. A system for fabricating the doped metal oxide is also disclosed.
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Citations
54 Claims
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1. A method of fabricating a doped metal oxide film comprising the steps of:
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(a) providing a semiconductor substrate in a vacuum chamber; (b) generating plasma comprising at least metal (M), oxygen (O), and dopant ions within said chamber in the presence of an inert carrier gas; (c) forming a doped metal oxide (MO) film on said substrate from said plasma; (d) controlling, during step (c), the amount of O ions relative to said metal ions within said plasma to form at least one of an n-type MO film and a p-type MO film on said substrate; and (e) selecting said dopant that comprises phosphorous (P). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A system for fabricating a doped-metal oxide (MO) film comprising:
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a vacuum chamber having a mount for mounting a semi-conductor substrate therein; a plasma generator capable of generating plasma from one or more targets, said plasma comprising at least metal (M), oxygen (O) and dopant ions, wherein said dopant comprises phosphorous; at least one gas conduit for supplying gas into said chamber; a controller for controlling the supply of said gas to said chamber and for controlling said plasma generator; wherein in use, a semi-conductor substrate is mounted on said mount and an inert carrier gas is supplied to said chamber via said gas conduit, and wherein said controller operates said plasma generator to form plasma comprising at least metal (M), oxygen (O) and dopant ions to form a doped MO film layer on said mounted substrate, and wherein the amount of O ions relative to M ions within said plasma is controlled to form at least one of an n-type MO film and a p-type MO film on said substrate. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. A method of fabricating a phosphorous-doped zinc oxide (ZnO) film comprising the steps of:
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(a) providing a semiconductor substrate in a vacuum chamber; (b) generating plasma comprising at least zinc (Zn), oxygen (O) and phosphorous (P) ions within said chamber in the presence of an inert carrier gas; (c) forming a phosphorous doped ZnO film layer on said substrate from said plasma; and (d) controlling, during step (c), the amount of O ions relative to Zn ions within said plasma to form at least one of an n-type ZnO film and a p-type ZnO film on said substrate. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42)
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43. A system for fabricating a phosphorous doped zinc oxide (ZnO) film comprising:
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a vacuum chamber having a mount for mounting a semi-conductor substrate therein; a plasma generator capable of generating plasma from one or more targets, said plasma comprising at least zinc (Zn), oxygen (O) and phosphorous (P) ions; at least one gas conduit for supplying gas into said chamber; a controller for controlling the supply of said gas to said chamber and for controlling said plasma generator; wherein in use, a semi-conductor substrate is mounted on said mount and an inert carrier gas is supplied to said chamber via said gas conduit, and wherein said controller operates said plasma generator to form plasma comprising at least zinc (Zn), oxygen (O) and phosphorous (P) ions to form a phosphorous doped ZnO film layer on said mounted substrate, and wherein the amount of O ions relative to Zn ions within said plasma is controlled to form at least one of an n-type ZnO film and a p-type ZnO film on said substrate. - View Dependent Claims (44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54)
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Specification