Metal-Aluminum Alloy Films From Metal Amidinate Precursors And Aluminum Precursors
First Claim
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1. A method of depositing a metal-aluminum layer, the method comprising:
- exposing a substrate surface to pulses of an amidinate precursor and an aluminum precursor to form a metal-aluminum layer on the substrate surface, wherein the amidinate precursor comprises a p or f-block metal and the aluminum precursor comprises an alkyl aluminum precursor or an amine alane, and with the proviso that the substrate surface is not exposed to an oxidant during formation of the metal-aluminum layer.
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Abstract
Described are methods for deposition of metal-aluminum films using metal amidinate precursors and aluminum precursors. Such metal-aluminum films can include metal aluminum carbide, metal aluminum nitride and metal aluminum carbonitride films. The aluminum precursors may be alkyl aluminum precursors or amine alanes.
36 Citations
20 Claims
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1. A method of depositing a metal-aluminum layer, the method comprising:
exposing a substrate surface to pulses of an amidinate precursor and an aluminum precursor to form a metal-aluminum layer on the substrate surface, wherein the amidinate precursor comprises a p or f-block metal and the aluminum precursor comprises an alkyl aluminum precursor or an amine alane, and with the proviso that the substrate surface is not exposed to an oxidant during formation of the metal-aluminum layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 18, 19, 20)
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16. A method of depositing a metal-aluminum layer by atomic layer deposition, the method comprising:
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sequentially exposing a substrate surface to alternating pulses of a metal amidinate precursor and an aluminum precursor to form a metal-aluminum layer on the substrate surface, with the proviso that the substrate surface is not exposed to an oxidant during formation of the metal-aluminum layer, wherein the metal amidinate precursor has a structure represented by; - View Dependent Claims (17)
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Specification