Abstract:
A plurality of non-isostructural layers are deposited onto a substrate. An inorganic layer is deposited onto the substrate by adsorbing metal atoms to the substrate. The inorganic layer on the substrate is exposed to a hydrocarbon-containing source precursor to deposit a first hydrocarbon-containing layer by adsorbing the hydrocarbon-containing source precursor onto the inorganic layer. The first hydrocarbon-containing layer on the substrate is exposed to a reactant precursor to increase reactivity of the first hydrocarbon-containing layer on the substrate, and a second hydrocarbon-containing layer is deposited onto the first hydrocarbon-containing layer on the substrate. The process may be repeated to deposit the plurality of layers. The second hydrocarbon-containing layer may have higher hydrocarbon content and may be deposited at a higher deposition rate than the first hydrocarbon-containing layer.
Abstract:
A material is deposited onto a substrate by exposing the substrate to a metal-containing precursor to adsorb metal atoms of the metal-containing precursor to the substrate. The substrate injected with the metal-containing precursor is exposed to an organic precursor to deposit a layer of material by a reaction of the organic precursor with the metal atoms adsorbed to the substrate. The substrate is exposed to radicals of a reducing agent to increase reactivity of the material deposited on the substrate. The radicals of the reducing agent are produced by applying a voltage differential with electrodes to a gas such as hydrogen. The substrate may be exposed to radicals before and/or after exposing the substrate to the organic precursor. The substrate may be sequentially exposed to two or more different organic precursors. The material deposited on the substrate may be a metalcone such as Alucone, Zincone, Zircone, Titanicone, or Nickelcone.
Abstract:
A film of source precursor molecules injected onto a substrate are reacted with hydrogen radicals, such as those produced in a hydrogen plasma, prior to reaction with a reactant precursor. This replaces the functional groups of the reactant precursor (e.g., methyl groups in alkyl groups) with hydrogen, thus reducing the overall size of the source precursor molecule. An additional cycle of source precursor molecules are injected onto the substrate, some of which occupy portions of the substrate surface left unoccupied by the now absent methyl functional groups. This increases the density of source precursor molecules (i.e., reaction sites) on the substrate. The reactivity of the source precursor molecules exposed to hydrogen radicals (or an H2 plasma) is also increased.
Abstract:
Embodiments relate to an atomic layer deposition (ALD) process that uses a seed precursor for increased deposition rate. A first reactant precursor (e.g., H2O) may be formed as a result of reaction. The first reactant precursor may react with or substitute source precursor (e.g., 3DMAS) in a subsequent process to deposit material on a substrate. In addition, a second reactant precursor (e.g., radicals) may be separately injected onto the substrate previously injected with the source precursor. By causing the source precursor to react with the first reactant precursor from the surface of the substrate and also react with the second reactant provided by the injector, the material is deposited on the substrate in an expedient manner.
Abstract:
A material is deposited onto a substrate by exposing the substrate to a metal-containing precursor to adsorb metal atoms of the metal-containing precursor to the substrate. The substrate injected with the metal-containing precursor is exposed to an organic precursor to deposit a layer of material by a reaction of the organic precursor with the metal atoms adsorbed to the substrate. The substrate is exposed to radicals of a reducing agent to increase reactivity of the material deposited on the substrate. The radicals of the reducing agent are produced by applying a voltage differential with electrodes to a gas such as hydrogen. The substrate may be exposed to radicals before and/or after exposing the substrate to the organic precursor. The substrate may be sequentially exposed to two or more different organic precursors. The material deposited on the substrate may be a metalcone such as Alucone, Zincone, Zircone, Titanicone, or Nickelcone.