摘要:
Embodiments of methods for depositing silicon germanium (SiGe) layers on a substrate are disclosed herein. In some embodiments, the method may include depositing a first layer comprising silicon and germanium (e.g., a seed layer) atop the substrate using a first precursor comprising silicon and chlorine; and depositing a second layer comprising silicon and germanium (e.g., a bulk layer) atop the silicon germanium seed layer using a second precursor comprising silicon and hydrogen. In some embodiments, the first silicon precursor gas may comprise at least one of dichlorosilane (H2SiCl2), trichlorosilane (HSiCl3), or silicon tetrachloride (SiCl4). In some embodiments, the second silicon precursor gas may comprise at least one of silane (SiH4), or disilane (Si2H6).
摘要:
Apparatus for use with multi-zonal heating sources are provided. In some embodiments, a substrate support may have a pocket disposed in a surface of the substrate support and a lip disposed about the pocket to receive an edge of a substrate and to support the substrate over the pocket such that a gap is defined between a pocket surface and a backside surface of the substrate when the substrate is disposed on the lip; a plurality of features to operate in combination with a plurality of heating zones provided by a multi-zonal heating source to provide a desired temperature profile on a frontside surface of a substrate when the substrate is disposed on the lip, and wherein the plurality of features are alternatingly disposed above and below a baseline surface profile of the pocket surface in a radial direction from a central axis of the substrate support.
摘要:
Methods are disclosed for adjusting the temperature of at least a portion of the surface of a reaction chamber during a film formation process to control film properties. More than one portion of the chamber surface may be temperature-modulated, and may be accomplished by actively keeping the temperature of a first wall of the reaction chamber above the temperature of a second wall during the film formation process.
摘要:
Methods and apparatus are disclosed for the formation and utilization of metastable specie in a reaction chamber for processing substrates. The metastable specie may be used for etching the surface of substrates in situ, deposition processes during processing of the substrate.
摘要:
Methods and apparatus for processing a substrate are provided herein. In some embodiments, a method of processing a substrate may include providing a substrate having at least one of a defect or a contaminant disposed on or near a surface of the substrate; and selectively annealing a portion of the substrate with a laser beam in the presence of a process gas comprising hydrogen. The laser beam may be moved over the substrate or continuously, or in a stepwise fashion. The laser beam may be applied in a continuous wave or pulsed mode. The process gas may further comprise an inert gas, such as, at least one of helium, argon, or nitrogen. A layer of material may be subsequently deposited atop the annealed substrate.
摘要:
A bi-layer silicon electrode and its method of fabrication is described. The electrode of the present invention comprises a lower polysilicon film having a random grain microstructure, and an upper polysilicon film having a columnar grain microstructure.
摘要:
Embodiments of the invention generally provide a method for depositing a film containing silicon (Si) and nitrogen (N). In one embodiment, the method includes heating a substrate disposed in a processing chamber to a temperature less than about 650 degrees Celsius, flowing a nitrogen-containing gas into the processing chamber, flowing a silicon-containing gas into the processing chamber, and depositing a SiN-containing layer on a substrate. The silicon-containing gas is at least one of a gas identified as NR2—Si(R′2)—Si(R′2)—NR2 (amino(di)silanes), R3—Si—N═N═N (silyl azides), R′3—Si—NR—NR2 (silyl hydrazines) or 1,3,4,5,7,8-hexamethytetrasiliazane, wherein R and R′ comprise at least one functional group selected from the group of a halogen, an organic group having one or more double bonds, an organic group having one or more triple bonds, an aliphatic alkyl group, a cyclical alkyl group, an aromatic group, an organosilicon group, an alkyamino group, or a cyclic group containing N or Si.
摘要:
Methods of depositing layers having reduced interfacial contamination are disclosed herein. The inventive methods may advantageously reduce contamination at the interface between deposited layers, for example, between a deposited layer and an underlying substrate or film. In some embodiments, a method of depositing a layer may include annealing a silicon-containing layer having a first layer disposed thereon in a reducing atmosphere; removing the first layer using an etching process to expose the silicon-containing layer after annealing; and depositing a second layer on the exposed silicon-containing layer.
摘要:
Methods for depositing germanium-containing layers on silicon-containing layers are provided herein. In some embodiments, a method may include depositing a first layer atop an upper surface of the silicon-containing layer, wherein the first layer comprises predominantly germanium (Ge) and further comprises a lattice adjustment element having a concentration selected to enhance electrical activity of dopant elements, wherein the dopant elements are disposed in at least one of the first layer or in an optional second layer deposited atop of the first layer, wherein the optional second layer, if present, comprises predominantly germanium (Ge). In some embodiments, the second layer is deposited atop the first layer. In some embodiments, the second layer comprises germanium (Ge) and dopant elements.
摘要:
Embodiments of methods for depositing silicon germanium (SiGe) layers on a substrate are disclosed herein. In some embodiments, the method may include depositing a first layer comprising silicon and germanium (e.g., a seed layer) atop the substrate using a first precursor comprising silicon and chlorine; and depositing a second layer comprising silicon and germanium (e.g., a bulk layer) atop the silicon germanium seed layer using a second precursor comprising silicon and hydrogen. In some embodiments, the first silicon precursor gas may comprise at least one of dichlorosilane (H2SiCl2), trichlorosilane (HSiCl3), or silicon tetrachloride (SiCl4). In some embodiments, the second silicon precursor gas may comprise at least one of silane (SiH4), or disilane (Si2H6).