High pressure MOCVD reactor system
First Claim
1. A method for growing an epitaxial semiconductor layer on a substrate in an MOCVD reactor chamber, the method comprising the steps of,introducing a substrate at a top portion of the MOCVD reactor chamber,pressurizing one or more reactant gaseous materials to a pressure above one (1) atmosphere,injecting the pressurized reactant gaseous material from a bottom portion of the MOCVD reactor chamber into the MOCVD reactor chamber in an upward flow toward the substrate, andheating the substrate to decompose the pressurized reactant gaseous material and to cause the reactant gaseous material to flow parallel with convective forces toward said substrate, such that the pressurized reactant gaseous material grows an epitaxial layer on the substrate.
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Abstract
An apparatus and method is disclosed for providing vapor-phase epitaxial growth on a substrate using a Metal Organic Chemical Vapor Deposition (MOCVD) process. The process is performed in a reactive chamber pressurized to greater than one atmosphere. The reactant gases to be deposited on the substrate are also pressurized to the equivalent pressure, and then introduced into the reactor chamber. By performing the MOCVD process at a pressure greater than one atmosphere, a reduced amount of reactant gas is required to complete the deposition process.
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12 Claims
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1. A method for growing an epitaxial semiconductor layer on a substrate in an MOCVD reactor chamber, the method comprising the steps of,
introducing a substrate at a top portion of the MOCVD reactor chamber, pressurizing one or more reactant gaseous materials to a pressure above one (1) atmosphere, injecting the pressurized reactant gaseous material from a bottom portion of the MOCVD reactor chamber into the MOCVD reactor chamber in an upward flow toward the substrate, and heating the substrate to decompose the pressurized reactant gaseous material and to cause the reactant gaseous material to flow parallel with convective forces toward said substrate, such that the pressurized reactant gaseous material grows an epitaxial layer on the substrate.
Specification