Patent ID: 9255346
Filing Date: 2016-02-09
CPC Classification: C30B,H01L,Y02E

Claim Text:
1. A method of epitaxially depositing silicon wafers on silicon substrates in an epitaxial reactor, comprising: providing a first plurality of silicon substrates loaded in susceptors, said susceptors being assembled in a substrate carrier, said substrate carrier being configured to hold said silicon substrates with deposition surfaces parallel and opposed on either side of a gas flow channel for exposing the opposed surfaces of said substrates to precursor gas; flowing silicon precursor gas over the surfaces of said silicon substrates, said flow being parallel to said substrate surfaces, said flow being linear between first and second gas manifolds at opposite ends of said substrate carrier; and while flowing precursor gas through said channel, heating said substrate carrier to enable precursor gas dissociation on said substrate surfaces; wherein said substrate carrier has two parallel end caps which define the extent of the flow channel in the direction perpendicular to the gas flow; wherein said providing comprises loading said first plurality of silicon substrates into said susceptors, said loading including placing bottom edges of said substrates into first slots in said susceptors and placing a second slot over the top edges of said substrates, said top and bottom edges being aligned in said substrate carrier perpendicular to the gas flow direction through said gas flow channel, portions of said first and second slots being cantilevered over the top and bottom edges of said substrate for shielding; said top and bottom edges from the gas flow through said gas flow channel.