Patent ID: 8298629
Filing Date: 2012-10-30
Classification: C23C,C30B

Abstract:
1. A method for simultaneously depositing semiconductor films by chemical vapor deposition in depletion mode on a multiplicity of substrates in a reactor system, deposition gases being nonlinearly depleted along a flow path across the substrates, the nonlinear depletion enabling efficient consumption of deposition gases in a single pass of said deposition gas through said reactor system, said method comprising: detachably mounting said multiplicity of substrates on inner surfaces of a pair of wafer carrier plates; assembling said pair of wafer carrier plates with said multiplicity of substrates detachably mounted thereon into a wafer sleeve, said pair of wafer carrier plates being parallel and said inner surfaces being opposed; inserting said wafer sleeve into a deposition module of said reactor system for depositing films; radiantly heating said wafer carrier plates from outside of said wafer sleeve; flowing a deposition gas through said wafer sleeve in a first direction, wherein said deposition gas is depleted nonlinearly in the flow along said first direction and wherein said radiantly heating is controlled to provide a non-uniform carrier plate temperature along said first direction to compensate for the nonlinear process gas depletion for linearizing the decreasing deposition rate on the surfaces of said multiplicity of substrates along said first direction; and after depositing films in said deposition module, removing said wafer sleeve from said deposition module and cooling said wafer sleeve in a cool down module; wherein said reactor system comprises said deposition module and said cool down module.