Patent ID: 7579276

Claim:
A substrate processing apparatus comprising: a processing chamber for processing a substrate; a substrate carrying port provided on a sidewall of said processing chamber, for carrying-in/carrying-out said substrate to/from said processing chamber; a holder provided so as to be lifted and lowered in said processing chamber, for holding said substrate; a supply port provided above said holder, for supplying gas into said processing chamber; an exhaust duct provided on the peripheral part of said holder, for exhausting the gas supplied into said processing chamber; and an exhaust port provided below an upper surface of said exhaust duct when the substrate is processed, for exhausting the gas discharged by said exhaust duct outside said processing chamber, wherein said exhaust duct is constituted by a plate having a hollow part that communicates with said processing chamber, and a part of said plate is placed on said holder so as to cover at least a part of an upper surface of said holder.