Substrate processing apparatus and method

Coating apparatus – Gas or vapor deposition – With treating means

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Details

118715, 118725, 4272481, 42725523, 432241, C23C 1600

Patent

active

061396427

ABSTRACT:
A substrate processing apparatus and method restrains outside air and gas-phase backward flow from entering the inside of a reaction chamber during a time period that the inside of the reaction chamber is opened to the outside through a substrate carrying-in/carrying-out opening. The substrate processing apparatus can comprise, for example, a vertical CVD apparatus having a gas supply system and a bypass line. The gas supply system supplies inert gas to a space between an outer tube and an inner tube of a reaction furnace during a boat loading period and a boat unloading period. The bypass line exhausts the atmosphere from the reaction chamber by a slow exhaust operation during the boat loading period and the boat unloading period.

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