Patent ID: 8822338
Filing Date: 2014-09-02
Classification: C23C,H01L

Abstract:
1. A chemical vapor deposition (CVD) apparatus, comprising: a reaction chamber including an inner pipe having an internal space, and an external pipe configured to cover the inner pipe so as to maintain a sealing state thereof; a wafer holder disposed within the inner pipe and receiving a plurality of wafers stacked therein; a heater disposed at the outside of and separate from the reaction chamber therefrom, the heater being configured for heating the reaction chamber; and a gas supplier including at least one stem pipe disposed at the outside of the reaction chamber so as to supply a reactive gas, a plurality of branch pipes connected to the at least one stem pipe and extending through the heater and configured to introduce the reactive gas from the outside of the reaction chamber into the reaction chamber through the heater, and a plurality of spray nozzles provided with the branch pipes to spray the reactive gas to the plurality of respective wafers.