Patent ID: 6379466
Filing Date: 2002-04-30
Classification: C23C,F28F

Abstract:
An apparatus, comprising:a chemical vapor deposition chamber; a gas injection cover member having a process gas inlet in communication with said chemical vapor deposition chamber and a coolant system configured to cool said process gas inlet; a gas distribution plate interconnected to said gas injection cover member and including: a plate member having at least one gas distribution hole therethrough configured to permit process gas to pass therethrough, said plate member formed from a base part and a cover plate part; a liquid coolant passage being formed as a channel disposed in said base part to permit the movement of a coolant liquid therethrough, and said cover plate part being fixedly engaged to said base part to form a sealed cover to said channel, whereby said liquid coolant passage is formed within said plate member; a liquid inlet being engaged to said plate member and communicating with said liquid coolant passage; and a liquid outlet being engaged to said plate member and communicating with said liquid coolant passage.