Patent ID: 6521048
Filing Date: 2003-02-18
Classification: C03C,C23C

Abstract:
A deposition chamber for delivering gases to a substrate, comprising:an injector assembly having at least one injector comprised of a single member having end surfaces and at least one elongated gas delivery surface extending along the length of the member for delivering gases to the substrate, said gas delivery surface having rounded side regions and a center recessed region; at least two vent blocks, each vent block having end and side surfaces and at least one elongated external surface extending along the length of the vent block, at least one of said side surfaces having a contoured side region, and said vent block being positioned adjacent and spaced from said injector member to define an exhaust channel there between, said exhaust channel having a rounded portion formed between said rounded and contoured regions for removing said gas in a substantially uniform manner; a support for supporting and moving a substrate, where said support, and each injector and at least two vent blocks form a deposition region there between for processing said substrate, wherein said injector includes a plurality of first elongated passages formed in said single member and extending between the end surfaces for receiving a gas, and a plurality of first thin, spaced, elongated distribution slots, one of said plurality of slots extending directly between each of said first elongated passages and the center recessed region of said gas delivery surface for carrying the gases directly from the respective passage to the gas delivery surface, wherein at least one of said vent blocks includes at least one second elongated passage formed in said vent block and extending between the end surfaces for receiving an etchant species, and at least a second thin, elongated distribution slot extending directly between said second elongated passage and the external surface for carrying the etchant species from said elongated passage for distribution along the elongated external surface; and a gas inlet, placed remote from said injector assembly, wherein said gas inlet injects gases into said injector assembly, and the gases are removed through said exhaust channels, thereby creating an inwardly flowing purge which acts to isolate said deposition regions.