Patent ID: 6461436
Filing Date: 2002-10-08
Classification: C23C

Abstract:
An atomic layer deposition apparatus comprising:a process reactor chamber including a first precursor inlet, a second precursor inlet, and a chamber outlet; a first dispensing valve coupled to said first precursor inlet of said process reactor chamber; a second dispensing valve coupled to said second precursor inlet of said process reactor chamber; an isolation valve directly coupled to said chamber outlet of said process reactor chamber; an exhaust fore-line; an exhaust pump coupled to said isolation valve by said exhaust fore-line wherein said isolation valve, said exhaust fore-line, and said exhaust pump are arranged to define an exhaust path isolated from said reactor chamber when said isolation valve is in a closed state; and a dispensing fore-line comprising a first end and a second end, wherein said fist end is coupled to said first dispensing valve and said second end is coupled to said exhaust path.