Patent ID: 6164963
Filing Date: 2000-12-26
Classification: C30B,H01L

Abstract:
A base plate assembly configured to mate in sealed relation with a bottom end of a process tube in a vertical thermal processor, the base plate assembly comprising:a base support having a top face and a circumferential seat on the top face;a seal assembly on the seat, said seal assembly constructed and arranged to mate in sealing engagement with the bottom end of the process tube when the process tube is brought into abutting engagement with said seal assembly; anda liner supported by the base support in sealing engagement with said seal assembly, said liner adjoining a processing chamber within the process tube when the process tube is brought into abutting engagement with said seal assembly, said liner comprising a substantially inert material wherein the resulting sealed processing chamber provided between the base support and process tube has an interior surface formed from substantially inert material.