发明授权
US5914050A Purged lower liner 失效
清洗下层衬垫

Purged lower liner
摘要:
Chemical vapor deposition apparatus 10 which includes a chemical vapor deposition processing chamber 12 having a base ring 18 and upper and lower quartz windows 20 and 22, and a quartz liner 26 lining the base ring 18, wherein a purge channel 46 is formed, in an outer surface of the liner 26, to remove contaminant material from an interface between the base ring 18 and the liner 26.
信息查询
0/0