作者: Ken Ninomiya , Shigeru Nishimatsu , Keizo Suzuki , Sadayuki Okudaira
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摘要: In a dry-processing apparatus adapted for vapor phase deposition or etching, the processing space in its chamber is covered with cooled member provided trapping reflecting active particles and preventing degassing, thereby permitting gas of high purity substantially free from impurities. The are incident upon workpiece unidirectional flow. Means uniformalyzing direction movement may be further provided. especially useful vertical etching semiconductor substrate neutral radicals.