METHOD FOR CLEANING GAS CONVEYING DEVICE, AND METHOD AND REACTION DEVICE FOR FILM GROWTH

摘要

A method for cleaning a gas conveying device in a film growth reaction chamber is provided. The gas conveying device comprises a gas conveying surface for releasing reaction gas to the film growth reaction chamber. The film growth reaction chamber comprises a support device. The method comprises that a) a cleaning device is provided and separably installed on the support device, said cleaning device comprising a surface which is facing to the gas conveying surface and on which multiple scraping structures are distributed; b) a rotation drive device is provided, which is connected to the support device and can selectively drive the support device to rotate; c) the position of the cleaning device is adjusted so that the scraping structures contact with, at least in part, the gas conveying surface of the gas conveying device; and d) the rotation drive device is rotated to drive the cleaning device to rotate, and the scraping structures contact the gas conveying surface and remove attachments from the gas conveying surface.