CLEANING METHOD OF PROCESSING CHAMBER OF MAGNETIC FILM, MANUFACTURING METHOD OF MAGNETIC DEVICE, AND SUBSTRATE TREATMENT APPARATUS

摘要

The present invention provides a manufacturing method of a multilayer film, a manufacturing method of a magnetoresistance effect device, and a substrate treatment apparatus, capable of shortening the time of a cleaning step. In one embodiment of the present invention, the inside of an etching apparatus is cleaned by plasma of a mixed gas containing H2 gas and O2 gas between processes. This shortens the cleaning time to improve the productivity.