Patent ID: 9263318
Filing Date: 2016-02-16
CPC Classification: H01L

Claim Text:
1. A method of forming a laminated semiconductor film which is constituted by alternately laminating first and second semiconductor films on an underlying film of each of a plurality of substrates to be processed, the method comprising: performing a first operation of forming the first semiconductor film and a second operation of forming the second semiconductor film until a predetermined number of laminated films are obtained, wherein a film forming temperature in the first operation and a film forming temperature in the second operation are set to be equal to each other, and temperatures between the first and second operations are set to be constant, wherein gas containing a material which is desorbed from the first and second semiconductor films during the formation thereof is employed as a purge gas to be used between the first and second operations, and wherein when each of the first and second semiconductor films is a silicon film, the gas containing the material desorbed from the first and second semiconductor films is a hydrogen-containing gas.