Patent ID: 8685866

Claim:
A method of manufacturing a semiconductor device comprising: alternately repeating a process of forming a first metal oxide film comprising a first metal element and a process of forming a second metal oxide film comprising a second metal element on a substrate accommodated in a processing chamber, so as to form a third metal oxide film comprising the first and second metal elements with a predetermined composition ratio on the substrate, wherein one metal element of the first and second metal elements of the third metal oxide film has a concentration higher than a concentration of the other metal element of the first and second metal elements, and one of the first and second metal oxide films comprising the higher-concentration metal element is formed in a chemical vapor deposition (CVD) mode or an atomic layer deposition (ALD) saturation mode, and the other of the first and second metal oxide films comprising the other metal element having a lower-concentration is formed in an ALD unsaturation mode.