Patent ID: 9163309
Filing Date: 2015-10-20
Classification: C23C,H01J,H01L

Abstract:
1. A substrate processing apparatus comprising: a process chamber configured to process a substrate; a shower head including a buffer chamber; a first exhaust system configured to exhaust an atmosphere of the buffer chamber; a first-element-containing gas supply system configured to supply a first-element-containing gas to the substrate via the buffer chamber; a second-element-containing gas supply system configured to supply a second-element-containing gas to the substrate via the buffer chamber; a second exhaust system configured to exhaust an atmosphere of the process chamber; and a control unit configured to control the first exhaust system, the first-element-containing gas supply system, the second-element-containing gas supply system and the second exhaust system to perform: (a) loading the substrate into the process chamber; (b) supplying the first-element-containing gas via the buffer chamber of the shower head to the substrate placed in the process chamber; (c) supplying the second-element-containing gas to the substrate via the buffer chamber, and (d) performing an exhaust process between (b) and (c), wherein (d) includes a buffer chamber exhaust process of exhausting the atmosphere of the buffer chamber using the first exhaust system and a process chamber exhaust process of exhausting the atmosphere of the process chamber using the second exhaust system after the buffer chamber exhaust process.