Patent ID: 9673073
Date: 2017-06-06
CPC Classifications: B65G,H01L

Claim:
1. A method for manufacturing a semiconductor device by using a semiconductor manufacturing apparatus, comprising steps of: (a) forming a first wiring over a semiconductor substrate; (b) forming an insulating film over the first wiring; (c) forming, in the insulating film, a hole connected to the first wiring and a trench connected to the hole; (d) forming a conductive film over the insulating film in order to fill in the hole and the trench; (e) polishing the conductive film outside the hole and the trench, thereby a second wiring is formed in the trench and a via is formed in the hole; and (f) cleaning surfaces of the insulating film and the second wiring, wherein the step (e) is performed in a polishing chamber of the semiconductor manufacturing apparatus, wherein the step (f) is performed in a cleaning chamber of the semiconductor manufacturing apparatus, wherein, while the semiconductor substrate is moved from the polishing chamber to the cleaning chamber, the presence of the semiconductor substrate is confirmed by using an infrared sensor, and wherein the steps (e) and (f) are performed in the light shielded state.