Patent ID: 8937012
Filing Date: 2015-01-20
Classification: C01B,C23C,H01L

Abstract:
1. A production method for a semiconductor device, the method comprising steps of: (a) forming a polysilicon pattern on a substrate; (b) forming an insulating material on the substrate to cover the polysilicon pattern, the insulating material being formed as a silicon dioxide film or a silicon nitride film; (c) removing the insulating material covering the polysilicon pattern to form an insulating layer, so that the polysilicon pattern is exposed; (d) pre-treating the substrate with a solution containing hydrogen radical to bond hydrogen atoms onto the insulating layer and the polysilicon pattern that are exposed to the substrate; (e) forming a silicon seed layer only over the polysilicon pattern by supplying one or more source gases selected from a group including SiH4, Si2H6, Si3H8 and Si4H10 to an inside of a chamber in which the substrate is loaded, and by regulating a process condition to replace the hydrogen atoms bonded onto the polysilicon pattern with silicon atoms; (f) forming a metal layer on the silicon seed layer and the insulating layer; and (g) forming a metal silicide layer by carrying out a heat treatment only on the polysilicon pattern, wherein the steps (a), (b), (c), (d), (e), (f) and (g) are performed in this order.