Patent ID: 8288295

Claim:
A manufacturing method of a semiconductor device, comprising: a step of supplying reactive plasma on a surface of a dielectric thin film in which a plurality of pores are arranged around a skeleton mainly made of a Siâ€”O bond, to perform a pretreatment; a step of forming a conductive film on the surface of the pretreated dielectric thin film by a sputtering method; and before the pretreatment step, bringing a gas containing at least one selected from tetramethylcyclotetrasiloxane (TMCTS), hexamethyldisilazane (HMDS), and trimethylchlorosilane (TMCS) molecules into contact with the surface of the dielectric thin film, wherein the step of bringing the gas into contact includes: a step of placing the semiconductor device having the dielectric thin film in a plasma chamber, and replacing inside of the plasma chamber with an inert gas; a step of introducing the gas containing at least one selected from tetramethylcyclotetrasiloxane (TMCTS), hexamethyldisilazane (HMDS), and trimethylchlorosilane (TMCS) molecules in the plasma chamber; and after a predetermined time period passed after the step of introducing the gas, a step of replacing the as with an inert gas.