Patent ID: 7176124

Claim:
A method for fabricating an electronic device, comprising: a step of forming a first conductor to become a wiring or a wiring plug in a first insulating film; a step of forming a second insulating film on said first insulating film and said first conductor and, after that, forming a hole reaching the top face of said first conductor in said second insulating film; a step of forming a first barrier metal film on a bottom and side walls of said hole and on said second insulating film; a step of removing a portion formed on the bottom of said hole in said first barrier metal film to thereby expose the top face of said first conductor; a step of performing a plasma process using a reducing gas after the step of exposing the top face of said first conductor; and a step of forming a second conductor to become a wiring plug or a wiring by filling a conductive film in said hole after the step of performing said plasma process.