Patent ID: 7652375
Filing Date: 2010-01-26
Classification: H01L

Abstract:
1. A semiconductor device comprising: an insulating film; an electro-conductive member provided in said insulating film; a first electronic circuit component provided on a first surface side of said insulating film, and electrically connected to said electro-conductive member via a first solder; a second electronic circuit component provided on a second surface side, which is opposite to said first surface side, of said insulating film, and electrically connected to said electro-conductive member via a second solder; a first diffusion barrier metal film provided between said electro-conductive member and said first solder, and preventing diffusion of said first solder; a second diffusion barrier metal film constituting at least a part of said electro-conductive member, and preventing diffusion of said second solder; and an adhesive metal film provided on said first surface side of said insulating film and on said electro-conductive member as being brought into contact with said insulating film and said electro-conductive member, said adhesive metal film having stronger adhesiveness to said insulating film than adhesiveness of said first solder to said insulating film and adhesiveness of said first diffusion barrier metal film to said insulating film.