Patent ID: 9153490
Filing Date: 2015-10-06
Classification: H01L

Abstract:
1. A manufacturing method of a semiconductor device, comprising: forming a first circuit substrate on which a first wiring is provided; forming a second circuit substrate on which a second wiring is provided; facing said first circuit substrate to an upper face of said second circuit substrate, and layering and bonding thereto; forming a first opening on an upper face of said first wiring on a layered body of said first circuit substrate and said second circuit substrate, and forming a second opening on an upper face of said second wiring, wherein said first opening extends along a first line through an entire thickness of said first circuit substrate, and a portion of a first wiring layer that includes the first wiring, and wherein said second opening extended along a second line through all of said first semiconductor substrate, an entire thickness of the first wiring layer that includes the first wiring, and a portion of a second wiring layer that includes the second wiring; forming a connecting conductive layer by filling in a metallic material within said first opening and said second opening to provide a first plug and a second plug, wherein the first plug is in electrical contact with the first wiring, and wherein said second plug is in electrical contact with said second wiring, and wherein said first line is separate and spaced apart from said second line within a plane parallel to the upper face of said second circuit substrate, and to provide connective wiring to electrically connect said first plug and said second plug, wherein said connective wiring is formed adjacent a first surface of the first circuit substrate on a side of the first circuit substrate that is opposite said second circuit substrate, wherein said connective wiring extends along a third line that is perpendicular to the first and second lines and that is parallel to the first surface of the first circuit substrate, and wherein said first wiring is electrically connected to said second wiring through said first plug, said connecting conductive layer, and said second plug; forming a passivation film so as to cover an upper face of said connective wiring in said connecting conductive layer; wherein, in said forming of said passivation film, said passivation film is formed by forming an insulating film of one of SiO