Patent ID: 9099534
Filing Date: 2015-08-04
Classification: H01L

Abstract:
1. A method of forming a semiconductor device, the method comprising: providing a semiconductor substrate; forming a wiring layer on one surface side of the semiconductor substrate, the wiring layer comprising an alloy including at least a first metal and a second metal having different standard electrode potentials; and forming a nitride layer on a surface of the wiring layer in a formation area as at least the formation area is irradiated by plasma generated by a mixture gas of a gas including nitrogen and an inert gas or plasma generated by a gas including nitrogen, wherein, in the formation area, the surface of the wiring layer is divided into two-dimensional regions including first regions and second regions and the nitride layer includes a first type of nitride in contact with the surface of the wiring layer in the first regions and a second type of nitride in contact with the surface of the wiring layer in the second regions, wherein the first type of nitride contains the first metal and the second type of nitride contains the second metal.