Patent ID: 9401284
Filing Date: 2016-07-26
CPC Classification: H01L

Claim Text:
1. A method for manufacturing a semiconductor device comprising: providing an active layer on an upper face of a substrate; etching selectively the substrate from a lower face of the substrate so as to expose a side face of the substrate; providing a first nickel-plated layer on the lower face of the substrate; providing a copper-plated layer on a lower face of the first nickel-plated layer after providing the first nickel-plated layer; and providing a second nickel-plated layer on a lower face and a side face of the copper-plated layer, a side face of the first nickel-plated layer and the side face of the substrate after providing the copper-plated layer wherein; when a surface area of the substrate is less than 1 mm when the surface area of the substrate is 1 mm when the surface area of the substrate is 9 mm