| abstract |
Disclosed is a leadframe for an optical semiconductor device, wherein a reflecting layer is provided on a part of or whole outermost surface of a base body, said outermost surface being on one side and/or both the sides of the base body. The reflecting layer has, on the outermost surface of a region where at least light emitted from an optical semiconductor element is reflected, a structure wherein at least the surface of a plating structure composed of a metal or an alloy of the metal is mechanically deformed. Also disclosed are a method for manufacturing the leadframe, and an optical semiconductor device provided with the leadframe. |