Patent ID: 8653380
Filing Date: 2014-02-18
Classification: H01L,Y02E

Abstract:
1. A solar cell lead, comprising: a strip plate conductive material; and a solder plating coated on a surface of the strip plate conductive material, the solder plating being configured to be plated in an electrode site of a Si semiconductor substrate, and the coated solder plating comprising a concavo-convex portion on a surface thereof, wherein the concavo-convex portion is formed on the coated solder plating in a solid-liquid coexistence state, thereby, the coated solder plating comprises a 0.2% proof stress of not more than 90 MPa by a tensile test of the solar cell lead, wherein the concavo-convex portion comprises a stripe pattern or a zigzag pattern of concavity in a longitudinal direction of the strip plate conductive material, and wherein, in a plan view, the concavo-convex portion extends across the strip plate conductive material.