CONNECTION STRUCTURE OF ELECTRODE

摘要

PROBLEM TO BE SOLVED: To provide a connection structure of an electrode which can secure a junction area even if positions of a first electrode plate at the chip side and a second electrode plate at the external terminal side are misaligned.SOLUTION: A lower electrode plate 30 at the chip side is connected with an upper electrode plate 50 at the external terminal side through an intermediate member 40. A through hole 51 is formed at the upper electrode plate 50, and a protrusion 41 inserted into the through hole 51 is formed at the lower electrode plate 30. At least a space between inner surfaces of the protrusion 41 and the through hole 51 is filled with solder 140.