Abstract: An electromagnetic coupler has a first conductor pattern and a second conductor pattern separated from the first conductor pattern that are formed in a first plane, a feeding pattern made of a conductor and being connected to a feeing system and a ground made of a conductor and being separated from the feeding pattern that are formed in a second plane, and linear conductors electrically connecting between the first conductor pattern and the feeding pattern, and between the second conductor pattern and the ground, respectively.

Abstract: A solar cell lead wire includes a conducting material, and a molten solder plated layer formed on the conducting material. The conducting material includes a concave-convex conducting material that includes a concavity on top and under surfaces thereof, respectively, and a convexity on a side surface thereof, and that is formed by die processing a strip-shaped conducting material, and the molten solder plated layer comprises a flat surface formed by supplying a molten solder to the concavity of the concave-convex conducting material.

Abstract: A metallic material is rolled to provide a conductor 3 having a rectangular cross section. A surface of the rectangular conductor 3 is plated with a plating layer 14. A thickness of the plating layer 14 at a surface facing to the Si cell is not more than 5 ?m to provide a connecting lead wire 12 for a solar battery. The connecting lead wire 12 for a solar battery has 0.2% proof stress of not more than 60 MPa. The connecting lead wire 12 for a solar battery is connected to a predetermined contact region of a Si cell 1 of a solar battery at a high temperature.

Abstract: A metallic material is rolled to provide a conductor 3 having a rectangular cross section. A surface of the rectangular conductor 3 is plated with a plating layer 14. A thickness of the plating layer 14 at a surface facing to the Si cell is not more than 5 ?m to provide a connecting lead wire 12 for a solar battery. The connecting lead wire 12 for a solar battery has 0.2% proof stress of not more than 60 MPa. The connecting lead wire 12 for a solar battery is connected to a predetermined contact region of a Si cell 1 of a solar battery at a high temperature.