Patent ID: 7351361

Claim:
An electronic device comprising a conductive composition layer having: a metal or alloy having a melting point of 230° C. or higher, an alloy having a melting point lower than 230° C., wherein a component of said alloy having a melting point lower than 230° C. is the same as said metal or alloy having a melting point of 230° C. or higher; and a thermoset resin and/or thermoplastic resin, wherein at least one portion of the upper surface and one portion of the lower surface of said conductive composition layer are linked to each other by a region of said alloy having a melting point lower than 230° C.; wherein said metal or alloy having a melting point of 230° C. or higher is composed of at least any one material selected from the group consisting of Sn, Bi, and Pb; and wherein said thermosetting resin having a curing temnerature lower than 230° C. and/or said thermoplastic resin having a melting point lower than 230° C., or, alternatively, said thermoset resin and/or thermoplastic resin, is at least one resin selected from the group consisting of epoxy-based, phenolic-based and acrylic-based thermosetting resins or thermoset resins thereof, and polyethylene type, polyester type, polypropylene type and acrylic type thermoplastic resins.