A convex portion which inclines in the direction of the short side is created by press work along the direction of the short side of a terminal, which extends longitudinally, from one end to the other end, and another terminal is pressed onto the convex portion with pressure and bonded together by electric...http://www.google.se/patents/US7637789?utm_source=gb-gplus-sharePatent US7637789 - Terminal connection structure having one terminal with opposed convex and concave portions
