LEAD PIN FOR PRINTED CIRCUIT BOARD AND PRINTED CIRCUIT BOARD USING THE SAME

摘要

PURPOSE: A lead pin for printed circuit board and a printed circuit board using the same are provided to increase contacts surface between a lead pin and a solder unit. CONSTITUTION: A pin head unit(110) is formed in one end of an interface pin(120). A protrusion is formed in the outer circumference of the pin head unit. The protrusion has a projecting shape. The protrusion includes a first protrusion. The first protrusion has a stepped structure based on contact surface of a connection pin.