Printed circuit board for use in e.g. lighting device of car, has pair of openings formed in metal layer to retain solder mass locally delimiting conducting pad to form localized conducting pad, which is extended between edges of openings

摘要

The board has a dielectric substrate (36) covered by a metal layer (38) primarily comprising copper. A conducting zone of a free surface of the metal layer forms a rectangular conducting pad (40) to receive a solder mass (54). A pair of openings (44) are formed in the metal layer to retain the solder mass locally delimiting the conducting pad to form a localized conducting pad, which narrows the solder mass and is extended between two retaining edges (44B) of the openings. A connection pin (52) of an LED (32) is soldered on the conducting pad. An independent claim is also included for a method for manufacturing a printed circuit board.