<p>The printed circuit board has a hole (2) through an insulating substrate (1), a conducting track structure on the second side of the substrate, an island (5) near the hole on the first side, a connecting conductor (6) in the hole connecting the island to the conducting track structure and an electrical component soldered onto the island. The island and connecting conductor are made of the same conductor contg. silver. A section (7) for closing the through hole nearer the first side can be made from the same conductor</p>
