Component leads fastening to printed circuit board - involves drilling holes in board leaving conducting layer intact and wires are pushed through and soldered

摘要

Holes are drilled in an insulating board (2) with a thin film circuit on one side, which covers points of the wires fastening. The board is drilled from the other side leaving the conducting layer intact, so that holes are made exactly of the right size for wire insertion, but closed at the other end. The wires are inserted into the holes from their open ends, and pierce the conducting layer, so that their ends project from the board. They are soldered to the conducting layer.