Most of us who have dabbled a little in electronics will have made our own printed circuit ... boards. Some operations are very different from those you’d do at home, for example the holes ...

As demand for next-generation semiconductor chips grows, a team of researchers has succeeded in laser-drilling the world's tiniest circuit board holes, measuring a near-inconceivable 3 micrometers ...

Components that can be soldered directly to a board rather than having to be pushed through a hole. is used to place electrical components on top of circuit boards.