Author Archives: Applied Science

Underwater laser cutting and silver sintering to make ceramic circuit boards

Thermal stress cracking can bepletely avoided by CO2 laser cutting thin alumina sheets underwater. I also show how to formulate and apply silver paste, then sinter in a kiln to produce double-sided ceramic printed circuit boards with conductive vias. 60W CW CO2 laser at 80% power. 10mm/sec. Standard lens focal length (50mm). 2mm water above […]

Make plastic printed circuits with a standard laser cutter,Applied Science

I developed a new chemical process to make double-sided PCBs with a laser cutter, and some common chemicals. This is intended to be used on SLA 3D-printed parts, but may work on many materials. Refs: Support Applied Science: Applied Science #plastic #printed #circuits #standard #laser #cutter