US Patent Issued to CATLAM on Dec. 30 for "Semi-additive process for catalytic printed circuit boards" (California Inventors)

ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,513,827, issued on Dec. 30, was assigned to CATLAM LLC (Sunnyvale, Calif.).

"Semi-additive process for catalytic printed circuit boards" was invented by Kenneth S. Bahl (Saratoga, Calif.) and Konstantine Karavakis (Pleasanton, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A process for fabricating a circuit board uses a catalytic dielectric core having catalytic particles, a foil top surface, and a thin foil bottom surface with a foil backing of sufficient thickness to absorb heat from a laser drilling operation to prevent the penetration of the thin foil bottom surface during laser drilling. A sequence of steps including a laser drilling step, ...