MANUFACTURING A LAMINATED PRINTED CIRCUIT BOARD

摘要

A process if provided for making a laminated board for use in printed circuitry. The process involves laminating a metal layer (4) to at least one side of a sheet of porous, expanded polytetrafluoroethylene (2) using an adhesive (3) followed by compressing the polytetrafluoroethylene sheet to increase its density. The metal layer may be a metal foil or it may comprise electrical circuitry.