Abstract: A process for manufacturing a copper-clad laminate which includes a rolled copper foil as a circuit conductive material comprising, introducing a rolled copper foil through a power supply/guide roller into an electrolyte so as to pass between two parallel electrodes which are disposed in the electrolyte. An AC, DC or a combination thereof is supplied to the power supply/guide roller and the electrodes to form an etched layer on either one or both sides of the rolled copper foil. An adhesive is applied to the etched layer and the resultant rolled copper foil is pressed with a substrate made of a synthetic resin put together to form a laminate.