COPPER-PLATED LAMINATED BOARD

摘要

PROBLEM TO BE SOLVED: To offer a copper-plated laminated board which facilitates piercing with a laser beam to make a hole very easy and is suitable for forming an interlayer junction hole of a small diameter, by improving the surface of a copper foil which is to be the incident plane of a laser beam at the manufacture of a printed circuit board. SOLUTION: A copper-plated laminating board uses an electrolytic copper foil which is subjected to piercing with a laser beam, and the rough surface of the electrolytic copper foil is used as an incident plane of the laser beam.