LAMINATED MATERIAL FOR ELECTRIC INSULATION, AND PRINTED WIRING BOARD USING LAMINATED MATERIAL

摘要

PROBLEM TO BE SOLVED: To provide a laminated material for electric insulation with optional specific inductive capacity by combining insulating materials with different specific inductive capacities and by a specific combining method and a printed wiring board using the laminated material. SOLUTION: The laminated material comprising conductor layers on upper side and lower side of the insulating layer is characterized by that the insulating layer is constituted of two or more of insulating layer with different specific inductive capacities and the insulating layer contacting the conductor layers and the insulating layer not contacting the conductor layers are different in the specific inductive capacity. COPYRIGHT: (C)2008,JPO&INPIT