GLASS CLOTH, RESIN IMPREGNATED SUBSTRATE AND WIRING BOARD

摘要

PURPOSE:To improve the heat resistance of a wiring board by providing a glass cloth capable of impregnating a resin without any voids. CONSTITUTION:The objective glass cloth is characterized by impregnating the whole surface thereof with plural coupling agents and drying the impregnated glass cloth. Furthermore, the objective resin-impregnated substrate is characterized by impregnating the glass cloth with the resin and, as necessary, drying the impregnated glass cloth. The objective wiring board is characterized by arranging a metallic foil on the top or the under surface of a required number of the resin-impregnated substrates and integrating the metallic foil therewith.