SEALING METHOD FOR PLANAR ELEMENT

摘要

PURPOSE:Not to deteriorate an element due to a heat at adhering when a metallic foil is adhered to a substrate with thermoplastic resin to protect the element formed in a center of the substrate from an outside. CONSTITUTION:A metallic foil 3 in the peripheral part of a substrate where an element is not formed is instantly heated and simultaneously pressurized by using a high frequency induction heat by coils having a specific shape, and thermoplastic resin 12 is melted between the substrate in the peripheral part and the metallic foil 3 and is gradually cooled to stiffen resin, whereby the element is sealed from an outside without heat-deteriorating the element in a center of the substrate.