Method of Producing Laminated Body, and Laminated Body
AssigneeJX Nippon Mining & Metals Corporation
InventorMasayuki Takamori
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AssigneeJX Nippon Mining & Metals Corporation
InventorMasayuki Takamori
Estimating the term…
A method of producing a laminated body is provided in which, while a carrier A is wound off from a bobbin, an adhesive is applied to both facing ends thereof and a metal foil B is laid on and bonded to a side to which the adhesive was applied. The obtained laminated body is subsequently cut, a plurality of the cut laminated bodies are aligned in a stack, a roller is applied from the top of the stack when the elevation of the center of the stack becomes high to vent air existing between and within the laminated bodies. After the air vent process, the adhesive hardens to mutually bond the carrier to the metal foil of each laminated body. Accordingly, a carrier-attached copper foil that provides improvements in handling ability in the production process of a printed board and cost reduction based on improved production yield.
A carrier-attached metal foil in which carrier A and a metal foil B are laminated, wherein proof stress or yield stress of the carrier A is 20 to 500 N/mm2, an adhesive is applied to a portion other than an area to be used as a printed circuit board of the metal foil B and the carrier A and metal foil B are bonded at ends of two facing sides with the adhesive having an adhesive strength of 5 g/cm to 500 g/cm.
Dependencies are inferred from the claim text.