| abstract |
A laminate obtained by a production method comprising the steps of: preparing a carrier substrate having a support body therein; and forming a first intermediate laminate of a peelable metal layer formed on at least one side of the carrier substrate; Forming a first hole from the surface of the first intermediate laminate that reaches at least the support in the carrier substrate from the surface of the first intermediate laminate, and forming the second hole with the first hole In the intermediate laminate, the insulating material and the metal foil are laminated in this order from the surface side on the surface of the second intermediate laminate on which the first hole has been formed, and the second intermediate laminate is The insulating material and the metal foil are heated in the lamination direction to form a third intermediate laminate in which the insulating material is filled in the first hole, and the third intermediate stack is formed using the chemical liquid. The layer is processed. |