MANUFACTURING METHOD OF SUBSTRATE

摘要

A method for manufacturing a substrate is provided to facilitate the extraction of a circuit laminate by using a supporter including an oxide metal layer. A supporter includes a base material and a first metal layer. The base material is made of the metal. A first metal layer is formed in one side of the base material(S210). The whole or a part of the first metal layer is oxidized. A first metal oxide layer is formed(S220). A second metal layer is formed in one side of the first oxide metal layer(S230). A circuit laminate is formed in one side of the second metal layer(S240). The first oxide metal layer and the second metal layer are separated. The circuit laminate is separated from the supporter(S250). The second metal layer is selectively etched to the predetermined shape(S260). The solder resist layer is formed in one side of the circuit laminate(S270).