METHOD FOR MANUFACTURING SUBSTRATE USING ENTRY BOARD FOR DRILL PROCESSING AND SUBSTRATE MANUFACTURED THEREBY

摘要

A substrate using an entry board for drill processing and a manufacturing method thereof are provided to reduce burrs and cutting scraps even in a micro high speed drilling process. A method for manufacturing a substrate using an entry board for drill processing includes the steps of: processing a hole on at least one substrate through the entry board for the drill processing by rolling a first layer(113) and a second layer(115); stacking the entry board at an upper part of the substrate of at least one layer, and stacking a back up board at a lower part of the substrate of at least one layer; and processing the hole on the entry board, the backup board, and at least one substrate by a drill bit. The first layer(113) contains aluminum. The second layer(115) contains copper which is stacked on a plane of the first layer(113).