Patent ID: 8196298
Filing Date: 2012-06-12
Classification: H01L,H05K,Y10T

Abstract:
1. A method for manufacturing an electroconductive material-filled throughhole substrate of which the front side and back side have been electrically conducted to each other through an electroconductive material filled into the throughholes, characterized by comprising the steps of: forming mask patterns on a core substrate through photomask for throughhole formation; dry-etching the core substrate by using the mask pattern to form a plurality of pores and then: forming throughholes by polishing the backside of the core substrate to expose the plurality of pores; forming an electroconductive base layer on one side of the core substrate having throughholes; and filling the throughholes with an electroconductive material by electroplating using the electroconductive base layer as a seed layer, such that the front side and back side of the throughholes have been electrically conducted to each other through an electroconductive material filled into the throughholes.