Patent ID: 9578756
Date: 2017-02-21
CPC Classifications: H01L,H05K

Claim:
1. A printed wiring board, comprising: a plurality of resin insulation layers; a plurality of conductive layers formed on the resin insulation layers respectively such that each of the conductive layers is formed on a surface of each of the resin insulation layers; and a plurality of via conductors penetrating through the resin insulation layers respectively such that the plurality of via conductors is connecting the plurality of conductive layers through the resin insulation layers, wherein each of the resin insulation layers includes a modified resin layer formed by plasma treatment such that the modified resin layer is forming the surface of each of the resin insulation layers, each of the conductive layers includes a modified conductive layer formed by the plasma treatment such that the modified conductive layer is forming the surface of each of the conductive layers, the modified resin layer has a surface modification different from a surface modification of the modified conductive layer, the plurality of resin insulation layers has a main component comprising a resin selected from the group consisting of an epoxy resin, a phenolic resin, a polyimide resin, a polyphenylene resin, a polyolefin resin and a fluororesin, the modified resin layer of each of the resin insulation layers has C≡N, C—NH