Patent ID: 9312219
Filing Date: 2016-04-12
CPC Classification: H01L,H05K

Claim Text:
1. An interposer, comprising: a composite body comprising: a first main layer of a material selected from the group consisting of glass, silicon and ceramic, a second main layer of a material selected from the group consisting of glass, silicon and ceramic, and an adhesive layer disposed between the first main layer and the second main layer, wherein the adhesive layer is in direct surface contact with the first and second main layers and combines the first main layer to the second main layer; and a plurality of conductive through vias passing through the composite body, wherein a thickness of the adhesive layer is smaller than a thickness of each of the first and second main layers: the composite body has a first outermost layer that is a first dielectric layer, the first dielectric layer is disposed on the first main layer, and each of the conductive through vias has a straight sidewall that extends continuously, without interruption, through the first dielectric layer, the first main layer, the adhesive layer, and the second main layer; wherein a conductive material of each of the conductive through vias extends continuously, without interruption, through the first dielectric layer, the first main layer, the adhesive layer, and the second main layer; and wherein the first dielectric layer is in direct surface contact with the first main layer, is more flexible than the first and second main layers, and has a thickness greater than the thickness of the adhesive layer.