Patent ID: 9455162
Filing Date: 2016-09-27
CPC Classification: H01L

Claim Text:
1. A method for making an interposer comprising: forming a conductive layer contacting a replicate such that a shape of a surface of the conductive layer conforms to a shape of the contacted portion of the replicate, the conductive layer having a base and a plurality of conductive posts projecting away from the base, each conductive post having a post end opposite the base; attaching a support layer to the replicate to provide support to the replicate during at least one processing step; forming a dielectric layer covering the base and separating adjacent ones of the posts from each other; and removing a portion of the conductive layer to insulate at least one post from at least one other post, a remaining portion of the conductive layer forming at least one via; forming a second conductive layer contacting the replicate such that a shape of a surface of the second conductive layer conforms to a shape of the contacted portion of the replicate, the second conductive layer having a second base and a plurality of second conductive posts projecting away from the second base, each second conductive post having a second post end opposite the second base, the second conductive layer contacting the replicate on a side of the replicate opposite the conductive layer; removing the replicate from the support layer; forming a first conductive coating over at least a portion of the conductive posts of the conductive layer; and forming a second conductive coating onto the base of the conductive layer, wherein the first and second conductive coatings are electrically connected through the conductive layer.