Patent ID: 8674513
Filing Date: 2014-03-18
Classification: H01L

Abstract:
1. A device comprising: a substrate having a first side and a second side; a through-substrate via extending through the substrate from the first side to the second side; a plurality of dielectric layers over at least one of the first side and the second side; and a plurality of metallization layers formed in the plurality of dielectric layers and comprising a first metallization layer being in contact with the through-substrate via, the first metallization layer having a thickness larger than one or more overlying metallization layers, and the first metallization layer thickness being greater than a pop-up height of at least one through-substrate via, wherein each one of the plurality of metallization layers has a different thickness than adjacent ones of the plurality of metallization layers; wherein the plurality of metallization layers comprises a top metallization layer with an overlying passivation layer, the top metallization layer being larger than one or more underlying metallization layers.