Patent ID: 9064841
Filing Date: 2015-06-23
Classification: H01L

Abstract:
1. An apparatus comprising: a metal-oxide-metal capacitor comprising a low k dielectric insulation layer and a via plug formed in the low k dielectric insulation layer, wherein the metal-oxide-metal capacitor is over a semiconductor substrate; and a via-hole region enclosing the metal-oxide-metal capacitor, wherein the via-hole region comprises a plurality of via holes, and wherein the via-hole region comprises upper via holes formed in an upper metal-oxide-metal layer of the metal-oxide-metal capacitor and in direct contact with a first side of the low k dielectric insulation layer and bottom via holes formed in a lower metal-oxide-metal layer of the metal-oxide-metal capacitor and in direct contact with a second side of the low k dielectric insulation layer.