Patent ID: 9202861
Filing Date: 2015-12-01
Classification: H01L

Abstract:
1. A capacitor, comprising: a substrate; a conductive layer, comprising a first electrode and a second electrode and located on the substrate; a middle dielectric material layer, located between the first electrode and the second electrode; a first dielectric material layer, located between the middle dielectric material layer and the first electrode; a second dielectric material layer, located between the middle dielectric material layer and the second electrode; a first capping layer, located below the first electrode, the first dielectric material layer, the middle dielectric material layer, the second dielectric material layer, and the second electrode; a second capping layer, located above the first electrode, the first dielectric material layer, the second dielectric material layer, and the second electrode; a third dielectric material layer, located below the first electrode, the first dielectric material layer, the second dielectric material layer, and the second electrode and above the first capping layer, and connected to the first dielectric material layer and the second dielectric material layer; wherein a dielectric constant of the middle dielectric material layer is different from dielectric constants of the first dielectric material layer and the second dielectric material layer and a distance between the first electrode and the second electrode is equal to a width of an opening of the second capping layer comprising a total thickness of the first dielectric material layer, the second dielectric material layer and the middle dielectric material layer.