Patent ID: 9530857
Filing Date: 2016-12-27
CPC Classification: H01L

Claim Text:
1. An electronic device comprising a semiconductor substrate having a first side and a second side; a vertical trench capacitor on the first side of the substrate, the vertical trench capacitor including a plurality of trenches in which dielectric material is present between first and second conductive surfaces; a vertical interconnect that extends through the substrate from the first side to the second side, the vertical interconnect being insulated from the substrate by dielectric material, the dielectric material of the vertical interconnect and the dielectric material of the vertical trench capacitor being a common material formed from a single deposition layer; wherein the substrate comprises a high-ohmic zone which is present adjacent to the vertical capacitors and acts as a protection against parasitic currents; and a planar capacitor on the first side of the substrate, the planar capacitor including dielectric material formed from the common material of the single deposition layer, and wherein the high-ohmic zone separates the planar capacitor from the vertical trench capacitor.