Patent ID: 6984860
Filing Date: 2006-01-10
Classification: H01L

Abstract:
1. A semiconductor device, comprising: a semiconductor substrate having a substrate surface formed with a plurality of adjacent trenches; a capacitor formed in the plurality of adjacent trenches, the capacitor including a continuous first conductive layer formed over the substrate surface and lining sidewalls of the plurality of adjacent trenches to provide a first plate, a dielectric film formed over the first plate of the capacitor, and a second conductive material formed over the dielectric, wherein the second conductive material fills the plurality of adjacent trenches, and wherein the second conductive material in the plurality of adjacent trenches is directly coupled together to form a second plate of the capacitor; and a trench substrate contact, wherein the continuous first conductive layer lines sidewalls of the trench substrate contact, and wherein the trench substrate contact is formed absent the second conductive material.