Abstract: Some embodiments relate to high density capacitor structures. Some embodiments include a semiconductor substrate having an conductive region with a plurality of trenches formed therein. A first dielectric layer is formed over respective bottom portions and respective sidewall portions of the respective trenches. A first conductive layer is formed in the trench and over the first dielectric layer, wherein the first dielectric layer acts as a first capacitor dielectric between the conductive region and the first conductive layer. A second dielectric layer is formed in the trench and over the first conductive layer. A second conductive layer is formed in the trench and over the second dielectric layer, wherein the second dielectric layer acts as a second capacitor dielectric between the first conductive layer and the second conductive layer. Other embodiments are also disclosed.

Abstract: Some embodiments relate to high density capacitor structures. Some embodiments include a semiconductor substrate having an conductive region with a plurality of trenches formed therein. A first dielectric layer is formed over respective bottom portions and respective sidewall portions of the respective trenches. A first conductive layer is formed in the trench and over the first dielectric layer, wherein the first dielectric layer acts as a first capacitor dielectric between the conductive region and the first conductive layer. A second dielectric layer is formed in the trench and over the first conductive layer. A second conductive layer is formed in the trench and over the second dielectric layer, wherein the second dielectric layer acts as a second capacitor dielectric between the first conductive layer and the second conductive layer. Other embodiments are also disclosed.

Abstract: The present disclosure involves a method. The method includes providing a substrate including a top surface. The method also includes forming a gate over the top surface of the substrate. The formed gate has a first height measured from the top surface of the substrate. The method also includes etching the gate to reduce the gate to a second height. This second height is substantially less than the first height. The present disclosure also involves a semiconductor device. The semiconductor device includes a substrate. The substrate includes a top surface. The semiconductor device also includes a first gate formed over the top surface of the substrate. The first gate has a first height. The semiconductor device also includes a second gate formed over the top surface of the substrate. The second gate has a second height. The first height is substantially less than the second height.