One or more techniques or systems for forming a contact structure for a deep trench capacitor (DTC) are provided herein. In some embodiments, a contact structure includes a substrate region, a first region, a second region, contact landings, a first trench region, a first landing region, and a second trench region. In some embodiments, a first region is over the substrate region and a second region is over the first region. For example, the first region and the second region are in the first trench region or the second trench region. Additionally, a contact landing over the first trench region, the second trench region, or the first landing region is in contact with the first region, the second region, or the substrate region. In this manner, additional contacts are provided and landing area is reduced, thus reducing resistance of the DTC, for example.