An electrical structure and method of forming. The method comprises providing a substrate structure. A first layer comprising a first photosensitive material having a first polarity is formed over and in contact with the substrate structure. A second layer comprising photosensitive material having a second polarity is formed over and in contact with the first layer. The first polarity comprises an opposite polarity as the second polarity. Portions of the first and second layers are simultaneously exposed to a photo exposure light source. The portions of the first and second layers are developed such that structures are formed.