Various embodiments comprise apparatuses and methods including a memory array having alternating levels of semiconductor materials and dielectric material with strings of memory cells formed on the alternating levels. One such apparatus includes a memory array formed starting adjacent to a surface of a substrate. Peripheral circuitry is formed on an elevated portion that is adjacent to the memory array and has an uppermost portion substantially coplanar with an uppermost surface of the memory array. Additional apparatuses and methods are described.