Methods of fabricating memory devices having non-volatile and volatile
memory are provided. A substrate is provided, wherein the substrate has a
non-volatile memory region and a volatile memory region. The non-volatile
memory region has a storage device, such as a split-gate transistor, that
is fabricated in substantially the same process steps as a storage
capacitor of the volatile memory region. The reduction of process steps
allow mixed memory to be fabricated in a cost effective manner.