A semiconductor having an .about.5V operational range, including a drain
side enhanced gate-overlapped LDD (GOLD) and a source side halo implant
region and well implant. A method in accordance with an embodiment of the
invention comprises forming a gate electrode overlying a substrate and a
very lightly doped epitaxial layer formed on the substrate. A high energy
implant region forms a well in a source side of the lightly doped
epitaxial layer. A self-aligned halo implant region is formed on a source
side of the device and within the high energy well implant. An implant
region on a drain side of the lightly doped epitaxial layer forms the
gate overlapped LDD (GOLD). A doped region within the halo implant region
forms a source. A doped region within the gate overlapped LDD (GOLD)
forms a drain. The structure enables the manufacture of a deep submicron
(<0.3 .mu.m) power MOSFET using existing 0.13 .mu.m process flow
without additional masks and processing steps.