A semiconductor device (102) that includes a drain extended PMOS
transistor (CT1a) is provided, as well as fabrication methods (202)
therefore. In forming the PMOS transistor, a drain (124) of the
transistor is formed over a region (125) of a p-type upper epitaxial
layer (106), where the region (125) of the p-type upper epitaxial layer
(106) is sandwiched between a left P-WELL region (130a) and a right
P-WELL region (130b) formed within the p-type upper epitaxial layer
(106). The p-type upper epitaxial layer (106) is formed over a
semiconductor body (104) that has an n-buried layer (108) formed therein.
This arrangement serves to increase the breakdown voltage (BVdss) of the
drain extended PMOS transistor.