Semiconductor device and method of making

摘要

A semiconductor device (10) is formed that is bi-lateral and has a voltage blocking capability that is well suited to applications involving portable electronics. The semiconductor device has an epitaxial layer (14) that is formed on a semiconductor substrate (11). A doped region (24) is formed that extends from a top surface (16) of the epitaxial layer (14) to the underlying semiconductor substrate (11). The semiconductor device (10) has a source region (31) that is separated from the doped region (24) to provide a channel region (29). The channel region (29) is modulated by a gate structure (20) to determine if a current flow should be allowed through semiconductor device (10) or if semiconductor device (10) is to provide voltage blocking capability.