Patent ID: 6492687
Filing Date: 2002-12-10
Classification: H01L,H03F

Abstract:
A semiconductor device (20), comprising:a substrate (21) having a surface (18) for forming first, second and third well regions (25, 26, 24); and a control electrode (34) extending over the surface of the substrate to activate a first channel (42) in the first well region with a control signal (V14) to route a first current (IN) from a first node (13) of the semiconductor device to an edge (43) of the first well region, and a second channel (46) in the second well region to route the first current from an edge (45) of the second well region to a second node (15) of the semiconductor device, wherein the control signal inverts the third well region to form a third channel for routing a second current (IP) between the first and second well regions.