Impact of channel width on back biasing effect in tri-gate MOSFET
The electrical properties showed back bias effect in narrow device and wide device. Back biasing effect is suppressed in narrow device with strong front gate control. Lower mobility in narrow device is due to the poorer quality of front interface. Back biasing effect was modeled with 2-D numerical simulation. The potential profile showed weak impact of back biasing in narrow device.
back bias tri-gate mosfet soi (silicon on insulator) electrostatic coupling channel width variation