Abstract
A new partial-silicon-on-insulator (PSOI) power MOSFET structure is proposed, in which the drift region in the step buried oxide PSOI structure (SB-PSOI) is replaced by a triple drift region with three different doping concentrations. We call this structure Triple Drift Partial Silicon on Insulator (TDSB-PSOI). 2-D numerical simulations are performed and its results show that these three different parts in the drift region create two additional peaks in the electric field distribution along the drift region. This phenomenon causes an enhancement of about 100% in the breakdown voltage (BV) of TDSB-PSOI towards its SB-PSOI counterpart. The self-heating effect (SHE) is also improved in the proposed structure. Furthermore, our simulation results show that the output characteristic of the TDSB -PSOI exhibits a significantly higher drain current in comparison with the SB-PSOI structure. The drain current of the TDSB-PSOI and SB-PSOI structures are 112µA and 95µA, respectively at V GS = 25V and V DS = 70V.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.