Lateral RF SOI power MOSFETs with f/sub T/ of 6.9 GHz
- 1 October 2000
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Electron Device Letters
- Vol. 21 (10) , 500-502
- https://doi.org/10.1109/55.870614
Abstract
For the first time, lateral RF power MOSFETs have been fabricated in a silicon-on-insulator technology. Fabrication was performed on a 1.2-/spl mu/m SOI CMOS logic process using an additional p/sup -/ angle implant. The devices exhibit a breakdown voltage in excess of 35 V, a unity current gain frequency (f/sub T/) of 6.9 GHz, a maximum oscillation frequency (f/sub max/) of 10.1 GHz, a transconductance (g/sub m/) of 28 mS, and leakage currents of under 10 nA. A class A RF amplifier was also constructed and measured. It yielded an efficiency of 25% (identical to a similarly rated bulk LDMOSFET) with a maximum power output of 0.115 W. The excellent RF performance of these devices, combined with the inherent advantages of SOI CMOS for mixed-signal circuitry, is very promising for future integrated RF power amplifiers.Keywords
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