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Performance, Analys...
Performance, Analysis, and Modeling of III-V Vertical Nanowire MOSFETs on Si at Higher Voltages
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- Andric, Stefan (författare)
- Lund University,Lunds universitet,Nanoelektronik,Forskargrupper vid Lunds universitet,Nano Electronics,Lund University Research Groups,Acconeer AB
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- Kilpi, Olli-Pekka (författare)
- Lund University,Lunds universitet,VTT Technical Research Center of Finland, Espoo
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- Mamidala, Saketh, Ram (författare)
- Lund University,Lunds universitet,Nanoelektronik,Forskargrupper vid Lunds universitet,Nano Electronics,Lund University Research Groups
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visa fler...
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- Svensson, Johannes (författare)
- Lund University,Lunds universitet,Nanoelektronik,Forskargrupper vid Lunds universitet,Nano Electronics,Lund University Research Groups
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- Lind, Erik (författare)
- Lund University,Lunds universitet,NanoLund: Centre for Nanoscience,Annan verksamhet, LTH,Lunds Tekniska Högskola,Nanoelektronik,Forskargrupper vid Lunds universitet,Other operations, LTH,Faculty of Engineering, LTH,Nano Electronics,Lund University Research Groups
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- Wernersson, Lars-Erik (författare)
- Lund University,Lunds universitet,Nanoelektronik,Forskargrupper vid Lunds universitet,Nano Electronics,Lund University Research Groups
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(creator_code:org_t)
- 2022
- 2022
- Engelska 3060 s.
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Ingår i: IEEE Transactions on Electron Devices. - 0018-9383. ; 69:6, s. 3055-3055
- Relaterad länk:
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http://dx.doi.org/10...
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https://lup.lub.lu.s...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Heterostructure engineering in III-V vertical nanowire (VNW) MOSFETs enables tuning of transconductance and breakdown voltage. In this work, an InxGa 1−x As channel with a Ga-composition grading ( x= 1–0.4) in the channel and drain region, combined with field plate engineering, enables breakdown voltage above 2.5 V, while maintaining transconductance of about 1 mS/ μm , in VNW MOSFETs. The field plate consists of a vertically integrated SiO2 layer and a gate contact, which screens the electric field in the drain region, extending the device operating voltage. By scaling the field plate, a transconductance of 2 mS/ μm , alongside the breakdown voltage of 1.5 V, is obtained, demonstrating the benefit of field engineering in the drain. The scalability of the field plate and the gate is measured, showing an ON-resistance increase by 23 Ω⋅μm , and transconductance decrease by 5 μS/μm , per nm field plate length. This behavior is captured in a new and modified virtual source model, where device transmission and drain resistance are altered to capture the field plate scaling effect. The modeling is applied to nanowire (NW) devices with field plate lengths ranging from 5 to 115 nm, capturing accurately essential device performance parameters. Finally, a modified band-to-band (BTB) tunneling approach is used to accurately describe the device behavior above 1.5 V.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Nanoteknik -- Nanoteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Nano-technology -- Nano-technology (hsv//eng)
Nyckelord
- Nanowires
- MOSFETs
- Breakdown
- Field plate
- InGaAs
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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