LDMOS Drift Region With Field Oxides: Figure-of-Merit Derivation and Verification

We analytically and numerically investigate the performance of Laterally-Diffused Metal-Oxide-Semiconductor (LDMOS) transistors with Semi-circular Field OXide (S-FOX) focusing on mid-voltage (30 V – 100 V) power applications. We derive an analytical relation between breakdown voltage and...

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Main Authors: Ali Saadat, Maarten L. Van de Put, Hal Edwards, William G. Vandenberghe
Format: Article
Language:English
Published: IEEE 2022-01-01
Series:IEEE Journal of the Electron Devices Society
Subjects:
Online Access:https://ieeexplore.ieee.org/document/9761987/
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author Ali Saadat
Maarten L. Van de Put
Hal Edwards
William G. Vandenberghe
author_facet Ali Saadat
Maarten L. Van de Put
Hal Edwards
William G. Vandenberghe
author_sort Ali Saadat
collection DOAJ
description We analytically and numerically investigate the performance of Laterally-Diffused Metal-Oxide-Semiconductor (LDMOS) transistors with Semi-circular Field OXide (S-FOX) focusing on mid-voltage (30 V – 100 V) power applications. We derive an analytical relation between breakdown voltage and on-resistance to realize the ideal behavior of the drift region for an LDMOS with S-FOX. Then, we find the optimized drift doping concentration minimizing the on-resistance at a given breakdown voltage. We introduce a new figure-of-merit for the drift region of a lateral device with S-FOX. We finally verify our ideal analytical findings with numerical results modeled and simulated in a commercial Technology Computer-Aided Design (TCAD).
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spelling doaj.art-4ac0540a27404e2a8e89fe80aa1653aa2022-12-21T22:51:09ZengIEEEIEEE Journal of the Electron Devices Society2168-67342022-01-011036136610.1109/JEDS.2022.31697029761987LDMOS Drift Region With Field Oxides: Figure-of-Merit Derivation and VerificationAli Saadat0https://orcid.org/0000-0001-8628-0098Maarten L. Van de Put1https://orcid.org/0000-0001-9179-6443Hal Edwards2https://orcid.org/0000-0002-1101-661XWilliam G. Vandenberghe3https://orcid.org/0000-0002-6717-5046Department of Materials Science and Engineering, The University of Texas at Dallas, Richardson, TX, USADepartment of Materials Science and Engineering, The University of Texas at Dallas, Richardson, TX, USAAnalog Technology Development, Texas Instruments Inc., Richardson, TX, USADepartment of Materials Science and Engineering, The University of Texas at Dallas, Richardson, TX, USAWe analytically and numerically investigate the performance of Laterally-Diffused Metal-Oxide-Semiconductor (LDMOS) transistors with Semi-circular Field OXide (S-FOX) focusing on mid-voltage (30 V – 100 V) power applications. We derive an analytical relation between breakdown voltage and on-resistance to realize the ideal behavior of the drift region for an LDMOS with S-FOX. Then, we find the optimized drift doping concentration minimizing the on-resistance at a given breakdown voltage. We introduce a new figure-of-merit for the drift region of a lateral device with S-FOX. We finally verify our ideal analytical findings with numerical results modeled and simulated in a commercial Technology Computer-Aided Design (TCAD).https://ieeexplore.ieee.org/document/9761987/Analytical studybreakdown voltagedrift regionfigure-of-meritLDMOSon-resistance
spellingShingle Ali Saadat
Maarten L. Van de Put
Hal Edwards
William G. Vandenberghe
LDMOS Drift Region With Field Oxides: Figure-of-Merit Derivation and Verification
IEEE Journal of the Electron Devices Society
Analytical study
breakdown voltage
drift region
figure-of-merit
LDMOS
on-resistance
title LDMOS Drift Region With Field Oxides: Figure-of-Merit Derivation and Verification
title_full LDMOS Drift Region With Field Oxides: Figure-of-Merit Derivation and Verification
title_fullStr LDMOS Drift Region With Field Oxides: Figure-of-Merit Derivation and Verification
title_full_unstemmed LDMOS Drift Region With Field Oxides: Figure-of-Merit Derivation and Verification
title_short LDMOS Drift Region With Field Oxides: Figure-of-Merit Derivation and Verification
title_sort ldmos drift region with field oxides figure of merit derivation and verification
topic Analytical study
breakdown voltage
drift region
figure-of-merit
LDMOS
on-resistance
url https://ieeexplore.ieee.org/document/9761987/
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AT maartenlvandeput ldmosdriftregionwithfieldoxidesfigureofmeritderivationandverification
AT haledwards ldmosdriftregionwithfieldoxidesfigureofmeritderivationandverification
AT williamgvandenberghe ldmosdriftregionwithfieldoxidesfigureofmeritderivationandverification