Demonstration of Symmetric Lateral NPN Transistors on SOI Featuring Epitaxially Grown Emitter/Collector Regions

Symmetric lateral NPN bipolar junction transistors on Si-on-insulator having epitaxially grown emitter/collector regions are demonstrated, for the first time. A novel notch-assisted epitaxy scheme has been developed using faceted Si epitaxial (epi) layers as reactive-ion-etch mask to expose the vert...

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Main Authors: Pouya Hashemi, Jeng-Bang Yau, Kevin K. Chan, Tak H. Ning, Ghavam G. Shahidi
Format: Article
Language:English
Published: IEEE 2018-01-01
Series:IEEE Journal of the Electron Devices Society
Subjects:
Online Access:https://ieeexplore.ieee.org/document/8183426/
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author Pouya Hashemi
Jeng-Bang Yau
Kevin K. Chan
Tak H. Ning
Ghavam G. Shahidi
author_facet Pouya Hashemi
Jeng-Bang Yau
Kevin K. Chan
Tak H. Ning
Ghavam G. Shahidi
author_sort Pouya Hashemi
collection DOAJ
description Symmetric lateral NPN bipolar junction transistors on Si-on-insulator having epitaxially grown emitter/collector regions are demonstrated, for the first time. A novel notch-assisted epitaxy scheme has been developed using faceted Si epitaxial (epi) layers as reactive-ion-etch mask to expose the vertical intrinsic-base epi-seeding surfaces and the epi emitter and collector are automatically connected to the extension regions for metal contact and/or for electrical probing. Functional transistors with good quality device I-V characteristics were obtained with post-epi rapid thermal annealing. The results suggest a path forward for devices suitable for low-cost THz electronics applications. Some learning about the fabrication, as revealed from measured device characteristics, are discussed.
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spelling doaj.art-08c33c8de9ce4899bdb83821fbea37e62022-12-21T20:30:25ZengIEEEIEEE Journal of the Electron Devices Society2168-67342018-01-01653754210.1109/JEDS.2017.27769028183426Demonstration of Symmetric Lateral NPN Transistors on SOI Featuring Epitaxially Grown Emitter/Collector RegionsPouya Hashemi0https://orcid.org/0000-0003-0208-2225Jeng-Bang Yau1Kevin K. Chan2Tak H. Ning3Ghavam G. Shahidi4Thomas J. Watson Research Center, IBM Research, Yorktown Heights, NY, USAThomas J. Watson Research Center, IBM Research, Yorktown Heights, NY, USAThomas J. Watson Research Center, IBM Research, Yorktown Heights, NY, USAThomas J. Watson Research Center, IBM Research, Yorktown Heights, NY, USAThomas J. Watson Research Center, IBM Research, Yorktown Heights, NY, USASymmetric lateral NPN bipolar junction transistors on Si-on-insulator having epitaxially grown emitter/collector regions are demonstrated, for the first time. A novel notch-assisted epitaxy scheme has been developed using faceted Si epitaxial (epi) layers as reactive-ion-etch mask to expose the vertical intrinsic-base epi-seeding surfaces and the epi emitter and collector are automatically connected to the extension regions for metal contact and/or for electrical probing. Functional transistors with good quality device I-V characteristics were obtained with post-epi rapid thermal annealing. The results suggest a path forward for devices suitable for low-cost THz electronics applications. Some learning about the fabrication, as revealed from measured device characteristics, are discussed.https://ieeexplore.ieee.org/document/8183426/SOI Lateral BJTepitaxially grown emitter
spellingShingle Pouya Hashemi
Jeng-Bang Yau
Kevin K. Chan
Tak H. Ning
Ghavam G. Shahidi
Demonstration of Symmetric Lateral NPN Transistors on SOI Featuring Epitaxially Grown Emitter/Collector Regions
IEEE Journal of the Electron Devices Society
SOI Lateral BJT
epitaxially grown emitter
title Demonstration of Symmetric Lateral NPN Transistors on SOI Featuring Epitaxially Grown Emitter/Collector Regions
title_full Demonstration of Symmetric Lateral NPN Transistors on SOI Featuring Epitaxially Grown Emitter/Collector Regions
title_fullStr Demonstration of Symmetric Lateral NPN Transistors on SOI Featuring Epitaxially Grown Emitter/Collector Regions
title_full_unstemmed Demonstration of Symmetric Lateral NPN Transistors on SOI Featuring Epitaxially Grown Emitter/Collector Regions
title_short Demonstration of Symmetric Lateral NPN Transistors on SOI Featuring Epitaxially Grown Emitter/Collector Regions
title_sort demonstration of symmetric lateral npn transistors on soi featuring epitaxially grown emitter collector regions
topic SOI Lateral BJT
epitaxially grown emitter
url https://ieeexplore.ieee.org/document/8183426/
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AT jengbangyau demonstrationofsymmetriclateralnpntransistorsonsoifeaturingepitaxiallygrownemittercollectorregions
AT kevinkchan demonstrationofsymmetriclateralnpntransistorsonsoifeaturingepitaxiallygrownemittercollectorregions
AT takhning demonstrationofsymmetriclateralnpntransistorsonsoifeaturingepitaxiallygrownemittercollectorregions
AT ghavamgshahidi demonstrationofsymmetriclateralnpntransistorsonsoifeaturingepitaxiallygrownemittercollectorregions