3-D Self-Aligned Stacked Ge Nanowire pGAAFET on Si nFinFET of Single Gate CFET

In this study, we propose a self-aligned stacked Ge nanowire (NW) p-type gate-all-around field-effect transistor (pGAAFET) on Si nFinFET of single gate complementary FET (CFET). The self-aligned stacked Ge NW pGAAFET on Si nFinFET of single gate CFET device is fabricated on a SOI wafer. The CFET dev...

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Main Authors: Yi-Wen Lin, Shan-Wen Lin, Bo-An Chen, Chong-Jhe Sun, Siao-Cheng Yan, Guang-Li Luo, Yung-Chun Wu, Fu-Ju Hou
Format: Article
Language:English
Published: IEEE 2023-01-01
Series:IEEE Journal of the Electron Devices Society
Subjects:
Online Access:https://ieeexplore.ieee.org/document/10233696/
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author Yi-Wen Lin
Shan-Wen Lin
Bo-An Chen
Chong-Jhe Sun
Siao-Cheng Yan
Guang-Li Luo
Yung-Chun Wu
Fu-Ju Hou
author_facet Yi-Wen Lin
Shan-Wen Lin
Bo-An Chen
Chong-Jhe Sun
Siao-Cheng Yan
Guang-Li Luo
Yung-Chun Wu
Fu-Ju Hou
author_sort Yi-Wen Lin
collection DOAJ
description In this study, we propose a self-aligned stacked Ge nanowire (NW) p-type gate-all-around field-effect transistor (pGAAFET) on Si nFinFET of single gate complementary FET (CFET). The self-aligned stacked Ge NW pGAAFET on Si nFinFET of single gate CFET device is fabricated on a SOI wafer. The CFET device is fully compatible with current Si technology platform using alternating anisotropic and isotropic dry etching process. The Ge NW pGAAFET presents an on-state current (ION) of <inline-formula> <tex-math notation="LaTeX">$166 ~\mu \text{A}/\mu \text{m}$ </tex-math></inline-formula> at <inline-formula> <tex-math notation="LaTeX">${\mathrm{ V}}_{\mathrm{ D}}\,\,=$ </tex-math></inline-formula> VG-VTH <inline-formula> <tex-math notation="LaTeX">$=\,\,-0.5$ </tex-math></inline-formula> V and shows minimum subthreshold swing (SSmin) of 79, 91 mV/dec, and ION/IOFF of <inline-formula> <tex-math notation="LaTeX">$3.03\times10\,\,^{\mathrm{ 5}}$ </tex-math></inline-formula>, <inline-formula> <tex-math notation="LaTeX">$3.4\times 10^{4}$ </tex-math></inline-formula> at <inline-formula> <tex-math notation="LaTeX">${\mathrm{ V}}_{\mathrm{ D}}\,\,=\,\,-0.05$ </tex-math></inline-formula> V and &#x2212;0.5 V, respectively. The Si nFinFET presents an <inline-formula> <tex-math notation="LaTeX">${\mathrm{ I}}_{\mathrm{ ON}}$ </tex-math></inline-formula> of <inline-formula> <tex-math notation="LaTeX">$60.4 ~\mu \text{A}/\mu \text{m}$ </tex-math></inline-formula> at <inline-formula> <tex-math notation="LaTeX">${\mathrm{ V}}_{\mathrm{ D}}\,\,=$ </tex-math></inline-formula> VG-VTH &#x003D; 0.5 V and shows <inline-formula> <tex-math notation="LaTeX">${\mathrm{ SS}}_{\min }$ </tex-math></inline-formula> of 91, 101 mV/dec, and ION/IOFF of <inline-formula> <tex-math notation="LaTeX">$9.01\times10\,\,^{\mathrm{ 4}}$ </tex-math></inline-formula>, <inline-formula> <tex-math notation="LaTeX">$5.62\times 10^{5}$ </tex-math></inline-formula> at <inline-formula> <tex-math notation="LaTeX">${\mathrm{ V}}_{\mathrm{ D}}\,\,=$ </tex-math></inline-formula> 0.05 V and 0.5 V, respectively. The proposed CFET can simplify the process and shows promising potential for extending scaling beyond the technology node.
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spelling doaj.art-3577e1f2e6c947749d4160e51b7f07092024-01-11T00:01:38ZengIEEEIEEE Journal of the Electron Devices Society2168-67342023-01-011148048410.1109/JEDS.2023.3309812102336963-D Self-Aligned Stacked Ge Nanowire pGAAFET on Si nFinFET of Single Gate CFETYi-Wen Lin0https://orcid.org/0009-0002-5242-9362Shan-Wen Lin1Bo-An Chen2Chong-Jhe Sun3https://orcid.org/0000-0003-2856-7458Siao-Cheng Yan4https://orcid.org/0000-0002-1030-3481Guang-Li Luo5https://orcid.org/0000-0001-9429-4342Yung-Chun Wu6https://orcid.org/0000-0001-9409-6792Fu-Ju Hou7https://orcid.org/0000-0001-8288-2542Department of Engineering and System Science, National Tsing Hua University, Hsinchu, TaiwanDepartment of Engineering and System Science, National Tsing Hua University, Hsinchu, TaiwanDepartment of Engineering and System Science, National Tsing Hua University, Hsinchu, TaiwanDepartment of Engineering and System Science, National Tsing Hua University, Hsinchu, TaiwanDepartment of Engineering and System Science, National Tsing Hua University, Hsinchu, TaiwanTaiwan Semiconductor Research Institute, Hsinchu, TaiwanDepartment of Engineering and System Science, National Tsing Hua University, Hsinchu, TaiwanTaiwan Semiconductor Research Institute, Hsinchu, TaiwanIn this study, we propose a self-aligned stacked Ge nanowire (NW) p-type gate-all-around field-effect transistor (pGAAFET) on Si nFinFET of single gate complementary FET (CFET). The self-aligned stacked Ge NW pGAAFET on Si nFinFET of single gate CFET device is fabricated on a SOI wafer. The CFET device is fully compatible with current Si technology platform using alternating anisotropic and isotropic dry etching process. The Ge NW pGAAFET presents an on-state current (ION) of <inline-formula> <tex-math notation="LaTeX">$166 ~\mu \text{A}/\mu \text{m}$ </tex-math></inline-formula> at <inline-formula> <tex-math notation="LaTeX">${\mathrm{ V}}_{\mathrm{ D}}\,\,=$ </tex-math></inline-formula> VG-VTH <inline-formula> <tex-math notation="LaTeX">$=\,\,-0.5$ </tex-math></inline-formula> V and shows minimum subthreshold swing (SSmin) of 79, 91 mV/dec, and ION/IOFF of <inline-formula> <tex-math notation="LaTeX">$3.03\times10\,\,^{\mathrm{ 5}}$ </tex-math></inline-formula>, <inline-formula> <tex-math notation="LaTeX">$3.4\times 10^{4}$ </tex-math></inline-formula> at <inline-formula> <tex-math notation="LaTeX">${\mathrm{ V}}_{\mathrm{ D}}\,\,=\,\,-0.05$ </tex-math></inline-formula> V and &#x2212;0.5 V, respectively. The Si nFinFET presents an <inline-formula> <tex-math notation="LaTeX">${\mathrm{ I}}_{\mathrm{ ON}}$ </tex-math></inline-formula> of <inline-formula> <tex-math notation="LaTeX">$60.4 ~\mu \text{A}/\mu \text{m}$ </tex-math></inline-formula> at <inline-formula> <tex-math notation="LaTeX">${\mathrm{ V}}_{\mathrm{ D}}\,\,=$ </tex-math></inline-formula> VG-VTH &#x003D; 0.5 V and shows <inline-formula> <tex-math notation="LaTeX">${\mathrm{ SS}}_{\min }$ </tex-math></inline-formula> of 91, 101 mV/dec, and ION/IOFF of <inline-formula> <tex-math notation="LaTeX">$9.01\times10\,\,^{\mathrm{ 4}}$ </tex-math></inline-formula>, <inline-formula> <tex-math notation="LaTeX">$5.62\times 10^{5}$ </tex-math></inline-formula> at <inline-formula> <tex-math notation="LaTeX">${\mathrm{ V}}_{\mathrm{ D}}\,\,=$ </tex-math></inline-formula> 0.05 V and 0.5 V, respectively. The proposed CFET can simplify the process and shows promising potential for extending scaling beyond the technology node.https://ieeexplore.ieee.org/document/10233696/Self-alignedGe nanowire (NW)Si FinFETcomplementary FET (CFET)single gate
spellingShingle Yi-Wen Lin
Shan-Wen Lin
Bo-An Chen
Chong-Jhe Sun
Siao-Cheng Yan
Guang-Li Luo
Yung-Chun Wu
Fu-Ju Hou
3-D Self-Aligned Stacked Ge Nanowire pGAAFET on Si nFinFET of Single Gate CFET
IEEE Journal of the Electron Devices Society
Self-aligned
Ge nanowire (NW)
Si FinFET
complementary FET (CFET)
single gate
title 3-D Self-Aligned Stacked Ge Nanowire pGAAFET on Si nFinFET of Single Gate CFET
title_full 3-D Self-Aligned Stacked Ge Nanowire pGAAFET on Si nFinFET of Single Gate CFET
title_fullStr 3-D Self-Aligned Stacked Ge Nanowire pGAAFET on Si nFinFET of Single Gate CFET
title_full_unstemmed 3-D Self-Aligned Stacked Ge Nanowire pGAAFET on Si nFinFET of Single Gate CFET
title_short 3-D Self-Aligned Stacked Ge Nanowire pGAAFET on Si nFinFET of Single Gate CFET
title_sort 3 d self aligned stacked ge nanowire pgaafet on si nfinfet of single gate cfet
topic Self-aligned
Ge nanowire (NW)
Si FinFET
complementary FET (CFET)
single gate
url https://ieeexplore.ieee.org/document/10233696/
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