In this work, we fabricated n-In0.53Ga0.47As metal-oxide-semiconductor capacitors (MOSCAPs) with a metal-oxide-semiconductor (MOS) interface of Y2O3/In0.53Ga0.47As. We investigated interfacial properties of the gate stack through the H2 ambient annealing process in MOSCAPs. We obtained an extremely low interface trap density of Dit = 1.8 × 1011 cm−2 eV−1. We compared the H2 annealing effect in different gate electrode materials of Ni and Pt. We determined that the Pt electrode was effective in maximizing the impact of H2 annealing. Also, we fabricated In0.53Ga0.47As-on-insulator MOS field-effect-transistors using an optimized annealing process, which showed more stable electrical characteristics than devices through the N2 ambient annealing process.
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30 September 2019
Research Article|
September 30 2019
Improved characteristics of MOS interface between In0.53Ga0.47As and insulator by H2 annealing with Pt gate electrode
Seong Kwang Kim;
Seong Kwang Kim
1
School of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST)
, Daejeon 34141, South Korea
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Dae-Myeong Geum;
Dae-Myeong Geum
1
School of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST)
, Daejeon 34141, South Korea
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Hyeong-Rak Lim;
Hyeong-Rak Lim
2
Center for Opto-Electronic Materials and Devices, Korea Institute of Science and Technology (KIST)
, Seoul 02792, South Korea
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Hansung Kim;
Hansung Kim
3
Center for Spintronics, KIST
, Seoul 02792, South Korea
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Jae-Hoon Han;
Jae-Hoon Han
2
Center for Opto-Electronic Materials and Devices, Korea Institute of Science and Technology (KIST)
, Seoul 02792, South Korea
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Do Kyung Hwang
;
Do Kyung Hwang
2
Center for Opto-Electronic Materials and Devices, Korea Institute of Science and Technology (KIST)
, Seoul 02792, South Korea
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Jin Dong Song;
Jin Dong Song
2
Center for Opto-Electronic Materials and Devices, Korea Institute of Science and Technology (KIST)
, Seoul 02792, South Korea
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Hyung-jun Kim
;
Hyung-jun Kim
3
Center for Spintronics, KIST
, Seoul 02792, South Korea
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Sanghyeon Kim
Sanghyeon Kim
a)
1
School of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST)
, Daejeon 34141, South Korea
a)Author to whom correspondence should be addressed: [email protected]
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a)Author to whom correspondence should be addressed: [email protected]
Appl. Phys. Lett. 115, 143502 (2019)
Article history
Received:
May 25 2019
Accepted:
September 13 2019
Citation
Seong Kwang Kim, Dae-Myeong Geum, Hyeong-Rak Lim, Hansung Kim, Jae-Hoon Han, Do Kyung Hwang, Jin Dong Song, Hyung-jun Kim, Sanghyeon Kim; Improved characteristics of MOS interface between In0.53Ga0.47As and insulator by H2 annealing with Pt gate electrode. Appl. Phys. Lett. 30 September 2019; 115 (14): 143502. https://doi.org/10.1063/1.5111377
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