Integration technology of micro-led for next-generation display

D Chen, YC Chen, G Zeng, DW Zhang, HL Lu - Research, 2023 - spj.science.org
Inorganic micro light-emitting diodes (micro-LEDs) based on III-V compound semiconductors
have been widely studied for self-emissive displays. From chips to applications, integration …

Heterogeneous and monolithic 3D integration technology for mixed-signal ICs

J Jeong, DM Geum, SH Kim - Electronics, 2022 - mdpi.com
For next-generation system-on-chips (SoCs) in diverse applications (RF, sensor, display,
etc.) which require high-performance, small form factors, and low power consumption …

All MBE grown InAs/GaAs quantum dot lasers on on-axis Si (001)

J Kwoen, B Jang, J Lee, T Kageyama, K Watanabe… - Optics express, 2018 - opg.optica.org
Directly grown III-V quantum dot (QD) laser on on-axis Si (001) is a good candidate for
achieving monolithically integrated Si photonics light source. Nowadays, laser structures …

Understanding the sidewall passivation effects in AlGaInP/GaInP micro-LED

J Park, W Baek, DM Geum, S Kim - Nanoscale research letters, 2022 - Springer
The passivation effects of sulfur treatment and Al2O3 passivation for AlGaInP/GaInP red
micro-light-emitting-diodes (LEDs) were investigated in terms of the external quantum …

Strategy toward the fabrication of ultrahigh-resolution micro-LED displays by bonding-interface-engineered vertical stacking and surface passivation

DM Geum, SK Kim, CM Kang, SH Moon, J Kyhm… - Nanoscale, 2019 - pubs.rsc.org
In this study, we proposed a strategy to fabricate vertically stacked subpixel (VSS) micro-light-
emitting diodes (μ-LEDs) for future ultrahigh-resolution microdisplays. At first, to vertically …

Experimental demonstration of germanium-on-silicon slot waveguides at mid-infrared wavelength

J Lim, J Shim, DM Geum, S Kim - IEEE Photonics Journal, 2022 - ieeexplore.ieee.org
We first demonstrated a slot waveguide based on a Ge-on-Si (GOS) platform with a 3 μm
thickness of the Ge in the mid-infrared wavelength range at 4.2 μm. We numerically …

Stackable InGaAs-on-insulator HEMTs for monolithic 3-D integration

J Jeong, SK Kim, J Kim, DM Geum… - … on Electron Devices, 2021 - ieeexplore.ieee.org
In this article, we have demonstrated 125-nm-gate InGaAs-on-insulator (InGaAs-OI) high-
electron-mobility transistors (HEMTs) on Si substrates via wafer bonding. The highlights of …

Monolithic integration of visible GaAs and near-infrared InGaAs for multicolor photodetectors by using high-throughput epitaxial lift-off toward high-resolution imaging …

DM Geum, SH Kim, SK Kim, SS Kang, JH Kyhm… - Scientific Reports, 2019 - nature.com
In this study, multicolor photodetectors (PDs) fabricated by using bulk pin-based visible
GaAs and near-infrared InGaAs structures were monolithically integrated through a high …

Simulation Study on the Design of Sub- Non-Hysteretic Negative Capacitance FET Using Capacitance Matching

P Bidenko, S Lee, JH Han, JD Song… - IEEE Journal of the …, 2018 - ieeexplore.ieee.org
In this paper, approaches to obtain the sub-kT/q non-hysteretic operation mode in negative
capacitance (NC) field-effect-transistors for a wide band of applied gate voltages, using …

3D stackable synaptic transistor for 3D integrated artificial neural networks

SK Kim, YJ Jeong, P Bidenko, HR Lim… - … applied materials & …, 2020 - ACS Publications
Although they have attracted enormous attention in recent years, software-based and two-
dimensional hardware-based artificial neural networks (ANNs) may consume a great deal of …