A5101619061- Thin-Film Transistor Technologies
- ZnO doping and properties
- Organic Electronics and Photovoltaics
- Conducting polymers and applications
- 3D IC and TSV technologies
- Health and Wellbeing Research
- CCD and CMOS Imaging Sensors
- Additive Manufacturing and 3D Printing Technologies
- Nutrition, Health and Food Behavior
- Robotics and Sensor-Based Localization
- Smoking Behavior and Cessation
- Electronic Packaging and Soldering Technologies
- Advanced Image and Video Retrieval Techniques
- Semiconductor materials and devices
- Advanced Vision and Imaging
- Healthcare Education and Workforce Issues
- Advanced Sensor and Energy Harvesting Materials
- Educational Systems and Policies
- Nutrition and Health in Aging
- Augmented Reality Applications
- Perovskite Materials and Applications
- IPv6, Mobility, Handover, Networks, Security
- Image Processing Techniques and Applications
- COVID-19 impact on air quality
- Nanomaterials and Printing Technologies
Inje University Haeundae Paik Hospital
2018-2025
Samsung (South Korea)
2013-2024
Kyung Hee University
2020-2024
Sungkyunkwan University
2014-2022
NC bit (South Korea)
2022
Jeonbuk National University
2020
Pohang University of Science and Technology
2015-2018
Yeungnam University
2018
Samsung Medical Center
2013-2015
Korea Advanced Institute of Science and Technology
2010-2015
<h3>Importance</h3> Mammography screening currently relies on subjective human interpretation. Artificial intelligence (AI) advances could be used to increase mammography accuracy by reducing missed cancers and false positives. <h3>Objective</h3> To evaluate whether AI can overcome interpretation limitations with a rigorous, unbiased evaluation of machine learning algorithms. <h3>Design, Setting, Participants</h3> In this diagnostic study conducted between September 2016 November 2017, an...
Highly flexible organic nanofiber phototransistors are fabricated on a highly poly(ethylene terephthalate) (PET) textile/poly(dimethylsiloxane) (PDMS) composite substrate. Organic nanofibers obtained by electrospinning, using mixture of poly(3,3 ″′ ‐didodecylquarterthiophene) (PQT‐12) and oxide) (PEO) as the semiconducting polymer processing aid, respectively. PDMS is used both buffer layer for flattening PET textile dielectric in bottom‐gate bottom‐contact device configuration. PQT‐12:PEO...
Although hemorrhoids are one of the most common anal diseases among Koreans, risk factors for have not been well identified.We analyzed data from 4th Korean National Health and Nutrition Examination Survey (KNHANES) between 2007 2009. Study subjects were 17,228 participants KNHANES who aged 19 years or older. Logistic regression analysis was conducted to evaluate associations probable factors.Overall prevalence study 14.4%, being more prevalent women (15.7%) than men (13.0%). Obesity...
Biosensors based on a field‐effect transistor platform allow continuous monitoring of biologically active species with high sensitivity due to the amplification capability detected signals. To date, large number sensors for biogenic substances have used high‐cost enzyme immobilization methods. Here, highly sensitive organic (OFET)‐based functionalized synthetic receptors are reported that can selectively detect acetylcholine (ACh + ), critical ion related delivery neural stimulation. A...
We report eco- and human-friendly fabrication of organic field-effect transistors (OFETs) polymer solar cells (PSCs) using only ethanol as a processing solvent at ambient condition, in stark contrast to that involving the use halogenated and/or aromatic solvents. New ethanol-processable electroactive materials, p-type (PPDT2FBT-A) n-type bis-adduct fullerene acceptor (Bis-C60-A) are designed rationally by incorporation oligoethylene glycol (OEG) side-chains. By processing, PPDT2FBT-A shows...
Interest in healthy aging has grown with the increase older population. Nutritional intake is crucial frailty. Therefore, we aimed to investigate relationship between frailty and multivitamin mineral supplements (MVMS), which can easily provide micronutrients. The Korea National Health Nutrition Examination Survey (KNHANES) conducted from 2018 2019 included 3,395 adults aged ≥65 years. Of these, 1,511 who did not consume dietary (DS, non-DS group) 415 took MVMS (MVMS were study. We modified...
Advanced packaging continues to attract a lot of attention as the demands for higher performance, bandwidth, and lower power consumption increase. To satisfy aforementioned demands, researchers have tuned 3D IC technology such X-Cube using micro-bumps announced by Samsung in 2020. As much I/O bandwidth with smaller form factor is required, hybrid Cu bonding (HCB) considered one most promising technologies next-generation 3D-based chip products. Unlike conventional solder based bonding, HCB...
A systematic study on the microstructure-property relationship in thienoisoindigo (TIIG)-based polymers provides guidance for synthesis of high-performance by tuning polarity charge carrier organic field-effect transistors (OFETs).
Vertical-channel thin-film transistors (VTFTs), featured to uniquely employ the In–Ga–Sn–O (IGTO)-active channel layers prepared by atomic layer deposition, were fabricated with a length (Lch) as short 150 nm and characterized in terms of short-channel effect (SCE) operational reliability. All devices exhibited sound stable operations, including durability against SCEs, such negligible DIBL effects, even for nanoscale regime Lch. The IGTO VTFT cationic composition (In/Ga/Sn) 3.8:3.9:1.0 was...
We conducted this cross-sectional study to elucidate factors that predict persistent smoking of the Korean cancer survivors. The subjects were 130 adult (≥19 yr old) survivors who smokers at diagnosis and have participated in National Health Nutrition Examination Surveys from 2007 2011. categorized them into quitters, according change status between time survey. Factors associated with evaluated using multiple logistic regression analysis. During 7.52 (standard deviation = 0.34) after...
Background and Purpose Gait impairment in patients with cognitive decline has received considerable attention over the past several decades.However, gait disturbance dementia is often underdiagnosed.The Mini Mental State Examination (MMSE) most widely used screening test for dementia, Montreal Cognitive Assessment (MoCA) been developed more accurate assessments of mild (MCI).The purpose this study was to determine correlation between status scores on these tests dementia. MethodsWe recruited...
A unified vision and graphics processor with three layers is shown to provide a fast pipeline for augmented reality. In the image-level layer, 153.6 GOPS massively parallel processing unit eight SIMD processors, each containing 128 elements, performs highly data-parallel operations. sub-image rasterizer pixel arranger respectively generate reduce data-level parallelism. descriptor-level pose estimation engine executes sequential programs. Our can images reality at 100 fps, power consumption...
Although cigarette smoking is a major modifiable risk factor for the occurrence of primary and secondary cardiovascular disease (CVD), not all survivors from CVD attacks can successfully stop smoking. However, little known about factors associated with change in behavior after attack.Study subjects included 16,807 participants (≥19 years) fourth Korean National Health Nutrition Examination Surveys. From them, we selected 180 persons who had previous diagnosis (angina pectoris, myocardial...
Technology scaling and many-core design trends demand detailed information regarding the spatial temperature distribution, which is essential for dynamic thermal management [1,2]. The number of on-chip sensors in high-performance processors increasing, with state-of-the-art commercial embedding up to 44 [3] likely increase future (Fig. 14.7.1(a)). We observe two significant challenges sensing: 1) increasing sensors, 2) placing them a regular manner (not solely on potential hotspots). mostly...
Cancer survivors experience decreased physical function and reduced muscle strength, which leads to lower quality of life (QOL). The hand grip strength (HGS) can be a predictor poor health-related QOL as parameter sarcopenia. purpose this study was investigate the relationship between low HGS in cancer healthy controls.We analyzed 392 1,176 controls from Korea National Health Nutrition Examination Survey, 2014-2017. We defined 2 standard deviation values for young Korean adults previous...
There has been lots of requirement to increase the I/O bandwidth and thermal characteristic in flip chip base package. Next-generation 3D SiP products need a gapless hybrid Cu bonding (HCB) process overcome extremely small pitch distribute heats from bottom die. Unlike conventional solder bonding, there are various void sources HCB process, such as particles surface topology, where interface between wafer top is contact without medium. In addition, voids have critical risk Si popping...
In–Ga–Sn–O (IGTO) thin-film transistors (TFTs) were fabricated with channel lengths from <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$3 \mu \text{m}$ </tex-math></inline-formula> to 500 nm investigate the short-channel effects (SCEs), in which IGTO compositions modulated during atomic-layer deposition. The SCEs appearing TFTs found be manifested by increasing In/Ga ratio of channel, showing typical...
Ambipolar organic phototransistors were fabricated using a natural pigment 6,6'-dibromoindigo (6-BrIG) as the active channel. These yielded significantly enhanced currents upon light illumination with photoresponsivities and external quantum efficiencies high 10.3 A W-1 2437% for n-channel, 55.4 mA 13.1% p-channel, respectively. In addition, simple inverter complementary circuits by integrating two ambipolar phototransistors. Channel current was dependent on intensity voltage bias. This...
Hybrid bonding technology is required for high density I/O in the 3D package structure to overcome limitations of thermos compression bonding. Compared bump with micro solder, hybrid can achieve fine pitch and have excellent SI/PI characteristics. One key technologies pad processing which optimized environment. We should consider Cu expansion at anneal temperature area between pads because proportional volume. [1]However, annealing determined depending on thermal properties device. Hence, it...
In this paper, a unified interest-point detection and matching hardware with an optimized memory architecture is proposed for real-time stereo-matching system. order to support algorithm, the datapath in performs not only algorithms such as features from accelerated segment test (FAST) binary robust independent elementary feature (BRIEF) real time but also census transform, which widely used stereo matching. To achieve maximum performance, we propose two special architectures: 1)...
Background and objectives: This study aimed to investigate the change in bond strength between resin cement tetragonal zirconia polycrystalline stabilized with 3 8 mol% yttrium oxide (Y-TZP) observe topographical of Y-TZP surface when etched hydrofluoric acid (HF) solution under different concentration temperature conditions. Materials Methods: Non-etched sintered specimens two conditions (room 70–80 °C, respectively), were used as a control, while experimental groups 5%, 10%, 20%, 40% HF...
A new doping technique to form the conductive source/drain regions of self-aligned coplanar In-GaZn-O (IGZO) thin-film transistors (TFTs) was demonstrated. The electrical resistivity IGZO film reduced 3.8×10 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">-4</sup> Ω·cm after simply coating organic inter-layer dielectric thin film. carrier mobility at saturation region and subthreshold swing fabricated TFTs were 18.4 cm...