A5100334311- Advanced DC-DC Converters
- Multilevel Inverters and Converters
- Induction Heating and Inverter Technology
- Semiconductor materials and devices
- IPv6, Mobility, Handover, Networks, Security
- Advancements in Semiconductor Devices and Circuit Design
- Silicon and Solar Cell Technologies
- Electric Motor Design and Analysis
- Thin-Film Transistor Technologies
- Mobile Agent-Based Network Management
- Advancements in PLL and VCO Technologies
- Conducting polymers and applications
- Perovskite Materials and Applications
- Silicon Carbide Semiconductor Technologies
- Organic Electronics and Photovoltaics
- Radio Frequency Integrated Circuit Design
- Analog and Mixed-Signal Circuit Design
- 3D IC and TSV technologies
- Limits and Structures in Graph Theory
- Internet of Things and Social Network Interactions
- Low-power high-performance VLSI design
- Silicon Nanostructures and Photoluminescence
- Wireless Networks and Protocols
- Advanced Wireless Network Optimization
- Engineering Applied Research
Korea Advanced Institute of Science and Technology
2015-2024
National Institute for Mathematical Sciences
2023-2024
Samsung (South Korea)
2004-2024
Sejong University
2010-2024
Korea Institute of Science & Technology Information
2024
Institute for Basic Science
2023
Hanyang University
2022
Yonsei University
2012-2020
Electronics and Telecommunications Research Institute
2006-2019
Kwangwoon University
2014-2019
Human breast cancers include cancer stem cell populations as well nontumorigenic cells. Breast cells have self-renewal capability and are resistant to conventional chemotherapy. miRNAs regulate the expression of many target genes; therefore, dysregulation has been associated with pathogenesis human diseases, including cancer. However, a role for miRNA in stemness drug resistance yet be identified. Members miR34 family reportedly tumor-suppressor various cancers. Our results confirm that...
A compact (100 mm × 100 40 mm) dual-polarized antenna with wide impedance bandwidth and high isolation is proposed for an indoor MIMO wireless communication system. The consists of cavity-backed bowtie antennas parasitic elements. It can cover the DCS/PCS/UMTS/LTE 1, 2, 3, 4, 7, 9, 10, 15, 16, 23, 25 bands (1710-2690 MHz). (VSWR <; 2), about 44.5%, achieved by using elements optimal location length cavity electrical wall. High-isolation (>31 dB) low-envelop correlation coefficient (ECC...
A novel structure of a near-field communication (NFC) antenna for mobile handset is proposed by changing the sequence loop winding and modifying inner structure. In general, sintered ferrite sheets with higher relative permeability (μr ≈ 200) have been used to reduce performance deterioration NFC antennas due eddy current in battery pack handset. However, their costs are high, they considerably breakable. this letter, we effectively enhance an employing ferrite-polymer composite lower 55)....
In this paper, fundamental reliability findings in 14nm bulk FinFET technology, are systematically investigated. From device and Ring Oscillator stress to product-level HTOL results, we show that BTI on (110) Fin can be improved significantly with optimized process. addition, variability small Fins does not pose any risk we'll 1000hrs of data 128Mb SRAM. Self-heating effect (SHE) was characterized for both logic I/O devices verified through simulations thermal imaging product design...
Transistor mismatch data and analysis from poly/SiON high-k/metal-gate (HKMG) bulk CMOS technologies are presented. It is found that the traditional figure of merit Pelgrom plot (A <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">VT</sub> ) continuously scales down as technology advances. Furthermore, A values for both nFET pFET in HKMG significantly reduced technologies. By normalizing against electrical oxide thickness (T...
Middleboxes are widely deployed in order to enhance security and performance networking.As communication over TLS becomes increasingly common, however, the end-to-end channel model of undermines efficacy middleboxes.Existing solutions, such as 'SplitTLS', which intercepts sessions, often introduce significant risks by installing a custom root certificate or sharing private key.Many studies have confirmed vulnerabilities when combining with middleboxes, include validation failures, use...
Abstract Given graphs over a common vertex set of size , what is the maximum value having no “colorful” copy that is, containing at most one edge from each ? Keevash, Saks, Sudakov, and Verstraëte denoted this number as completely determined for large . In fact, they showed that, depending on two natural constructions always extremal construction. Moreover, conjectured same holds every color‐critical graphs, proved it 3‐color‐critical graphs. They also asked to classify have only these...
This paper presents an all digital delay-locked loop (DLL) which achieves low jitter and stable duty cycle correction (DCC) operation. Since the DLL has dual DCC circuit, with combinations of two circuits, can correct +12.9% -6.13% error under 2% at 333 MHz 1.6 V. The operates up to 1.67 GHz 1.8 V 1.78 2.0 supply voltage, its peak-to-peak 1.4 is 29 ps. power dissipations are 4.2 mW (5 mW) 100 19.8 (29.5 1 1.5 (1.8 V) voltage help update gear circuit from previous work. And fabricated 54-nm...
In this paper, a physical mechanism for hot carrier injection (HCI) induced trap generation and degradation in bulk FinFETs is investigated verified with both experiment simulation evidence. HCI mainly caused by interface states generated drain avalanche injection. From model, impact ionization intensity, location trapping immunity are proposed as key parameters to modulate degradation. reliability I/O severely degraded respect planar FETs because of the enhanced capability gate control...
High-performance multiscale metallic transparent conductors (TCs) are demonstrated by incorporating Ag nanowire (NW) networks into microscale grid structures. Highly conductive grids fabricated via direct imprinting of an ion ink using a reservoir-assisted mold. In this mold, macroscale cavity, called the "reservoir", is designed to connect grid-patterned cavity. The reservoir has large cavity volume, which reduces unwanted residual layers within spacings introducing thinner liquid film....
In this work, a unique comprehensive and comparative analysis of photoinduced charge generation, recombination kinetics, energy losses has been carried out to study the effect different fullerene-based acceptors (FBAs) nonfullerene (NFAs) on performance organic solar cells (OSCs). For this, FBAs, specifically ICBA, PC60BM, PC70BM, NFAs, namely, ITIC, IT-4F, IEICO-4F, were employed independently along with particular donor polymer, PBDB-T, fabricate bulk heterojunction OSCs their performances...
Abstract It is well-known that every tournament contains a Hamilton path, and strongly connected cycle. This paper establishes transversal generalizations of these classical results. For collection $$\textbf{T}=(T_1,\dots ,T_m)$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:mi>T</mml:mi> <mml:mo>=</mml:mo> <mml:mo>(</mml:mo> <mml:msub> <mml:mn>1</mml:mn> </mml:msub> <mml:mo>,</mml:mo> <mml:mo>⋯</mml:mo> <mml:mi>m</mml:mi> <mml:mo>)</mml:mo> </mml:mrow>...
A 512 Mbit consumer DDR2 SDRAM that uses self-dynamic voltage scaling (SDVS) and adaptive design techniques is introduced in this paper. With the increase significance of process variation, higher performance requirements reduce allowable margin DRAM circuits. However, gives a greater timing circuitry by changing internal supply response to operating frequency skew. By voltage, life time chip increases more than 23 times when lowered 300 mV. The proposed include an bandwidth delay-locked...
In this paper, random telegraph noise (RTN) induced ΔV th variation under the worst bias condition is experimentally investigated. The results show that significantly increases with gate bias, which confirms RTN amplitude should be evaluated and modeled full swing. Moreover, impacts of BTI aging on are further studied. experimental after still at same range as “time zero” condition. For device size used in study, no extra guard-band design margin seems necessary if time0 can capture such...
Next-generation transparent conductors (TCs) require excellent electromechanical durability under mechanical deformations as well high electrical conductivity and transparency. Here we introduce a method for the fabrication of highly conductive, low-porosity, flexible metal grid TCs via temperature-controlled direct imprinting (TCDI) Ag ionic ink. The TCDI technique based on two-step heating is capable not only stably capturing ink, but also reducing porosity thermally decomposed...
Performance improvements in mobile devices with multi-cores and enhanced graphics quality requires higher memory bandwidth. Consequently, the design of I/O becomes a crucial issue [1]. In LPDDR interface, ground-terminated interface is used for low-noise termination voltage (V <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">ss</sub> ) small capacitance (C xmlns:xlink="http://www.w3.org/1999/xlink">IO</sub> [2,3]. Even through noise margins power...
The role of lymphocyte antigen 6 complex, locus K (LY6K) in breast cancer has been studied, whereas the epigenetic control LY6K transcription is not fully understood. Here, we report that patients with increased expression had shorter disease-free and overall survival than low levels by multivariate analysis. also was upregulated distant metastases those without metastases, downregulating E-cadherin expression. Furthermore, xenograft tumor volumes from knockdown nude mice were reduced...