Ye Gyun Lee

Tae Hwan Kwon

Ji Seong Lee

Seung Soo Kwak

Jae Eun Kim

Hoon Min Jang

Hee Bae Kim

Jong Hyun Park

Hyeon Je Choe

Min Seong Kim

Hyun Soo Han

Yong Ki Yun

Yun Seong Lee

Seong Jin Yun

Dong Hee Han

Hyo Bin Choi

Tae Young Choi

Jeong Seok Kim

Ji Hee Han

Yong Hwan Park

Seong Hun Lee

Sang Hun Lee

The Optimal Analysis & Solutions for Integrated Systems (OASIS) laboratory focuses on integrated systems analysis and solutions.

통합 시스템을 위한 최적 분석 및 솔루션(OASIS) 연구실은 통합 시스템 분석 및 솔루션에 중점을 둔다.

Capless LDO regulator achieving− 76 dB PSR and 96.3 fs FOM

전압 추적 시 언더슈트를 최소화한 hybrid SAR 방식의 capless 디지털 저 드롭아웃 레귤레이터

An IR proximity-based 3D motion gesture sensor for low-power portable applications

포토트랜지스터를 이용한 두 축을 조절하는 범용 추적 센서

디지털 필터링을 이용해 격막의 높이를 낮춘 모션 제스처 센서

정적 전류가 흐르지 않는 Start-up 회로를 이용한 밴드 갭 레퍼런스 회로 구현

최대 전력 점 추적 알고리즘을 포함한 고효율의 정전식 에너지 수확기 회로의 설계

High PSRR 을 위한 Wide load range capacitor-less LDO 설계

저전력 IoT 센서 구동을 위한 태양광 에너지 하베스팅을 위한 IV Curve 전력 계산회로

High Slew Rate Op-amp 를 통한 전력 효율 및 부하 변화 반응 최적화 LDO 설계

초퍼 안정화 방식을 이용한 저 잡음 정전 결합 계측 증폭기

Optimizing CML-CMOS Converter Through Sizing Transistors for Producing 50% Duty Square Wave

PV System 제어를 위한 Synchronous Buck Converter 및 IV Curve Tracer 구현

16 x 10 Pressure Sensor CMOS Driver IC for Resistance Interfence Calibration of Cells

A BJT/Resistor Hybrid CMOS Temperature Sensor With Low 3σ-Inaccuracy at 0-pt Trim

가시광선 LED 기반의 4 방향 추정 센서

RF 통신을 위한 직렬 5 비트 SAR ADC

다중 입력 에너지 하베스팅을 위한 알고리즘

배터리 셀 (Cell) Stack 과 집전판 간 Welding Crack 진단 시스템 시뮬레이션

Temperature sensor 의 온도 측정 오차를 줄이기 위한 Current Regulator 구현

태양전지 전력 계산 회로를 이용한 높은 효율의 MPPT 알고리즘 설계

VCSEL 전류의 Rise&Fall time mismatch 조절을 위한 Driver IC 구현

A digital LDO regulator with a self-clocking burst logic for ultralow power applications

전원 전압 변화에 둔감한 Multiple-Pass 링 발진기 설계

다 채널 출력 전류 모드 유도 전력 전달 회로

Time-of-flight sensor 의 거리 측정 오차를 줄이기 위한 VCSEL driver 시스템 구현

Robust multi-event detection for pulsed LiDARs

A Vernier TDC with a Time Multiplier Achieving FoM of 0.079 pJ/conversion

Capless Low-Dropout Regulator with a Dual Feedback Loop and Voltage Dampers

On-road dynamic pattern projection using an active mirror for vehicle warning systems

Efficient maximum power point tracking for a distributed PV system under rapidly changing environmental conditions

Asymmetric SECE piezoelectric energy harvester under weak excitation

Message queue telemetry transport broker with priority support for emergency events in Internet of Things

차량 내부네트워크 정보를 이용한 전기차 총 중량 추정

Uniform Temperature Control for MEMS Gas Sensors Under Mismatch Conditions

PSIM 을 이용한 차량용 컨버터의 Switching Device 평가

변압기의 이상 신호 데이터를 축적하기 위한 원거리 진단 시스템 개발

ToF sensor 드라이버를 위한 VCSEL 레이저 다이오드의 모델링과 인덕턴스가 미치는 영향

태양광 발전을 위한 단일 패키지 IV-곡선 추적 모듈

높은 효율을 위한 DC-DC 컨버터 Zero-Current-Switching 시스템

새로운 구조의 리어 램프용 노면 라이팅 모듈 설계

Review of Memory RAS for Data Centers

High Slew Rate Op-amp 를 통한 Wide load range capacitor-less LDO 설계

Hybrid Medium Access Control for Time-switching Simultaneous Wireless Information and Power Transfer.

Temperature-aware adaptive control for automotive front-lighting system

Unbounded Binary Search Method for Fast-tracking Maximum Power Point of Photovoltaic Modules

향상된 RMS-to-DC 컨버터 구현

A low flicker TRIAC dimmable direct AC LED driver for always-on LED arrays

A 3D touchless hand navigation sensor for small-size and low-power applications

Design of Road Surface Lighting System for Rear Lamp using Automotive Ultrasonic Sensor

Low-power motion gesture sensor with a partially open cavity package

Simulink 를 이용한 하이브리드 차량용 전장부하 및 LDC 모델링

디지털 LDO 에서 쓰이는 빠른 레퍼런스 추적 알고리즘

넓은 입력 범위의 PV-cell 에너지 하베스팅을 위한 시스템

And then there were none

All-or-none measurement raises the bar on performance

Magainin 2 revisited: a test of the quantitative model for the all-or-none permeabilization of phospholipid vesicles

Single-cell imaging of caspase-1 dynamics reveals an all-or-none inflammasome signaling response

The all‐or‐none phenomenon revisited

None to accompany me

Free tissue failure is not an all-or-none phenomenon

None of these diseases

328. note: the use of none-parametric methods in the statistical analysis of the two-period change-over design

All or none hypothesis: a global-default mode that characterizes the brain and mind.

Some-or-none characteristics of coding behavior

The New Laches: Creating Title Where None Existed

p53—a Jack of all trades but master of none

A billion black Anthropocenes or none

Then there were none

Leave none to tell the story

Is any explanation better than none

Is a jack-of-all-temperatures a master of none?

Enzyme induction as an all-or-none phenomenon

Rule over none I: What justifies democracy?

None too simple: Examining issues of religious nonbelief and nonbelonging in the United States

None is too many: Canada and the Jews of Europe, 1933-1948

None of this is normal: The fiction of Jeff VanderMeer

ChatGPT: Jack of all trades, master of none

Modernity: One, none, or many? European origins and modernity as a global condition

Affective education or none at all.

It's your misfortune and none of my own: A new history of the American West

The Biochemical Basis of an All-or-None Cell Fate Switch in Xenopus Oocytes

The worldwide governance indicators: six, one, or none?

Life quality comparison in type 2 diabetic patients and none diabetic persons

... And then there were none: the diminution of the federal jury

Subcultures, scenes or tribes? None of the above

Ten modes of individualism—none of which works—and their alternatives

None of us will return

Individual matching with multiple controls in the case of all-or-none responses

None too solid: Medical ignorance

Army of none: Autonomous weapons and the future of war

With justice for none

And then there were none?

Wedensky inhibition in relation to theall-or-none'principle in nerve

A decade of corporate women: some progress in the boardroom, none in the executive suite

Two times or none?

None like us: Blackness, belonging, aesthetic life

“Top-down” effects where none should be found: The El Greco fallacy in perception research

All-or-none potentiation at CA3-CA1 synapses

ERROR CORRECTION CODE CIRCUIT, MEMORY DEVICE INCLUDING ERROR CORRECTION CODE, AND OPERATION METHOD OF ERROR CORRECTION CODE

APPARATUS FOR CONTROLLING LED USING MEMRISTOR AND METHOD THEREOF

DISPLAY DEVICE AND METHOD FOR CONTROLLING LIGHT-EMITTING ELEMENT BY USING MEMRISTOR

Drive apparatus and distance measurement sensor including the same

Energy harvester

Vehicle and dc-dc converter for a vehicle

Vehicle capable of projecting light onto road and control method therefor

Image sensor for extracting edge information

LOW DROP-OUT REGULATOR AND DISPLAY DEVICE INCLUDING THE SAME

RECTIFIER CIRCUIT AND PIEZOELECTRIC ENERGY HARVESTER COMPRISING THE SAME

MOTION GESTURE SENSING MODULE AND MOTION GESTURE SENSING METHOD

Facility monitoring System

ENERGY HARVESTER

BATTERY SYSTEM OF ECO-RFIENDLY VEHICLE AND METHOD FOR CONTROLLING THE SAME

High power VCSEL driver

LIGHT APPARATUS, LIGHT DRIVING APPARATUS AND DRIVING METHOD THEREOF

DIGITAL LOW-DROPOUT REGULATOR REDUCING QUIESCENT CURRENT

LOW DROP-OUT REGULATOR USING AN ADAPTIVELY CONTROLLED NEGATIVE CAPACITANCE CIRCUIT FOR IMPROVED PSRR

INFRARED IMAGE SENSOR FOR DEPTH CAMERA

TOUCHLESS 3D POSITION SENSOR

DEVICE AND METHOD FOR DISCRIMINATING BANKNOTES

IMAGE SENSOR FOR EXTRACTING EDGE INFORMATION

Motion gesture sensing module and motion gesture sensing method

Apparatus and method for processing multiple trigonometric approximation of sine waveform, and apparatus and method for synthesizing direct digital frequency using the same

FULLY DISTRIBUTED DYNAMIC VOLTAGE SCALING SYSTEM

BJT/resistor CMOS temperature sensor eliminating high-order temperature coefficients

Walk-error mitigation with a TAC for LiDARs

Multi-event detecting receiver for pulsed LiDARs

method and device for mutual interference rejection with amplitude modulation for LiDARs

LIGHTING EMITTING DEVICE PACKAGE

VEHICLE AND METHOD OF PROJECTING LIGHT ON ROAD

APPARATUS OF DRIVING LIGHT EMITTING DEVICE

Vehicle and DC-DC Converter for Vehicle

LIGHT SENSOR AND LIGHT TRACKING DEVICE COMPRISING THE SAME

High concentrator photovoltaics: fundamentals, engineering and power plants

Fast-response supercapacitors with graphitic ordered mesoporous carbons and carbon nanotubes for AC line filtering

Efficient stationary solar thermal collector systems operating at a medium-temperature range

A 2 GHz 130 mW direct-digital frequency synthesizer with a nonlinear DAC in 55 nm CMOS

Power conversion in concentrating photovoltaic systems: central, string, and micro‐inverters

Modeling of a concentrating photovoltaic system for optimum land use

A novel method to extract the series resistances of individual cells in a photovoltaic module

Tracking control of high‐concentration photovoltaic systems for minimizing power losses

Low drop-out regulator and display device including the same

Single chip dual plate capacitive proximity sensor with high noise immunity

Message Queue Telemetry Transport Broker with Priority Support for Emergency Events in Internet of Things

A motion gesture sensor using photodiodes with limited field-of-view

A Digital LDO Regulator With a Self-Clocking Burst Logic for Ultralow Power Applications

Single-package motion gesture sensor for portable applications

A high speed low-power accumulator for direct digital frequency synthesizer

Development and analysis of an origami-based elastomeric actuator and soft gripper control with machine learning and emg sensors

Ldo regulator optimized on power efficiency and load transient response with voltage damper and body loop feedback

Yong Sin Kim

The aim of this book is to provide a comprehensive overview of the fundamentals and engineering of high concentrator photovoltaic (HCPV) technology and to elucidate how this complex and emerging technology is applied in power plants. It is the first of its kind to focus exclusively on HCPV technology and offers a valuable reference volume to readers. This book is the result of an international collaboration among experts and each chapter is written by a specialist in the field. The conversion of solar energy to electricity plays an important role in power generation and HCPV is signalled by many researchers and professionals as one of the most promising sources of solar power. Therefore this book provides an important resource for companies, research institutes and universities to assist with the understanding of fundamentals, different applications and potential of such technology.

Replacing the bulky aluminum electrolytic capacitors (AECs) used extensively in AC line filtering with a compact supercapacitor would contribute greatly to the miniaturization of electronic devices. However, the supercapacitors developed for AC line filtering have limited application voltages of ≤∼20 V. To extend the range of application voltages, it is essential to design carbon electrode materials with a suitable pore structure. This paper reports that graphitic ordered mesoporous carbon (GOMC) can be used as an electrode material in supercapacitors for AC line filtering applications. By utilizing the open pore structure of GOMC, which is also known as CMK-3, a 2.5 V supercapacitor with a high areal capacitance (Careal ∼ 560 μF cm−2 at 120 Hz) and a fast frequency response (ϕ ∼ −80° at 120 Hz) was realized. Importantly, the addition of a small amount of CNTs to the CMK-3 results in the formation of an efficient …

In this paper, a stationary solar thermal collector system using an evacuated glass and a counter-flow tube for medium is modeled, analyzed, fabricated, and tested. The proposed non-tracking system consists of an evacuated counter-flow type absorber paired with an external compound parabolic concentrators (XCPC) as a non-imaging reflector. This configuration allows the system to operate with a high solar thermal efficiency for medium working temperature (100–300 °C). Efficiencies for both East–West and North–South orientations are modeled and measured at various working temperatures. Simulation and experimental test results show that the proposed configuration outperforms other non-tracking solar thermal systems and can achieve more than 40% efficiency above 200 °C.

The performance of switching devices such as display driver ICs is degraded by large power supply noise at switching frequencies from a few hundreds of kilohertz to a few megahertz. In order to minimize the power supply noise, a low-dropout (LDO) regulator with higher power supply rejection (PSR) is essential. In this brief, a capless LDO regulator with a negative capacitance circuit and voltage damper is proposed for enhancing PSR and figure of merit (FOM), respectively, in switching devices. The proposed LDO regulator is fabricated in a 0.18 μm CMOS. Measurement results show that the proposed LDO regulator achieves -76 dB PSR at 1 MHz and 96.3 fs FOM with a total on-chip capacitance of as small as 12.7 pF.

When conventional maximum power point tracking (MPPT) techniques are required to operate fast under rapidly changing environmental conditions, a large power loss can be caused by slow tracking speed, output power fluctuation, or additionally required ad hoc parameters. This paper proposes a fast and efficient MPPT technique that minimizes the power loss with the adaptively binary-weighted step (ABWS) followed by the monotonically decreased step (MDS) without causing output power fluctuation or requiring additional ad hoc parameter. The proposed MPPT system for a photovoltaic (PV) module is implemented by a boost converter with a microcontroller unit. The theoretical analysis and the simulation results show that the proposed MPPT provides fast and accurate tracking under rapidly changing environmental conditions. The experimental results based on a distributed PV system demonstrate that the …

This paper presents a direct digital frequency synthesizer (DDFS) based on the nonlinear DAC with a maximum operating frequency of 2 GHz. This work proposes three design methods to enhance the performance of a DDFS. First, a multi-level momentarily activated bias is proposed to reduce power dissipation in the phase accumulator. Second, a coarse phase-based consecutive fine amplitude grouping scheme is presented to reduce hardware complexity and power consumption in the digital decoder. Third, the mixed-wave conversion topology in the nonlinear DAC is proposed to improve the output spectral purity. The DDFS with 9 bit amplitude resolution is capable of producing a minimum spurious-free dynamic range (SFDR) of 55.1 dBc up to Nyquist frequency at the clock frequency of 2 GHz. The prototype DDFS is fabricated in a 55-nm CMOS. It occupies an active area of 0.1 mm 2 with a total power …

In this paper, concentrating photovoltaic (CPV) systems coupled with various inverter configurations are modeled, compared, and tested. Because CPV systems use optics to concentrate sunlight onto highly efficient PV cells, the systems are affected not only by mismatches in the I–V characteristics among individual PV cells but also by the electro‐optical mismatches of each concentrator. The best way to minimize power losses by these mismatches is having higher quality controls in aligning at the time of manufacturing and installation. To mitigate the power losses when mismatches are present, electrical components can be considered at the expense of additional cost. The developed models for central, string, and micro‐inverters allow an accurate estimation of power losses in CPV systems and can be used to find an optimum solution for various power conversion schemes on the basis of the given mismatch …

Concentrating photovoltaic solar power plants using dual‐axis trackers are in increasing demand. In a utility‐scale photovoltaic system, both capacity factor and ground coverage ratio are widely used to characterize systems in view of the land use efficiency. Current system modeling approaches lack accurate location‐specific direct normal irradiance (DNI), miss a reliable electrical model for power optimization and conversion and are inadequate for optimizing the tracker array configuration. In this paper, a comprehensive modeling of a concentrating photovoltaic system is introduced. First, a more accurate estimation of hourly DNI is obtained by considering location‐dependent DNI and air mass changes according to the sun's elevation. Second, mismatch effects of modules are factored in. Third, various power optimization and conversion levels are taken into account for optimization with self‐shading in each …

Non-disruptive cell-level characterization of a photovoltaic module is presented. Previous works have developed methods to extract the shunt resistances and the short circuit currents of individual cells, but their series resistances have not been characterized yet. In this paper, a novel methodology that quantifies the series resistances of individual cells is developed by using a partial shading technique with two different shading ratios. The simulation and experimental test results are presented for validation.

This paper presents three key factors that cause system mismatches and power losses in high‐concentration photovoltaic (HCPV) systems. The first factor is the I–V mismatch within a module, similar to the manufacturing mismatches in conventional photovoltaic modules. The second factor is the misalignments amongst modules, and the third factor is the tracking control. Unlike in the conventional photovoltaic systems, the second and the third factors in HCPV systems introduce larger electro‐optical mismatches due to narrow acceptance angles. We have developed a model to address these three factors. It allows an accurate estimation of power losses in HCPV systems, which enabled us to propose configurations to reduce power losses without adding additional electrical components to the system. Simulation results show that the power harvest can be increased as much as 8.5% for a system using open‐loop …

A low drop-out (LDO) regulator includes a pass transistor, a feedback circuit, an error amplifier, and a compensation unit. The pass transistor is configured to regulate a power supply and output an output voltage according to a control signal. The feedback circuit is configured to generate a feedback voltage based on the output voltage. The error amplifier is configured to output a comparison signal in response to a reference voltage and the feedback voltage. The compensation circuit is configured to generate a nega tive capacitance in association with a first node connected to a gate electrode of the pass transistor.

This letter presents a dual plate capacitive proximity sensor (PS) that is integrated into a single chip with high environmental noise immunity. To efficiently reject environmental noise, the proposed PS employs two noise rejection techniques: 1) the use of a switched-charge amplifier and 2) synchronous sampling/filtering technique. The proposed PS is fabricated using a standard CMOS 0.5- μm process, and it occupies an area of 0.7 mm × 0.3 mm. Experimental results show that the proposed PS can detect an object up to 8 cm away from the sensor at an average current of 370 μA with a resolution of 1% output frequency.

This paper presents a message queue telemetry transport (MQTT) broker with priority support for emergency events in the Internet of Things (IoT), which is abbreviated p-MQTT. To support the timely and reliable message delivery of emergency events, the p-MQTT classifies the published messages coming into the broker server and controls their priority according to the classification results. To this end, the p-MQTT consists of three components: virtual queue, classification, and priority control. The virtual queue stores the published messages separately according to their type, for which the p-MQTT broker server maintains three virtual queues: Urgent, Critical, and Normal. The classification component classifies the published messages into the three types mentioned above by checking the message type field in the published message header and stores the messages in the appropriate virtual queue. Finally, the …

This paper presents a low-power and small-size motion gesture sensor (MGS) based on an active infrared (IR) proximity sensor. While conventional proximity-based MGSs require two LEDs (the most power-hungry components) and one photodiode, the proposed MGS eliminates one of LEDs at the expense of an additional photodiode as a separate channel. In conjunction with an optical block that limits the field-of-view of each photodiode, the power consumption and area of the proposed MGS can be reduced by up to 52% and 69%, respectively, compared with conventional proximity-based MGSs. Optical simulation and test results validate theoretical analysis presented.

The conventional infrared (IR) proximity-based three-directional (3D) motion gesture sensors (MGSs) detect hand motion by using either a single IR LED and multiple photosensors or multiple IR LEDs and a single photosensor. Since an IR LED is the most power hungry component, MGSs with a single IR LED and multiple photosensors are preferred for low-power applications. In this configuration, the recognition rate of an MGS is the function of the space between each photosensor. In order to achieve a high recognition rate, external photosensors resulting in a large form factor are inevitable. In this paper, a 3D MGS for low-power portable applications is proposed. The proposed optical blocks allow for a small form factor and ultra-low profile packaging by integrating photosensors in a single chip.

Conventional capless digital low-dropout (DLDO) regulators adopt either a high-speed clock or the burst mode at the expense of a larger quiescent current in order to overcome the degradation of the load transient response caused by the absence of an external capacitor, which causes high power consumption. In this paper, a capless DLDO regulator with a self-clocking burst logic for ultralow power applications is proposed. The selfgenerated clock in the burst mode of the proposed burst logic is activated temporally in order to achieve both faster load transient response and lower quiescent current. The proposed DLDO regulator is implemented in 14-nm FinFET CMOS technology. The quiescent current and figure-of-merit (FoM) of the proposed DLDO regulator are 0.69 μA and 0.097 ps, respectively, with an active area of 0.0035 mm 2 , excluding a 0.1-nF integrated output capacitor.

Proximity-based motion gesture sensors (MGSs) using IR LEDs have been widely researched for contactless human-machine interfaces. Conventional MGSs have incorporated discrete photodiodes into a receiver, which prevents them from being adopted for portable handheld devices because of their large size and high profile. This paper proposes a proximity-based contactless MGS that embeds photodiodes and a motion detection algorithm into a single package. The area and height of the proposed optical structure including photodiodes and an optical block are reduced by 96.2% and 71.7%, respectively, compared with the most recently developed MGS. Furthermore, the proposed sensor achieves a recognition rate of over 99.5% on average at various speeds of hand movements. A prototype system is implemented and tested for validation1.

A high speed low-power 32-bit accumulator for direct digital frequency synthesizer (DDFS) is presented. The DDFS consists of a phase accumulator, a phase-to-sine amplitude converter, and a D/A converter. For accumulator design, high speed pipelining scheme is commonly used to increase throughput and to reduce power consumption. Our design decreases power consumption and the number of registers down to 24% and 37% of the conventional pipelined accumulator

This study investigates the characteristics of a novel origami-based, elastomeric actuator and a soft gripper, which are controlled by hand gestures that are recognized through machine learning algorithms. The lightweight paper–elastomer structure employed in this research exhibits distinct actuation features in four key areas: (1) It requires approximately 20% less pressure for the same bending amplitude compared to pneumatic network actuators (Pneu-Net) of equivalent weight, and even less pressure compared to other actuators with non-linear bending behavior; (2) The control of the device is examined by validating the relationship between pressure and the bending angle, as well as the interaction force and pressure at a fixed bending angle; (3) A soft robotic gripper comprising three actuators is designed. Enveloping and pinch grasping experiments are conducted on various shapes, which demonstrate the gripper’s potential in handling a wide range of objects for numerous applications; and (4) A gesture recognition algorithm is developed to control the gripper using electromyogram (EMG) signals from the user’s muscles.

This paper presents the design of low-dropout (LDO) regulator optimized on power efficiency and load transient response. As the LDO is always-on block, the quiescent current is a critical parameter of LDO. The proposed circuit includes an op-amp which shows high slew rate with low quiescent current. A voltage damper circuit is included for fast load transient response. A body feedback loop helps the LDO regulator to react to relatively slow distortion of the output voltage. The proposed LDO regulator is fabricated in a 180 nm CMOS process. The test results show that maximum undershoot is 125.9 mV during load transient and 0.177 ns/ m figure-of-merit (FOM) at the quiescent current of 0.02532 mA.

researched on maximizing power harvest in distributed photovoltaic systems

involved in developing sensors for human-machine interface

Professor

OASIS (Optimal Analysis and Solutions for Integrated Systems)

교수님 소개

김용신

연구실 소개

연구실 키워드

알럼나이가 간 회사

연구실 지원 방법

대우 조건

연도별 논문 인용수

저널 & 학회 논문 출판 수

연구실 논문 목록

A Vernier TDC with a Time Multiplier Achieving FoM of 0.079 pJ/conversion

Two times or none?

A Vernier TDC with a Time Multiplier Achieving FoM of 0.079 pJ/conversion

연구실 보유 특허

대학별 입시끈

우리 연구실 모집

교수님 소개

김용신

연구실 키워드

알럼나이가 간 회사

연구실 지원 방법

대우 조건

연도별 논문 인용수

저널 & 학회 논문 출판 수

연구실 논문 목록

A Vernier TDC with a Time Multiplier Achieving FoM of 0.079 pJ/conversion

Two times or none?

A Vernier TDC with a Time Multiplier Achieving FoM of 0.079 pJ/conversion

연구실 보유 특허

최근 3년간 연구실적 높은 연구실

대학별 입시끈

우리 연구실 모집