A5023948292- Analytical Chemistry and Sensors
- Sensor Technology and Measurement Systems
- Analog and Mixed-Signal Circuit Design
- Electrochemical sensors and biosensors
- Advancements in PLL and VCO Technologies
- X-ray Diffraction in Crystallography
- Photonic and Optical Devices
- Crystallization and Solubility Studies
- Biomedical and Engineering Education
- Enzyme Structure and Function
- 2D Materials and Applications
- Non-Invasive Vital Sign Monitoring
- Quantum and electron transport phenomena
- Advanced Sensor and Energy Harvesting Materials
- Advanced Chemical Sensor Technologies
- Ga2O3 and related materials
- Graphene research and applications
- Advancements in Semiconductor Devices and Circuit Design
- Biomedical Ethics and Regulation
- Conducting polymers and applications
- Mechanical and Optical Resonators
- Electrochemical Analysis and Applications
- ZnO doping and properties
- Advanced MEMS and NEMS Technologies
- Electrical and Bioimpedance Tomography
Taiwan Semiconductor Manufacturing Company (Taiwan)
2020-2022
National Cheng Kung University
2011-2021
China Medical University
2021
University of California, Irvine
2009
Electrochemical impedance spectroscopy (EIS) is a widely used technique in biomedical and chemical analysis. A novel 10-bit impedance-to-digital converter (IDC), which can measure directly convert the magnitude phase of to digital codes, proposed for EIS measurement system. The IDC composed magnitude-to-digital (MDC) phase-to-digital (PDC). was designed fabricated using 0.35 μm 2P4M mixed-signal polycide process, core area only 0.07 mm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML"...
An airflow sensing chip, which integrates MEMS sensors with their CMOS signal processing circuits into a single is proposed for respiration detection. Three micro-cantilever-based were designed and fabricated using 0.35 μm CMOS/MEMS 2P4M mixed-signal polycide process. Two main differences present among these three designs: they either metal-covered or metal-free structures, had bridge-type fixed-type reference resistors. The performances of measured compared, including temperature...
A monolithic airflow detection chip is proposed for respiration rate monitoring, and it integrates MEMS sensors with their CMOS signal processing circuits into a single chip. In fact, one major issue of integrating resistive how to deal the dc offset caused by inherent resistance mismatches in sensors. this paper, an automatic calibration proposed. Moreover, there are two cantilever-based sensors, metal-covered metal-free, The sensor was designed validating simulation results CoventorWare,...
A novel dual-mode ac signal processing integrated chip for urinalysis is proposed. Electrochemical impedance spectroscopy (EIS) analysis method adopted in this chip. Compared with other electrochemical detection methods such as cyclic voltammetry (CV), the EIS required time shorter. In addition, its circuits can be directly and effectively into a chip, because input, output, measured signals are all electrical signals. The presented consists of entire front-end input sensing bio-sample...
A high-accuracy pulse-based analog divider with 12-bit digital output is proposed in this letter. Moreover, a comparator-delay-free voltage-to-pulse generator (VPG) and pulse (PDV) are proposed: the on-time of VPG-generated pulses proportional to its input voltage, free from comparator delay; PDV performs functions an analog-to-digital converter, so code directly. The chip was fabricated using 0.35-μm 2P4M 3.3-V mixed-signal polycide process. According measured results, maximal error only...
A 10-bit segmented digital-to-time converter (DTC) with offset calibration is proposed. The architecture (2-bit binary code + 8-bit thermometer code) adopted in the proposed DTC to reduce impact of process variation on linearity. Moreover, relative time generation used for getting high resolution, and circuit also implemented calibrate error inherent generation. was fabricated using TSMC 0.18μm 1P6M mixed-signal process. resolution designed be order 10ps, total output timing range 10 ns....
Monolayer hexagonal boron nitride (hBN) has attracted interest as an ultrathin tunnel barrier or environmental protection layer. Recently, wafer-scale hBN growth on Cu(111) was developed for semiconductor chip applications. For basic research and technology, understanding how perturbs underlying electronically active layers is critical. Encouragingly, hBN/Cu(111) been shown to preserve the surface state (SS), but it unknown tunneling into this SS through varies spatially. Here, we...
Electrochemical impedance spectroscopy (EIS) is a widely used technique in biomedical and chemical analysis. A prototype of comparative frequency response analysis (FRA) system for measuring EIS proposed this work. Compared to traditional FRA-based systems, neither quadrature sinusoidal signals nor two identical sensing paths are needed. The experimental results based on molecularly imprinted polymers (MIPs) detection melatonin solutions shown validate the measurement system.
In an electrochemical impedance spectroscopy (EIS) measurement system, it needs to calculate the amplitude ratio between reference signal and measured signal, which reqiures a divider. this work, chip, cosists of peak detectors, divider other processing circuits, was proposed for EIS system. This chip is capable obtaining signals. The fabricated by using 0.35μm CMOS/MEMS 2P4M mixed-signal polycide process, frequency input can range from 10 Hz kHz.
Stem cells have become indispensable in tissue engineering and regenerative medicine applications, which provides a suitable opportunity to observe stem cell therapy from technology development. This research aims evaluate the developmental trends of industry. Results show that diagram mutual citation patents relationships between patent citations specific applications via network structure. Finally, implications strategies are proposed for future industry
An admittance-to-digital-impedance converter (ADIC) for impedance measurement is proposed. The ADIC was integrated in a chip with programmable sinusoidal frequency synthesizer, allowing an operating range from 0.1 Hz to 10 kHz. synthesizer generates voltage signals sample under test (SUT), and the resulting current signal SUT sensed sent postprocessing. In fact, this proportional admittance, rather than its impedance. Hence, proposed has two functions: taking reciprocal of make it converting...