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Article
Engineering, Electrical & Electronic
Elisabetta Moisello et al.
Summary: This article introduces a MOS-based on-chip temperature sensor system that meets both high-resolution and low inaccuracy requirements, with only one temperature calibration point. Therefore, the proposed temperature sensor system is a low-cost solution that can effectively address the needs of the expanding market for system-on-chips (SoCs), mobile and wearable devices, and consumer electronics. The temperature sensor utilizes a two-phase time-domain architecture, with a single NMOS transistor as the sensing element biased alternately with different currents to achieve inherent inaccuracy reduction. The proposed sensory system, fabricated in a standard 130-nm CMOS process, includes a switched-capacitor analog interface circuit and a 1-bit second-order sigma-delta (ΣΔ) analog-to-digital converter (ADC) in addition to the sensor core.
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2023)
Article
Engineering, Electrical & Electronic
Elisabetta Moisello et al.
Summary: This paper presents a microsystem suitable for contact-less human body temperature measurements, as well as for presence, motion and proximity detection. The system consists of a 130-nm CMOS-SOI MEMS thermal sensor and its interface circuit, achieving high sensitivity and precision for temperature measurements and successful performance as a motion and proximity detector.
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS
(2022)
Article
Computer Science, Hardware & Architecture
Yosef Lempel et al.
Summary: This article describes a miniaturized current controlled oscillator (CCO) sensor for temperature monitoring and regulation in microprocessors. The sensor has a small area and low energy consumption in the 16-nm FinFET process, while also showing fast response. It provides accurate temperature measurements over a wide range and is suitable for high-density thermal sensing.
IEEE TRANSACTIONS ON VERY LARGE SCALE INTEGRATION (VLSI) SYSTEMS
(2022)
Article
Engineering, Electrical & Electronic
Aditi Jain et al.
Summary: This brief introduces a high-performance, low-power temperature sensor suitable for wireless IoT devices/RFID tags. The sensor utilizes a mostly digital approach and a resistor-based temperature sensor to achieve low-power and energy-efficient operation. It employs a sampled, incomplete-settling, switched-capacitor-based Wheatstone bridge read out using a digital frequency-locked loop (DFLL) and harnesses quasi-periodic limit cycles to reduce in-band noise.
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS
(2022)
Article
Chemistry, Analytical
Moshe Avraham et al.
Summary: This study presents the development of a novel uncooled thermal sensor that allows remote temperature sensing and fever screening. It provides high accuracy and resolution, making it useful for identifying COVID-19 victims quickly.
Article
Chemistry, Analytical
Elisabetta Moisello et al.
Summary: This paper presents a detailed analysis of a micromachined thermopile detector with high responsivity and a versatile mosaic structure. Two versions of the detector, featuring different series/parallel connections, were characterized and compared to other sensors. The application of these detectors as proximity detectors was verified.
Proceedings Paper
Engineering, Electrical & Electronic
Elisabetta Moisello et al.
Summary: This paper presents a novel micromachined high-responsivity thermopile sensor that is fully compatible with standard CMOS-SOI processes. The proposed sensor features a versatile mosaic structure with a series and/or parallel connection of 128 60μm x 60μm pixels. Two versions of the sensor are presented and characterized, with the most performing version surpassing other state-of-the-art thermopile sensors in responsivity. The application of the most performing sensor as a proximity and motion detector is also verified through measurements.
2022 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS (ISCAS 22)
(2022)
Proceedings Paper
Computer Science, Hardware & Architecture
Antonio Aprile et al.
Summary: This paper presents a NPN-based Temperature-to-Digital Converter (TDC) designed for compensating the thermal drift of MEMS devices. The circuit, utilizing a fully current-mode processing architecture, is fabricated in a standard 180-nm CMOS technology, with a compact silicon area and low energy consumption. The TDC demonstrates high resolution and low inaccuracy.
ESSCIRC 2022- IEEE 48TH EUROPEAN SOLID STATE CIRCUITS CONFERENCE (ESSCIRC)
(2022)
Article
Engineering, Electrical & Electronic
Tanya Blank et al.
Summary: This paper introduces a novel non-imaging digital passive Infra-Red (PIR) sensing system using a CMOS-SOI-MEMS transistor as the thermal sensor, which surpasses traditional pyroelectric sensors and thermopiles in performance. Manufactured by nano-fabrication methods in standard FABs, the mosaic sensors exhibit enhanced performance and robust manufacturing on wafer level processing and vacuum packaging. Mirror optics replaces Fresnel plastic lenses to provide enhanced performance at low-cost.
IEEE SENSORS JOURNAL
(2021)
Review
Chemistry, Analytical
Elisabetta Moisello et al.
Summary: The global spread of COVID-19 has led to the adoption of new lifestyle habits such as social distancing and temperature checks. Technology, especially thermal sensors, has played a vital role in supporting these changes, with its ability to perform contactless measurements and automate systems, thus reducing the need for physical touch.
Proceedings Paper
Engineering, Electrical & Electronic
Elisabetta Moisello et al.
Summary: TMOS is a novel type of uncooled thermal sensor with high temperature sensitivity and internal gain advantages. Its sensing performance depends on the transistor operating region and configuration. It has been found that the voltage-mode readout configuration maximizes the sensor performance.
2021 IEEE 12TH LATIN AMERICA SYMPOSIUM ON CIRCUITS AND SYSTEM (LASCAS)
(2021)
Article
Engineering, Electrical & Electronic
Yunqian He et al.
IEEE ELECTRON DEVICE LETTERS
(2020)
Article
Engineering, Electrical & Electronic
Bumjin Park et al.
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS
(2020)
Article
Engineering, Electrical & Electronic
Yunqian He et al.
IEEE ELECTRON DEVICE LETTERS
(2020)
Article
Engineering, Electrical & Electronic
Wei Li et al.
IEEE TRANSACTIONS ON ELECTRON DEVICES
(2019)
Article
Engineering, Electrical & Electronic
Elisabetta Moisello et al.
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS
(2019)
Article
Engineering, Electrical & Electronic
Alex Zviagintsev et al.
IEEE TRANSACTIONS ON ELECTRON DEVICES
(2018)
Article
Engineering, Electrical & Electronic
Meisam Heidarpour Roshan et al.
IEEE JOURNAL OF SOLID-STATE CIRCUITS
(2017)
Article
Engineering, Electrical & Electronic
Alex Zviagintsev et al.
IEEE TRANSACTIONS ON ELECTRON DEVICES
(2017)