An Architecture for Large-Area Sensor Acquisition Using Frequency-Hopping ZnO TFT DCOs

Afsar, Yasmin; Moy, Tiffany; Brady, Nicholas; Wagner, S.; Sturm, James C.; Verma, Naveen

doi:10.1109/jssc.2017.2740383

Cited by 12 publications

(7 citation statements)

References 17 publications

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“…With the frequency hopping method, it can be shown that this number increases combinatorically, from 32 to ~350. With more digital controls signals, the factor of increase is substantially larger [16].…”

Section: Analog Oscillators For Wired and Wireless Data And Power Tra...mentioning

confidence: 99%

“…Along with HF thin film diodes [13], this enables near field coupling of signals and power between adjacent large area sheets [14,15] and sending sensor data "off-sheet" by wireless methods [5]. With sufficient bandwidth, frequency-hopping (spread spectrum) methods can be used to send far more data for a fixed number of connections than with a conventional active matrix approach [16].…”

Section: Introductionmentioning

confidence: 99%

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(Keynote) Machine Learning and High-Speed Circuitry in Thin Film Transistors for Sensor Interfacing in Hybrid Large-Area Electronic Systems

et al. 2019

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The advent of flexible substrates with thin film transistors (TFTs) over large areas (meters) makes large-area electronics (LAE) an attractive platform for integrating very large numbers of sensors onto surfaces over large areas. While TFT’s may directly interface to sensors and may be used for sensor addressing, to realistically communicate with the outside world, IC’s will probably be bonded onto the “sensor sheets” to create a “hybrid” LAE/IC system. This paper examines novel architectures to minimize the number of physical interfaces to the IC, beyond the typical TFT-based active-matrix approach. Approaches demonstrated include (i) high-frequency TFT-based analog oscillators, and (ii) implementing elements of machine learning into TFT circuitry, so a higher-level information is sent to the IC’s, thus requiring fewer physical connections.

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Section: Analog Oscillators For Wired and Wireless Data And Power Tra...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

(Keynote) Machine Learning and High-Speed Circuitry in Thin Film Transistors for Sensor Interfacing in Hybrid Large-Area Electronic Systems

et al. 2019

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show abstract

“…1(b)). Organic-TFT-based integrated circuits reported to date include data converters [1], [2], DC-DC converters [3], radio-frequency identification (RFID) tags [4], [5], sensors and sensor interfaces [6]- [11], static random access memories (SRAM) [12], [13], hardware security [14], Internet of Things applications [15], and biomedical sensors and signal front-ends [16]- [19].…”

Section: Introductionmentioning

confidence: 99%

Source-Degenerated Schmitt-Trigger-Based High-Performance Digital Logic for Flexible Organic Thin-Film Transistor Technologies

Seifaei¹,

schillinger²,

Prabhu³

et al. 2023

Preprint

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<p>A source-degenerated Schmitt-trigger logic is proposed. Based on this architecture, basic logic-gate architectures, ring oscillators, and edge-sensitive D-type flip-flops were fabricated using low-voltage p-channel organic thin-film transistors and integrated thin-film carbon resistors on flexible polymeric substrates. Mathematical analysis of this logic architecture indicates improved stability against charge-carrier-mobility degradation. A small-signal gain of 83 dB and a noise margin of 92 % of half the supply voltage have been measured. Owing to the intrinsic positive-feedback loop of the source-degenerated Schmitt-trigger logic, the design of the D-flip-flop enables a substantially smaller footprint and a considerably lower energy dissipation compared to previously reported unipolar organic-TFT-based D-flip-flop architectures. </p>

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“…1(b)). Organic-TFT-based integrated circuits that have been reported to date include data converters [1], [2], DC-DC converters [3], radio-frequency identification (RFID) tags [4], [5], sensors and sensor interfaces [6]- [11], static random access memories (SRAM) [12], [13], hardware security [14], Internet of Things applications [15], and biomedical sensors and signal front-ends [16]- [19]. Masoud The fabrication process of p-channel organic TFTs with adequate performance and stability has advanced quite far.…”

Section: Introductionmentioning

confidence: 99%

Source-Degenerated Schmitt-Trigger-Based High-Performance Digital Logic for Flexible Organic Thin-Film Transistor Technologies

Seifaei¹,

schillinger²,

Prabhu³

et al. 2023

Preprint

View full text Add to dashboard Cite

<p>A resistive Schmitt-trigger (RST) logic is proposed. Based on this architecture, a digital cell library was designed, and basic logic-gate architectures, ring oscillators, edge-sensitive D-type flip-flops and a pad-driver cell were fabricated using low-voltage p-channel organic thin-film transistors (TFT) and integrated thin-film carbon resistors on flexible polymeric substrates. Theoretical analysis and experimental characterization of the RST logic architecture indicate improved stability against device-parameter mismatch and charge-carrier-mobility degradation. A small-signal gain of 83 dB and a noise margin of 92 % of half the supply voltage have been measured. Owing to the intrinsic positive-feedback loop of the RST logic, the design of the D-flip-flop enables a substantially smaller footprint and a considerably lower energy dissipation compared to previously reported unipolar organic-TFT-based D-flip-flops.</p>

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An Architecture for Large-Area Sensor Acquisition Using Frequency-Hopping ZnO TFT DCOs

Cited by 12 publications

References 17 publications

(Keynote) Machine Learning and High-Speed Circuitry in Thin Film Transistors for Sensor Interfacing in Hybrid Large-Area Electronic Systems

(Keynote) Machine Learning and High-Speed Circuitry in Thin Film Transistors for Sensor Interfacing in Hybrid Large-Area Electronic Systems

Source-Degenerated Schmitt-Trigger-Based High-Performance Digital Logic for Flexible Organic Thin-Film Transistor Technologies

Source-Degenerated Schmitt-Trigger-Based High-Performance Digital Logic for Flexible Organic Thin-Film Transistor Technologies

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