Organic Current Mirror PUF for Improved Stability Against Device Aging

Qin, Zhaoxing; Shintani, Michihiro; Kuribara, Kazunori; Ogasahara, Yasuhiro; Satō, Takashi

doi:10.1109/jsen.2020.2986077

Cited by 14 publications

(7 citation statements)

References 44 publications

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“…Authentication is often enabled by means of alignment markers, which nonetheless always introduce a certain degree of mismatch between the original patterns and subsequent readouts. Small alignment deviations in fact lead to the input and the output images never being exactly the same and being prone to changes over time and mechanical/chemical damage. , These limitations have led to multiple efforts to optimize the robustness and stability of the available PUF systems by encapsulation, improved system design, , material development, response signal amplification, , and most commonly, improved evaluation methods. , …”

Section: Introductionmentioning

confidence: 99%

“…Small alignment deviations in fact lead to the input and the output images never being exactly the same and being prone to changes over time and mechanical/ chemical damage. 23,24 These limitations have led to multiple efforts to optimize the robustness and stability of the available PUF systems by encapsulation, 25 improved system design, 26,27 This article is licensed under CC-BY 4 material development, 28 response signal amplification, 29,30 and most commonly, improved evaluation methods. 4,29 In this work, instead of using a subset image from a larger pattern, we create a pixelated system of clearly distinguishable single colloids.…”

Section: Introductionmentioning

confidence: 99%

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Pixelated Physical Unclonable Functions through Capillarity-Assisted Particle Assembly

Meijs,

Yun,

Fandre

et al. 2023

ACS Appl. Mater. Interfaces

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Recent years have shown the need for trustworthy, unclonable, and durable tokens as proof of authenticity for a large variety of products to combat the economic cost of counterfeits. An excellent solution is physical unclonable functions (PUFs), which are intrinsically random objects that cannot be recreated, even if illegitimate manufacturers have access to the same methods. We propose a robust and simple way to make pixelated PUFs through the deposition of a random mixture of fluorescent colloids in a predetermined lattice using capillarity-assisted particle assembly. As the encoding capacity scales exponentially with the number of deposited particles, we can easily achieve encoding capacities above 10 700 for sub millimeter scale samples, where the pixelated nature of the PUFs allows for easy and trustworthy readout. Our method allows for the PUFs to be transferred to, and embedded in, a range of transparent materials to protect them from environmental challenges, leading to improved stability and robustness and allowing their implementation for a large number of different applications.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Pixelated Physical Unclonable Functions through Capillarity-Assisted Particle Assembly

Meijs,

Yun,

Fandre

et al. 2023

ACS Appl. Mater. Interfaces

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“…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

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<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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Organic Current Mirror PUF for Improved Stability Against Device Aging

Cited by 14 publications

References 44 publications

Pixelated Physical Unclonable Functions through Capillarity-Assisted Particle Assembly

Pixelated Physical Unclonable Functions through Capillarity-Assisted Particle Assembly

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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