Inkjet-Printed EGFET-Based Physical Unclonable Function-Design, Evaluation, and Fabrication
Inkjet-Printed EGFET-Based Physical Unclonable Function-Design, Evaluation, and Fabrication
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DOI：
10.1109/tvlsi.2018.2866188
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发表时间：
2018-12-01
影响因子：
2.8
通讯作者：
Tahoori, Mehdi B.
中科院分区：
文献类型：
--
作者：
Erozan, Ahmet Turan;Marques, Gabriel Cadilha;Tahoori, Mehdi B.
印刷电子（PE）是一种有前途的技术，可提供机械灵活性和低成本制造，是智能传感器、可穿戴设备和物联网等新兴应用的关键推动因素。为了在未来使用印刷电池或印刷能量收集器，基于无机材料的电解质门控场效应晶体管（EGFET）使印刷电路需要小电源电压和低功率。由于这些应用程序需要安全的通信和/或身份验证，因此必须将用于密钥和身份识别目的的安全原语嵌入到应用程序中。物理不可克隆函数（PUF）已被广泛采用以提供安全密钥。在本文中，我们提出了设计，模拟，制造和测量的PUF的基础上EGFET使用无机喷墨PE。一个全面的框架，包括蒙特卡罗模拟校准真实的设备测量，开发。此外，还提出了多位PE-PUF设计来优化面积使用。仿真结果表明，PE-PUF具有理想的唯一性（50.1%）和良好的可靠性（89%）。此外，所提出的多比特PE-PUF减少了约30%的面积使用。所提出的PE-PUF的制造和实验结果证实，PE-PUF可以可靠地工作低至0.5 V，因此，它是一个显着的候选人，用于低功耗应用。
Printed electronics (PE) is a promising technology that provides mechanical flexibility and low-cost fabrication and the key enabler for emerging applications, such as smart sensors, wearables, and Internet of Things. To use printed batteries or printed energy harvesters in the future, electrolyte-gated field-effect transistors (EGFETs) based on inorganic materials enable printed circuits requiring small supply voltage and low power. Since these applications need secure communication and/or authentication, it is imperative to embed security primitives for cryptographic key and identification purposes into the applications. Physical unclonable functions (PUFs) have been adopted widely to provide secure keys. In this paper, we present the design, simulation, fabrication, and measurements of a PUF based on EGFETs using inorganic inkjet PE. A comprehensive framework, including Monte Carlo simulations calibrated on real device measurements, is developed. Moreover, a multibit PE-PUF design is proposed to optimize area usage. Our simulation results show that the PE-PUF has ideal uniqueness (50.1%) and good reliability (89%). In addition, the proposed multibit PE-PUF reduces the area usage around 30%. The proposed PE-PUF was fabricated and the experimental results confirm that the PE-PUF can operate reliably as low as 0.5 V, and hence, it is a remarkable candidate to be utilized in low-power applications.