Large-Scale Acquisition of Large-Area Sensors Using an Array of Frequency-Hopping ZnO Thin-Film-Transistor Oscillators

📋 论文概要

本文提出一种基于频率跳变ZnO薄膜晶体管振荡器阵列的大面积传感器采集系统，通过减少大面积电子（LAE）与硅CMOS之间的接口数量，实现了大规模压力传感器的高效读取。该系统克服了传统有源矩阵仅能平方根减少接口的限制，显著提升了传感器集成密度。

💡 主要创新点

• 采用频率跳变技术实现传感器阵列的时分复用，大幅减少LAE与CMOS之间的接口数量，突破传统有源矩阵的平方根限制。
• 利用ZnO薄膜晶体管振荡器实现大面积传感器集成，兼容柔性基底，适用于低成本、大面积的传感应用。
• 提出混合系统架构，结合LAE传感和CMOS计算，优化了系统性能和功耗。

🏷 关键词

📄 原文摘要

James C. Sturm, Naveen Verma Princeton University, Princeton, NJ Hybrid systems combine Large-Area Electronics (LAE) and silicon CMOS ICs for sensing and computation, respectively. Such systems are limited in number of sensors by the interfaces required between LAE and CMOS. One solution is active matrices; however, these are best suited to highly-regular sensor arrangements due to many speed/power-limiting data lines, and ultimately provide only a squareroot reduction in the number of interfaces. This paper presents a large-area pressure-sensing system that achieves a much greater reduction in the number of interfaces from distributed LAE sensors to CMOS via an array of frequencyhopping, injection-locked, ZnO-TFT digitally-controlled oscillators (DCOs). Figure 15.1.1 shows the system architecture. Each of the M LAE sensors has its own DCO, and all DCOs (via capacitors CC) combine into a single differential signal,

👥 作者与机构

Yasmin Afsar, Tiffany Moy, Nicholas Brady, Sigurd Wagner,