Self-Powered Timekeeping and Synchronization Using Fowler-Nordheim Tunneling-Based Floating-Gate Integrators
Self-Powered Timekeeping and Synchronization Using Fowler-Nordheim Tunneling-Based Floating-Gate Integrators
复制标题
DOI：
10.1109/ted.2016.2645379
复制
发表时间：
2017-03-01
影响因子：
3.1
通讯作者：
Chakrabartty, Shantanu
中科院分区：
文献类型：
--
作者：
Zhou, Liang;Chakrabartty, Shantanu
自供电定时器提供了一种实现两个无源设备（例如，RF标签、信用卡/门禁卡和拇指驱动器），而无需任何外部电源或时钟。因此，计时器可用于实现动态SecureID类型的身份验证，其中涉及需要定期生成和同步的随机密钥和令牌。我们报道了一种新型的固态自供电定时器，它利用了Fowler-Nordheim量子输运到浮栅上的电子隧穿物理中的自补偿机制。所提出的设备已制造使用标准CMOS工艺，并证明是可操作的持续时间超过三年，使用外推研究。还发现所制造的器件对器件失配非常鲁棒，因此，所提出的自供电定时器可以以大于0.5%的精度相对于彼此同步。
Self-powered timers provide a mechanism to achieve temporal synchronization between two passive devices (for e.g., RF tags, credit/access cards, and thumb drives) without the need for any external powering or clocks. As a result, the timers could be used to implement dynamic SecureID type authentication involving random keys and tokens that need to be periodically generated and synchronized. We report a novel solid-state self-powered timer, which exploits a self-compensating mechanism in the physics of Fowler-Nordheim quantum transport of electrons tunneling onto a floating gate. The proposed devices have been fabricated using standard CMOS processing and are demonstrated to be operational for durations greater than three years using extrapolation studies. The fabricated devices were also found to be extremely robust to device mismatch and as a result of which, the proposed self-powered timers can be synchronized with respect to each other with an accuracy greater than 0.5%.