SBIR Phase I: Resonant Tunneling Strain Sensor

SBIR 第一阶段：谐振隧道应变传感器

• 批准号: 9560083
• 负责人: Vladimir Sokolov
• 金额: $ 7.5万
• 依托单位: TLC Precision Wafer Technology
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1996
• 资助国家: 美国
• 起止时间: 1996-10-01 至 1997-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9560083&HistoricalAwards=false
• 关键词: SBIR; Phase; Resonant; Tunneling; Strain

9560083 Sokolov This Small Business Innovation Research (SBIR) Phase I project will explore a newly discovered characteristic of resonant tunneling diodes. The University of Minnesota has been found a novel and strong stress dependence in the current-voltage characteristics of III-V semiconductor double barrier resonant tunneling devices. The effects are attributed to piezoelectric properties of the materials, and the stress dependence is magnified by a strongly nonlinear dependence of the resonant tunneling current on the applied bias. Preliminary estimates of the gauge factor, which is a strain gauge figure of merit, approach 1000, which is roughly five times the sensitivity of silicon-based piezoelectric sensors in common industrial use. Phase I will assess a novel resonant tunneling strain sensor relative to current strain sensor technology. With consulting support from the University of Minnesota, the company will model the current-voltage characteristics, model possible modes of operation, and study potential packaging approaches and their effects on performance. Commercial applications of resonant tunneling strain sensor technology are expected to be large and numerous in miniaturized, highly sensiive sensors for both industrial and military purposes. Applications include strain sensors, acoustic sensors, pressure sensors, accelerometers, seismic sensors, and various varioussensors capable of remote operation.

9560083索科洛夫这个小型企业创新研究第一阶段项目将探索共振隧道二极管的一个新发现的特性。美国明尼苏达大学在III-V半导体双势垒共振隧穿器件的电流-电压特性中发现了一种新颖而强烈的应力依赖关系。这种效应归因于材料的压电性，并且共振隧穿电流对外加偏压的强烈非线性依赖放大了应力依赖关系。量规系数的初步估计接近1000，这大约是工业上常用的硅基压电传感器灵敏度的五倍。第一阶段将评估与当前应变传感器技术相关的新型共振隧穿应变传感器。在明尼苏达大学的咨询支持下，该公司将对电流-电压特性进行建模，对可能的操作模式进行建模，并研究潜在的封装方法及其对性能的影响。共振隧穿应变传感器技术在工业和军事用途的小型化、高灵敏度传感器方面的商业应用预计将是巨大的和众多的。应用包括应变传感器、声学传感器、压力传感器、加速度计、地震传感器以及各种可远程操作的传感器。