Wisconsin Alumni Research Foundation

Technology

Micromachined Scanning Thermal Probe

Scanning thermal probes hold promise for many applications, including high-resolution temperature mapping (e.g., for ULSI circuit diagnostics), topographical mapping, photothermal absorption spectrosc...
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Yogesh Gianchandani, Mo-Huang Li, Julius Wu | P01026US

Technology

Strain-Tunable Light Emitting Diodes Using Germanium

Germanium (Ge), a group-IV semiconductor material, is crucial to many established and potential technologies. In optoelectronics, Ge has been used as a photodetector material for on-chip data distribu...
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Max Lagally, Jose Sanchez Perez | P140041US01

Technology

An Enhanced Method of Embedding Thin Film Sensors

Surface mounted and exposed sensors are used in objects commonly found in a modern society that range from simple temperature monitors to complex airbag ejection systems. But sensors located on the su...
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Xiaochun Li, Xudong Cheng, Arindom Datta | P07193US

Technology

Dielectric Sensor for Stress and Strain Detection

Load bearing structures experience stresses and/or strains that deform the material from which they are made. Regardless of a building component’s size, exposure to or tolerance for stress and s...
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Yuri Shkel, Ho Young Lee, Yiyan Peng | P08252US

Technology

Ultra-Efficient Continuous Monitoring of Sensors

Tracking emissions, sensing earthquakes and monitoring patient brain waves are just a few of the applications that rely on changing, real-world information. In typical systems, sensors pass on raw dat...
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Mikko Lipasti, Atif Hashmi, Andrew Nere, Giulio Tononi | P130049US01

Technology

Ultrasonic Welding with Real-Time Quality Control

In ultrasonic welding, work pieces are clamped between a horn and anvil and then joined using high-frequency vibration energy. Friction and heat between the surfaces causes them to soften and meld tog...
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Xiaochun Li, Hongseok Choi, Hang Li, Wayne Cai, Jeff Abell, Jingzhou Zhao | P120081US01

Technology

Micromachined Shock Sensor

Shock sensors are accelerometers that respond to specific levels of acceleration. The design usually consists of a proof mass and a flexible suspension. At a preselected level of acceleration, th...
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Yogesh Gianchandani, Shamus McNamara | P01336US

Technology

Low-Power Liquid Crystal Switching Mechanism

Liquid crystal displays (LCDs) are found in a wide range of consumer products, including laptop computers, digital clocks, microwave ovens and CD players. But LCDs are currently unsuitable for certain...
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Nicholas Abbott, Yan-Yeung Luk | P02034US

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