Wisconsin Alumni Research Foundation

Technology

Micro-Electro-Discharge Machining Method and Device

Micro-electro-discharge machining (micro-EDM) is a microfabrication technique involving the serial discharge of electrical pulses between a microelectrode and a work piece, with a simple RC circuit co...
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Yogesh Gianchandani, Kenichi Takahata | P01335US

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

Microscope Probe Having an Ultra-Tall Tip

Atomically sharp micro-fabricated tips are used in atomic force microscopy (AFM) for scanning near-field microwave microscopy (SNMM) to create an image of the tiny topography on or under a surface. Th...
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Daniel van der Weide, Yaqiang Wang | P06244US

Technology

Smoother Surfaces with Pulsed Laser Polishing

Pulsed laser polishing (PLP) helps smooth metal and other material. The technique employs lasers to irradiate a surface, melting small areas with each pulse. In these molten areas, rough surface protr...
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Frank Pfefferkorn, Xiaochun Li, Neil Duffie, Chao Ma, Venkata Madhukanth Vadali | P130168US01

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

Patch Clamp Providing On-Chip Thermal Control

Approximately half of all diseases affect the function of ion channels in cell membranes. Testing the flow of ions and molecules through these membranes clearly is vital to drug discovery and research...
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Robert Blick | P110325US01

Technology

Atmospheric Growth of Vertically Oriented Graphene

Nano-carbon based hybrid materials possess extraordinary properties and show great promise for improved efficiency and sensitivity in a wide range of applications including capacitors, sensors, transp...
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Junhong Chen, Kehan Yu, Zheng Bo, Ganhua Lu | T130004US02

Technology

Micromechanical Actuator Device

Electrothermal actuators have been used in microelectromechanical systems (MEMS) to produce rectilinear displacement. These actuators possess a number of advantages, including high output forces, low ...
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Yogesh Gianchandani, Joel Hetrick, Larry Li-Yang Chu | P01337US

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