Liwei Lin (Advisor)

Research Advised by Professor Liwei Lin

Lin Group:  List of Projects | List of Researchers

Andrew Cao

Alumni
Mechanical Engineering
Professor Liwei Lin (Advisor)
Ph.D. 2004

Microfluidic Accumulator Driven by Capillary Forces

Eric Hobbs
Albert P. Pisano
Liwei Lin
Roya Maboudian
2003
Four million people died in 2002 due to diabetes related conditions[1]. Diabetes is the leading cause of adult blindness, end-stage kidney disease and amputations as a result of diabetic neuropathy. People with diabetes are two to four times more likely to have coronary heart disease and stroke than people who do not suffer from the disease. ...

Low-Power Portable Microfluidic Delivery System

Eric Hobbs
Albert P. Pisano
Liwei Lin
Daniel Fletcher
2004
Future, portable, continuously-monitoring micro-total-analysis-systems are likely to require low-power portable microfluidic delivery systems allowing the actuation of fluids with a minimum expenditure of electrical energy. One method to accomplish this is to utilize a micro-osmotic pum...

Lateral Etching of Silicon: The Hole-in-the-Wall Fabrication Processes

Jeremy Frank
Albert P. Pisano
Liwei Lin
Lydia L. Sohn
2004

This project details three derivatives of a fabrication process that gives the MEMS engineer increased freedom when designing planar microfluidic systems. This new family of processes was developed to laterally etch microfluidic channels in silicon and can be used to place an orifice (the “hole-in-the-wall”) in the center of the sidewall of a channel, Fig. 1.1. This creates improved valve seat geometry and has been used to create planar silicon microvalves that seal...

Planar Microfluidic Devices for Control of Pressure-Driven Flow

Jeremy Frank
Albert. P. Pisano
Liwei Lin
Daniel Fletcher
2004
Active and passive microfluidic valves, thermopneumatic pumps and low-power dosing systems have been fabricated using a new family of fabrication processes. These new processes are capable of producing integrated planar microfluidic systems with a one-thousand-fold increase in flow control over existing planar systems. The three ...

Electronics for Resonant Sensors

Kenneth Wojciechowski
Bernhard E. Boser
Liwei Lin
Roger T. Howe
2005
Resonant force or displacement sensing based on observing the change in resonant frequency is attractive because of its relative insensitivity to 1/f noise, high resolution and bandwidth, and “quasi-digital” output. Applications include inertial and strain sensors, biosensors based on mass-loading, and atomic force microscopy. The main contributions of this dissertation are Design of low-noise high fidelity MEMS resonators for sensing, ...

Pick and Place Silicon on Insulator Microassembly

Matthew Last
Kristofer S.J. Pister
Ming C. Wu
Liwei Lin
2005
Deep reactive ion etching into Silicon on Insulator (SOI) wafers is a popular method of fabricating high-performance MEMS devices. These include electrostatic and thermal actuators, flexures that guide very precise motion, and ultra-flat and smooth reflectors to make micro-mirrors. An important limitation of SOI-based MEMS is that it is not easy to achieve a large range of out-of-plane motion without a complex fabrication process. This is because of the difficulty in...

Kien-Bang Lam

Alumni
Mechanical Engineering
Professor Liwei Lin (Advisor)
Ph.D. 2005

Ongi Englander

Alumni
Mechanical Engineering
Professor Liwei Lin (Advisor)
Ph.D. 2005

Localized Synthesis, Assembly and Application of Carbon Nanotubes

Dane Christensen
Liwei Lin
Albert P. Pisano
Alexander Zettl
2005
This report describes the localized synthesis, orientation, assembly and application of carbon nanotubes. Synthesis by chemical vapor deposition is activated by means of resistively heating a MEMS structure in a room temperature reaction chamber. Catalyst nanoparticles, created by heating a thin film of NiFe (80%-20% by...