Bernhard Boser (Advisor)

MicroElectroMechanical Devices and Fabrication Technologies for Radio-Frequency Analog Signal Processing

Darrin Young
Bernhard E. Boser
Robert G. Meyer
Albert P. Pisano
1999
The proliferation of wireless services creates a pressing need for compact and low cost RF transceivers. Modern sub-micron technologies provide the active components needed for miniaturization but fail to deliver high quality passives needed in ...

Darrin Young

Alumni
Electrical Engineering and Computer Sciences
Professor Bernhard E. Boser (Advisor)
Ph.D. 1999

Integrated Micromechanical Resonant Sensors for Inertial Measurement Systems

Ashwin Seshia
Roger T. Howe
Bernhard E. Boser
Kristofer S.J. Pister
Roberto Horowitz
2002
Thumbnail-sized inertial measurement systems based on Micro Electro Mechanical Systems (MEMS) technology have been perceived as a breakthrough in the field of inertial navigation. However, even as micromechanical accelerometers have seen widespread commercialization, vibratory micromechanical gyroscopes...

Vladimir Petkov

Alumni
Electrical Engineering and Computer Sciences
Professor Bernhard E. Boser (Advisor)
Ph.D. 2004

High-Order ΣΔ Interface for Micromachined Inertial Sensors

Vladimir Petkov
Bernhard E. Boser
Roger T. Howe
Roberto Horowitz
2004
Emerging automotive and consumer applications such as vehicle stability control, GPS backup and many others are generating a growing demand for inertial sensors with an increasing range of functionality including digital interfacing, built-in self-test, calibration and temperature compensation. Among various techniques for implementing inertial sensor interfaces, Σ∆ modulation provides the benefits of intrinsically linear, two-level force-feedback and analog-to-digital conversion....

CMOS Imaging Receivers for Free-Space Optical Communication

Brian Leibowitz
Kristofer S. J. Pister
Bernhard E. Boser
Andrew Packard
2004
Free-space optical communication is an attractive alternative to radio communication for low power, long-range communication between small devices, primarily because utilization of shorter radiation wavelengths allows for more directional transceivers. At the transmitter, increased directionality allows for reduced transmission power because a given receiver will collect a larger fraction of the radiated energy. At the receiver, increased directionality allows for greater...

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, ...

Kenneth Wojciechowski

Alumni
Electrical Engineering and Computer Sciences
Professor Bernhard E. Boser (Advisor)
Ph.D. 2005

Baris Cagdaser

Alumni
Electrical Engineering and Computer Sciences
Professor Bernhard E. Boser (Advisor)
Ph.D. 2005

Readout Techniques for High-Q Micromachined Vibratory Rate Gyroscopes

Chinwuba Ezekwe
Bernhard E. Boser
Kristofer S.J. Pister
Roberto Horowitz
2007
Inexpensive MEMS gyroscopes are enabling a wide range of automotive and consumer applications. Examples include image stabilization in cameras, game consoles, and improving vehicle handling on challenging terrain. Many of these applications imposevery stringent requirements on power dissipation. For continued expansion into new applications it is imperative to reduce power consumption of present devices by anorder-of-magnitude. Gyroscopes infer angular rate from measuring the Coriolis force exerted on a...