Bernhard Boser (Advisor)

Turgut Aytur

Alumni
Electrical Engineering and Computer Sciences
Professor Bernhard E. Boser (Advisor)
Ph.D. 2007

Behnam Behroozpour

Alumni
Electrical Engineering and Computer Sciences
Professor Bernhard E. Boser (Advisor)
Ph.D. 2016

Efthymios Papageorgiou

Alumni
Electrical Engineering and Computer Sciences
Professor Bernhard E. Boser (Advisor)
Ph.D. 2019

Chip-scale Lidar

Behnam Behroozpour
Bernhard E. Boser
Ming C. Wu
Liwei Lin
2016

The superiority of lidar compared to radio-frequency and ultrasonic solutions in terms of depth and lateral resolution has been known for decades. In recent years, both application pull such as 3D vision for robotics, rapid prototyping, self-driving cars, and medical diagnostics, as well as technology developments such as integrated optics and tunable lasers have resulted in new activities. Pulsed, amplitude-modulated continuous-wave (AMCW), and frequency-modulated continuous-wave (FMCW) lidars can all be used for ranging. The latter option enables excellent depth resolution at the...

A CMOS Biosensor for Infectious Disease Detection

Turgut Aytur
Bernhard E. Boser
Kristofer S.J. Pister
2007

This dissertation describes the design and implementation of an immunoassay platform based on micron-scale magnetic beads. We target the diagnosis of infectious diseases in developing countries, where small, inexpensive, and automated tests are required. Conventional sensor technologies, such as Giant Magneto-Resistors (GMRs), have excellent sensitivity but are expensive and difficult to integrate with other circuitry. The system presented here is built around a CMOS sensor chip and uses standard manufacturing techniques present in the electronics industry. CMOS technology can...

BEB6: Electrostatic Actuator Design for a Digital Output Gyroscope

Joseph Seeger
2003

This research investigates the dynamics, design, and control of gap-closing, electrostatic actuators. Because of nonlinearity, gap-closing actuators can give rise to complicated behavior, such as instability, frequency tuning, and parametric resonance. We have demonstrated charge control circuits that stabilize gap-closing actuators and increase the range of motion from 33% of the gap to more than 90% of the gap. We have designed a gyroscope proof-mass with parallel-plate actuators for low voltage oscillation in air with frequency tuning. We have identified parasitic effects, such as...

BEB13: Background Calibration for Low-Power High-Performance A/D Conversion

Boris Murmann
2003

Our project aims to develop and investigate on digital post processing methods and circuit techniques that allow efficient, low power implementation of high performance Analog-to-Digital Converters (ADC) in fine line technologies. The research focuses on a continuous background self-calibration technique applied to a high-speed pipelined ADC topology.

Project end date: 01/25/04

BEB20: Phase Noise Considerations of a MEMS Oscillator

Manu Seth
2004

Oscillators based on MEMS resonators have been developed but their performance has not been thoroughly investigated. Phase noise has been measured in numerous oscillator designs, but it has not been determined whether these oscillators can meet the specifications of practical applications. This project will attempt to determine some of the limits of MEMS based oscillators in terms of phase noise. I will study the feasibility of using MEMS oscillators as the frequency reference in phase-locked loops. I will then design oscillator circuits meant to minimize noise and meet standard PLL...

BEB7: Electronic Interface for Micromachined Gyroscope Sensors

Vladimir Petkov
2004

The goal of this project is to develop a high-resolution closed-loop sense interface for micromachined gyroscope sensors.

Project end date: 08/18/04

BEB21: Background calibration techniques for digitally assisted ADC

Anshi Liang
2004

Develop new background calibration techniques for low power digitally assisted Analog-to-Digital Converters (ADCs). The goal is achieve significant savings in convergence time. A proof-of-concept FPGA realization calibration module will be built for a 12-bit, 75-MS/s demonstration prototype previously developed by Boris Murmann.

Project end date: 01/20/05