Kristofer S.J. Pister (Advisor)

Research Advised by Professor Kristofer S.J. Pister

Pister Group:  List of Projects | List of Researchers

Brian Leibowitz

Alumni
Electrical Engineering and Computer Sciences
Professor Kristofer S.J. Pister (Advisor)
Ph.D. 2004

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...

Evolutionary Synthesis of MEMS

Raffi Kamalian
Alice M. Agogino
Albert P. Pisano
Kristofer S.J. Pister
2004
An evolutionary synthesis framework for Microelectrical Mechanical System (MEMS) design is presented. MEMS based technologies promise to bring a revolution to the world we live in just as the integrated circuit has done in recent decades; better design tools are critical to this revolution. More complex design objectives and constraints demand automation to generate successful devices. Genetic algorithms and other stochastic evolutionary synthesis approaches are used to design surface micromachined MEMS using...

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...

Matthew Last

Alumni
Electrical Engineering and Computer Sciences
Professor Kristofer S.J. Pister (Advisor)
Ph.D. 2005

Barbara Hohlt

Alumni
Electrical Engineering and Computer Sciences
Professor Kristofer S.J. Pister (Advisor)
Ph.D. 2005

Transistors and Synapses: Robust, Low Power Analog Circuits in CMOS Radios and the Rabbit Retina

Alyosha Molnar
Kristofer S.J. Pister
2007

Modern silicon integrated circuits and vertebrate nervous systems are the two of the most compact, complex information processing systems presently known. Within these two classes of system, most information processing is handled in discrete (ie digital) form, but analog components appear in both systems as well. In silicon, wireless communication circuits are typically implemented using analog signal processing. In the central nervous system, the retina plays a similar role of interfacing with the physical world, and also employs analog circuitry. In both cases the primary problem...

Alyosha Molnar

Alumni
Electrical Engineering and Computer Sciences
Professor Kristofer S.J. Pister (Advisor)
Ph.D. 2007

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...

Low Energy RF Transceiver Design

Benjamin Cook
Kristofer S.J. Pister
2007

The average consumer has relied upon bidirectional RF communication for phone and internet connectivity for years. These devices are either plugged in to wall outlets or rely on large batteries that must be recharged frequently. A new generation of deeply embedded, short-range wireless applications is emerging, fueled by the extreme reductions in cost and power required for sensing and computation afforded by CMOS and MEMS process advancement. The power consumption of wireless communication links, on the other hand, has not scaled down so dramatically. Short range wireless protocols...