Publications

Inductor Optimization for Passive Wireless Implantable Capacitive Sensors

Neel Shah
Shuvo Roy
Albert P. Pisano
2011

There are many clinical scenarios in which continuous monitoring of vital physiological signs is desired. Pressure monitoring in particular has diverse uses in the body. Specific application areas include checking arterial blood pressure for detection of changing heart conditions, monitoring intracranial pressure for stroke victims, tracking post-surgery pressure profiles in spinal columns to determine treatment efficacy, and recording subtle changes in intraocular pressure to...

Immunosensor: A CMOS/MEMS-Based Protein Sensor

Bernhard E. Boser
Richard M. White
P. Robert Beatty
Eva Harris
2001

Millions of people each year die of infectious diseases. The need for rapid and efficient diagnostics is extremely prevalent. Current diagnostic tools are found only in the laboratories of well-equipped hospitals, research labs and clinics. Simple, common tests are becoming available...

Integrated Surface Micromachined Frame Microgyroscopes

Moorthi Palaniapan
Roger T. Howe
Albert P. Pisano
Roberto Horowitz
2002
In this work, two different integrated surface-micromachined z-axis vibratory rate gyroscopes are evaluated. Frame microgyroscopes using 'Inside Sense Outside Drive' suspension design were proposed and compared with 'Inside Drive Outside Sense' design. In the 'Inside Sense Outside Drive' frame design, the outer mass (...

Integrated MEMS Cavity Optomechanical Oscillators for Wireless and Optical Communications

Turker Beyazoglu
Clark T.-C. Nguyen
Ming C. Wu
Liwei Lin
2016
Recent advancements in micro-optical and micro-mechanical resonator technologies haveallowed researchers to exploit coupling between the optical field and mechanical motionin an optical cavity to affect cooling or amplification of mechanical motion. Cooling the mechanical motion of microscale objects has been of high scientific interest, since it facilitates observation and exploration of certain quantum phenomena, e.g., the standard quantum limit of detection. On the other hand, amplification of the mechanical motion...

Integrated Mesoscopic Fluidic Interconnects for Micro-Machined Fluidic Devices

Jennifer Ann Scalf
Albert P. Pisano
Dorian Liepmann
1999

An approach to fluidic interconnection which integrates a mesoscopic needle with a fluidic micro-device and which uses a membrane as a connector has been developed. This concept has been realized by the use of fusion bonding to create embedded devices within the...

Incremental Network Programming for Wireless Sensors

Jaein Jeong
Kristofer S.J. Pister
David E. Culler
2004

One problem of the current network programming implementation of TinyOS is that it takes much longer than the traditional in-system programming due to the slow radio connection. We extended the network programming implementation of TinyOS 1.1 release so that it can reduce the programming time using the program code history. The host program generates the difference of the two program images using the Rsync algorithm and it sends the difference to the sensor nodes as script messages. The sense nodes rebuild the program image based on the previous program version and the recived script...

Integration of Hydrogels and Plastics into Microfabrication Processes towards a MEMS RF-Interrogated Biosensor

Sebastien Payen
Albert P. Pisano
Liwei Lin
Amy E. Herr
2007
Very inexpensive biosensors capable of monitoring biometrics data of a living organism have long been a goal of biomedical device technology. As such the integration of polymers and plastics are a good solution to achieve low cost and powerless devices. This dissertation presents experimental results on the integration of hydrogels (a class of polymer which swells in water) into microfabrication processes and the development of a new, all-plastic pH sensor. In particular, the work done on oxygen diffusion in hydrogels...

HexSil Micro Disk Drive Arm

Roel Dieron
Albert P. Pisano
Roberto Horowitz
1996

The mechanical properties of a novel material is characterized as part of the current effort to develop an integrated micro disk drive arm using mold micro-machining technology. A theoretical and finite element model of HexSil, a sandwich panel like material with hexago...

Highly Scalable Silicon Photonic Switches Based on Waveguide Crossbar with Movable Waveguide Couplers

Sangyoon Han
Ming C. Wu
Richard S. Muller
Liwei Lin
2016
Fast opticalcircuitswitches (OCS) having a large number of ports can significantly enhance the performance and the efficiency of modern data centers by actively rearranging network patternsCommercially available optical switches typically operate with the use of moving mirror arrays. These switches can have port counts...

Fabrication Of Ultra Thick Ferromagnetic Structures In Silicon

Debbie G. Jones
Albert P. Pisano
Seth Sanders
2004

A novel fabrication process has been developed to create ultra thick ferromagnetic structures in silicon. The structures are fabricated by electroforming NiFe into silicon templates patterned with deep reactive ion etching(DRIE). Thin films are deposited into photoresist molds for...