Publications

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...

Integrated Nanoscale Antenna-LED for On-Chip Optical Communication

Seth Fortuna
Ming C. Wu
Eli Yablonovitch
Jie Yao
2017
Traditional semiconductor light emitting diodes (LEDs) have low modulation speed because of long spontaneous emission lifetime. Spontaneous emission in semiconductors (andindeed most light emitters) is an inherently slow process owing to the size mismatch betweenthe dipole length of the optical dipole oscillators responsible for light emission and the wave-length of the emitted light. More simply stated: semiconductors behave as a poor antenna for its own light emission. By coupling a semiconductor at the...

Integrated Biophysical Microfluidic Platforms for Pathogen Detection and Single Cell Analysis

Poorya Sabounchi
Luke P. Lee
Albert P. Pisano
Liwei Lin
Daniel A. Fletcher
2007
Pathogen detection is of the utmost importance primarily for health and safety reasons. The most common problem encountered with current pathogen monitoring techniques is the inverse relationship between specificity versus sensitivity and speed. Current tools used for pathogen identification are accurate but require a vast amount of sample preparation time, typically from an experienced operator in a laboratory setting and therefore not suitable for...

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 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...

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...

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...

Fabrication and Characterization of Gecko-inspired Fibrillar Adhesive

Yongkwan Kim
Roya Maboudian
David B. Graves
Ali Javey
2014
Over the last decade, geckos remarkable ability to stick to and climb surfaces found in nature has motivated a wide range of scientific interest in engineering geckomimetic surface for various adhesive and high friction applications. The high adhesion and friction of its pads have been attributed to a complex array of hairy structures, which maximize surface area for van der Waals interaction between the toes and the counter...

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...