Micro Structures & Sensors Lab
Kenny Group @ Stanford

Yunhan Chen


PhD Candidate

yunhanc :at: mems.stanford.edu
440 Escondido Mall, Bldg 530 Rm 224, Stanford, CA 94305, USA
Advisor: Thomas W. Kenny

Research

Epi-Seal Process, Ovenized MEMS Resonators, Topology Optimization

Integrated Epi-Seal MEMS

Ovenized Dual-Mode Clock (ODMC)


Education

Stanford University
(2013 - present) PhD Candidate in Mechanical Engineering

Stanford University
(2011 - 2013) M.S. in Mechanical Engineering

Tsinghua University
(2007 - 2011) B.S. in Precision Instrument and Mechanology

Experience

Class Experience
ME218 Smart Product Design Series
ME218A: http://me218aproject- theforbiddenforest.weebly.com/
ME218B: http://cuckoocrab.weebly.com/
ME218C: http://me218buzzboat.weebly.com/

Teaching Experience
Teaching Assistant for:
ME 70, Introductory Fluids Engineering (Spring 2012)
ME 321, Optofluidics: Interplay of Light and Fluids at the Micro and Nanoscale (Fall 2012)
ENGR 240, Introduction to Micro and Nano Electromechanical Systems (Winter 2013)


Fellowships / Awards

Stanford Graduate Fellowship
(2013) Larry Yung Fellow

Publications

Conference
Chae Hyuck Ahn, Dongsuk D. Shin, Vu A. Hong, Yushi Yang, Eldwin J. Ng, Yunhan Chen, Ian B. Flader, and Thomas W. Kenny, "Encapsulated disk resonator gyroscope with differential internal electrodes," 2016 IEEE 29th International Conference on Micro Electro Mechanical Systems (MEMS), pp. 962-965, Jan 2016.
Conference
Yunhan Chen, Eldwin J. Ng, Dongsuk D. Shin, Chae H. Ahn, Yushi Yang, Ian B. Flader, Vu A. Hong, and Thomas W. Kenny, "Ovenized dual-mode clock (ODMC) based on highly doped single crystal silicon resonators," 2016 IEEE 29th International Conference on Micro Electro Mechanical Systems (MEMS), pp. 91-94, Jan 2016.
Conference
Parsa Taheri-Tehrani, Mitchell Kline, Igor Izyumin, Burak Eminoglu, Yu-Ching Yeh, Yushi Yang, Yunhan Chen, Ian Flader, Eldwin J. Ng, Thomas W. Kenny, Bernhard E. Boser, and David A. Horsley, "Epitaxially-encapsulated quad mass gyroscope with nonlinearity compensation," 2016 IEEE 29th International Conference on Micro Electro Mechanical Systems (MEMS), pp. 966-969, Jan 2016.
Conference
Vu A. Hong, David B. Heinz, David L. Christensen, Dongsuk D. Shin, Yunhan Chen, Chae Hyuck Ahn, Yushi Yang, Eldwin J. Ng, Ian B. Flader, and Thomas W. Kenny, "Overcoming stiction forces with resonant over-travel stops," 2016 IEEE 29th International Conference on Micro Electro Mechanical Systems (MEMS), pp. 47-50, Jan 2016.
Conference
S. Wisher, P. Shao, A. Norouzpour-Shirazi, Y. Yang, E. Ng, I. Flader, Y. Chen, D. Heinz, T. Kenny, and F. Ayazi, "A high-frequency epitaxially encapsulated single-drive quad-mass tri-axial resonant tuning fork gyroscope," 2016 IEEE 29th International Conference on Micro Electro Mechanical Systems (MEMS), pp. 930-933, Jan 2016.
Conference
Dustin D. Gerrard, Chae H. Ahn, Ian B. Flader, Yunhan Chen, Eldwin J. Ng, Yushi Yang, and Thomas W. Kenny, "Q-factor optimization in disk resonator gyroscopes via geometric parameterization," 2016 IEEE 29th International Conference on Micro Electro Mechanical Systems (MEMS), pp. 994-997, Jan 2016.
Journal
Yushi Yang, Eldwin J. Ng, Yunhan Chen, Ian B. Flader, and Thomas W. Kenny, "A Unified Epi-Seal Process for Fabrication of High-Stability Microelectromechanical Devices," Journal of Microelectromechanical Systems, pp. 1-9, 2016.
Conference
C.H. Ahn, V.A. Hong, W. Park, Y. Yang, Y. Chen, E.J. Ng, J. Huynh, A.D. Challoner, K.E. Goodson, and T.W. Kenny, "On-chip ovenization of encapsulated Disk Resonator Gyroscope (drg)," 2015 Transducers - 2015 18th International Conference on Solid-State Sensors, Actuators and Microsystems (TRANSDUCERS), pp. 39-42, Jun 2015.
Conference
Yushi Yang, Eldwin J. Ng, Yunhan Chen, Ian B. Flader, Chae Hyuck Ahn, Vu A. Hong, and Thomas W. Kenny, "A unified epi-seal process for resonators and inertial sensors," 2015 Transducers - 2015 18th International Conference on Solid-State Sensors, Actuators and Microsystems (TRANSDUCERS), pp. 1326-1329, Jun 2015.
Conference
J. Rodriguez, Y. Yang, C.H. Ahn, Y. Chen, E.J. Ng, V.A. Hong, S. Ghaffari, and T.W. Kenny, "Damping mechanisms in light and heavy-doped dual-ring and double-ended tuning fork resonators (DETF)," 2015 Transducers - 2015 18th International Conference on Solid-State Sensors, Actuators and Microsystems (TRANSDUCERS), pp. 2005-2008, Jun 2015.
Conference
E. Ng, Y. Yang, V.A. Hong, C.H. Ahn, D.B. Heinz, I. Flader, Y. Chen, C.L.M. Everhart, B. Kim, R. Melamud, R.N. Candler, M.A. Hopcroft, J.C. Salvia, S. Yoneoka, A.B. Graham, M. Agarwal, M.W. Messana, K.L. Chen, H.K. Lee, S. Wang, G. Bahl, V. Qu, C.F. Chiang, T.W. Kenny, A. Partridge, M. Lutz, G. Yama, and G.J. O'Brien, "The long path from MEMS resonators to timing products," 2015 28th IEEE International Conference on Micro Electro Mechanical Systems (MEMS), pp. 1-2, Jan 2015.
Conference
Yushi Yang, Eldwin Ng, Pavel Polunin, Yunhan Chen, Scott Strachan, Vu Hong, Chae Hyuck Ahn, Ori Shoshani, Steven Shaw, Mark Dykman, and Thomas Kenny, "Experimental investigation on mode coupling of bulk mode silicon MEMS resonators," 2015 28th IEEE International Conference on Micro Electro Mechanical Systems (MEMS), pp. 1008-1011, Jan 2015.
Conference
Yunhan Chen, Eldwin J. Ng, Yushi Yang, Chae Hyuck Ahn, Ian Flader, and Thomas W. Kenny, "In-situ ovenization of Lamé-mode silicon resonators for temperature compensation," 2015 28th IEEE International Conference on Micro Electro Mechanical Systems (MEMS), pp. 809-812, Jan 2015.
Conference
Yushi Yang, Eldwin J. Ng, Vu A. Hong, Chae Hyuck Ahn, Yunhan Chen, Elia Ahadi, Mark Dykman, and Thomas W. Kenny, "Measurement of the nonlinear elasticity of doped bulk-mode MEMS resonators," Solid-State Sensors, Actuators, and Microsystems Workshop, Hilton Head 2014, pp. 285-288, Jun 2014.
Conference
Eldwin J. Ng, Yushi Yang, Yunhan Chen, and Thomas W. Kenny, "An etch hole-free process for temperature-compensated, high Q, encapsulated resonators," Solid-State Sensors, Actuators, and Microsystems Workshop, Hilton Head 2014, pp. 99-100, Jun 2014.
Journal
L. Gerber, L. Rosenfeld, Y. Chen, and S. K.Y. Tang, "Time Capsule: An autonomous sensor and recorder based on diffusion-reaction", Lab on a Chip, 14, 4324-4328, 2014.
Journal
L. Rosenfeld*, L. Fan*, Y. Chen, R. Swoboda, and S. K.Y. Tang, "Break-up of droplets in a concentrated emulsion flowing through a narrow constriction", Soft Matter, 10, 421-430, 2014.
Conference
Y. Chen, M. Pan, S. K.Y. Yang, "Characterization of Dye Leakage in Microfluidic Droplets", The 17th International Conference on Miniaturized Systems for Chemistry and Life Sciences (MicroTAS 2013), Freiburg, Germany, pp. 1947-1949, Oct 2013.
Conference
Y. Chen, S. K.Y. Yang, "Time Capsule: A Diffusion-Reaction Based Passive Sensing System with Timing and Recording Functions", The 17th International Conference on Miniaturized Systems for Chemistry and Life Sciences (MicroTAS 2013), Freiburg, Germany, pp. 17-19, Oct 2013.
Journal
Y. Chen, A. W. Gani, and S. K. Y. Tang, ,"Characterization of Sensitivity and Specificity in Leaky Droplet-based Assays," Lab on a Chip, 12, 5093 – 5103, 2012.