Micro Structures & Sensors Lab
Kenny Group @ Stanford

Ian B. Flader


PhD Candidate

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

Research

Novel processes for epitaxial encapsulation
Sensor integration and performance optimization
Disk resonating gyroscope design/characterization
Optimization techniques

Education

Stanford University
(2012 - present) PhD Candidate in Mechanical Engineering

Stanford University
(Winter 2013) M.S. in Mechanical Engineering

University of Tennessee
(2008 - 2012) B.S. in Mechanical Engineering

Experience

Schlumberger
(2012) Reliability Engineer
LEAN project leader and value mapping tools.

Schlumberger
(2011) Reliability Engineer
Statistical failure analysis of drilling tools.

Proven Technologies
(2010) Engineering Intern
Systems design and manufacture.

Fellowships / Awards

Best Student Paper Award (Track 1)
(2015) IEEE Sensors 2015 - "Tunable Quality Factor Through 1:1 Modal Coupling in a Disk Resonator"

Summa Cum Laude
(2012) University of Tennessee

Engineering Science Scholarship
(2012) University of Tennessee

Volunteer Scholarship
(2008-2012) University of Tennessee

HOPE Scholarship
(2008-2012) University of Tennessee

Publications

Conference
V. Maiwald, Y. Chen, M. Muller, I. B. Flader, C. Roman, D. B. Heinz, D. D. Shin, T. W. Kenny, and C. Hierold, "Transfer function tuning of a broadband shoaling mechanical amplifier near the electrostatic instability," 2017 19th International Conference on Solid-State Sensors, Actuators and Microsystems (TRANSDUCERS), pp. 802-805, Jun 2017.
Conference
J. Rodriguez, D. D. Gerrard, S. Chandorkar, Y. Chen, G. M. Glaze, I. B. Flader, C. H. Ahn, E. J. Ng, and T. W. Kenny, "Wide-range temperature dependence studies for devices limited by thermoelastic dissipation and anchor damping," 2017 19th International Conference on Solid-State Sensors, Actuators and Microsystems (TRANSDUCERS), pp. 1100-1103, Jun 2017.
Conference
Dustin D. Gerrard, Yunhan Chen, Saurabh A. Chandorkar, Guo Yu, Janna Rodriguez, Ian B. Flader, Dongsuk D. Shin, Carl D. Meinhart, Ole Sigmund, and Thomas W. Kenny, "Topology optimization for reduction of thermo-elastic dissipation in MEMS resonators," 2017 19th International Conference on Solid-State Sensors, Actuators and Microsystems (TRANSDUCERS), pp. 794-797, Jun 2017.
Conference
Ian B. Flader, Yunhan Chen, Dustin D. Gerrard, and Thomas W. Kenny, "Wafer-scale encapsulation of fully differential electrodes for mutli-axis inertial sensing," 2017 19th International Conference on Solid-State Sensors, Actuators and Microsystems (TRANSDUCERS), pp. 591-594, Jun 2017.
Conference
Dongsuk D. Shin, Yunhan Chen, Ian B. Flader, and Thomas W. Kenny, "Epitaxially encapsulated resonant accelerometer with an on-chip micro-oven," 2017 19th International Conference on Solid-State Sensors, Actuators and Microsystems (TRANSDUCERS), pp. 595-598, Jun 2017.
Conference
David B. Heinz, Ian B. Flader, Yunhan Chen, Gabrielle D. Vukasin, Lizmarie Comenencia Ortiz, and Thomas W. Kenny, "Direct comparison of stiction properties of oxide coated polysilicon and smooth single crystal silicon," 2017 19th International Conference on Solid-State Sensors, Actuators and Microsystems (TRANSDUCERS), pp. 1203-1206, Jun 2017.
Conference
Soner Sonmezoglu, Ian B. Flader, Yunhan Chen, Dongsuk D. Shin, Thomas W. Kenny, and David A. Horsley, "Dual-resonator MEMS magnetic sensor with differential amplitude modulation," 2017 19th International Conference on Solid-State Sensors, Actuators and Microsystems (TRANSDUCERS), pp. 814-817, Jun 2017.
Conference
James M.L. Miller, David B. Heinz, Ian B. Flader, Yunhan Chen, Dongsuk D. Shin, and Thomas W. Kenny, "Effective quality factor and temperature dependence of self-oscillations in a thermal-piezoresistively pumped resonator," 2017 19th International Conference on Solid-State Sensors, Actuators and Microsystems (TRANSDUCERS), pp. 1907-1910, Jun 2017.
Conference
Yunhan Chen, Ian B. Flader, Dongsuk D. Shin, Chae Hyuck Ahn, Lizmarie Comenencia Ortiz, and Thomas W. Kenny, "Fabrication of wide and deep cavities for silicon MEMS devices without wafer bonding," 2017 IEEE International Symposium on Inertial Sensors and Systems (INERTIAL), pp. 113-116, Mar 2017.
Conference
Alexandra Efimovskaya, Yushi Yang, Eldwin Ng, Yunhan Chen, Ian Flader, Thomas W. Kenny, and Andrei M. Shkel, "Compact roll-pitch-yaw gyroscope implemented in wafer-level Epitaxial Silicon Encapsulation process," 2017 IEEE International Symposium on Inertial Sensors and Systems (INERTIAL), pp. 1-2, Mar 2017.
Conference
Soner Sonmezoglu, Ian B. Flader, Yunhan Chen, Dongsuk D. Shin, Thomas W. Kenny, and David A. Horsley, "Dual-resonator MEMS Lorentz force magnetometer based on differential frequency modulation," 2017 IEEE International Symposium on Inertial Sensors and Systems (INERTIAL), pp. 160-163, Mar 2017.
Conference
Yunhan Chen, Dongsuk D. Shin, Ian B. Flader, and Thomas W. Kenny, "Tri-mode operation of highly doped silicon resonators for temperature compensated timing references," 2017 IEEE 30th International Conference on Micro Electro Mechanical Systems (MEMS), pp. 1158-1161, Jan 2017.
Conference
Alexandra Efimovskaya, Yu-Wei Lin, Yushi Yang, Eldwin Ng, Yunhan Chen, Ian Flader, Chae H. Ahn, Vu Hong, Thomas W. Kenny, and Andrei M. Shkel, "On cross-talk between gyroscopes integrated on a folded MEMS IMU Cube," 2017 IEEE 30th International Conference on Micro Electro Mechanical Systems (MEMS), pp. 1142-1145, Jan 2017.
Conference
Dustin D. Gerrard, Janna Rodriguez, Lizmarie Comenencia Ortiz, Saurabh A. Chandorkar, Ian B. Flader, Yunhan Chen, Dongsuk D. Shin, and Thomas W. Kenny, "Manipulation of heat flux paths in thermo-elastically damped resonators for Q optimization," 2017 IEEE 30th International Conference on Micro Electro Mechanical Systems (MEMS), pp. 1130-1133, Jan 2017.
Conference
Parsa Taheri-Tehrani, Martial Defoort, Yunhan Chen, Ian Flader, Dongsuk D. Shin, Thomas W. Kenny, and David A. Horsley, "Epitaxially-encapsulated quad mass resonator with shaped comb fingers for frequency tuning," 2017 IEEE 30th International Conference on Micro Electro Mechanical Systems (MEMS), pp. 1111-1114, Jan 2017.
Conference
Dongsuk D. Shin, Chae Hyuck Ahn, Yunhan Chen, David L. Christensen, Ian B. Flader, and Thomas W. Kenny, "Environmentally robust differential resonant accelerometer in a wafer-scale encapsulation process," 2017 IEEE 30th International Conference on Micro Electro Mechanical Systems (MEMS), pp. 17-20, Jan 2017.
Conference
Ian B. Flader, Yunhan Chen, Dongsuk D. Shin, David B. Heinz, Lizmarie Comenencia Ortiz, Anne L. Alter, Woosung Park, Kenneth E. Goodson, Thomas W. Kenny, "Micro-tethering for in-process stiction mitigation of highly compliant structures," 2017 IEEE 30th International Conference on Micro Electro Mechanical Systems (MEMS), Jan 2017.
Journal
Yunhan Chen, Ian B. Flader, Dongsuk D. Shin, Chae Hyuck Ahn, Janna Rodriguez, and Thomas W. Kenny, "Robust Method of Fabricating Epitaxially Encapsulated MEMS Devices with Large Gaps," Journal of Microelectromechanical Systems, pp. 1-9, 2017.
Journal
Yushi Yang, Eldwin J. Ng, Pavel M. Polunin, Yunhan Chen, Ian B. Flader, Steven W. Shaw, Mark I. Dykman, and Thomas W. Kenny, "Nonlinearity of Degenerately Doped Bulk-Mode Silicon MEMS Resonators," Journal of Microelectromechanical Systems, Vol. 25, No. 5, pp. 859-869, Oct 2016.
Conference
Ian B. Flader, Chae H. Ahn, Dustin D. Gerrard, Eldwin J. Ng, Yushi Yang, Vu A. Hong, Marco Pavone, and Thomas W. Kenny, "Autonomous calibration of MEMS disk resonating gyroscope for improved sensor performance," 2016 American Control Conference (ACC), pp. 5803-5810, Jul 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, Vol. 25, No. 3, pp. 489-497, Jun 2016.
Conference
Ian B. Flader, Chae Hyuck Ahn, Eldwin J. Ng, Yushi Yang, Vu A. Hong, and Thomas W. Kenny, "Stochastic method for disk resonating gyroscope mode matching and quadrature nulling," 2016 IEEE 29th International Conference on Micro Electro Mechanical Systems (MEMS), pp. 998-1001, Jan 2016.
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.
Conference
Ian B. Flader, Chae H. Ahn, Yushi Yang, Eldwin J. Ng, Vu A. Hong, Jeesu Baek, and Thomas W. Kenny, "Tunable quality factor through 1:1 modal coupling in a disk resonator," 2015 IEEE SENSORS, pp. 1-4, Nov 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.
Journal
Chae Hyuck Ahn, Eldwin J. Ng, Vu A. Hong, Yushi Yang, Brian J. Lee, Ian Flader, Thomas W. Kenny, "Mode-Matching of Wineglass Mode Disk Resonator Gyroscope in (100) Single Crystal Silicon," Journal of Microelectromechanical Systems, Vol. 24, No. 2, pp. 343-350, Apr 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
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.