- Shipped two generations of iPhone as part of the Touch and 3D-Touch Teams- Played key roles to identify, measure, analyze, and solve system-level coex problems affecting capacitive touch and force sensors- Deployed test stations in China during engineering builds and delivered success in all key areas of module development, from design to failure analysis, in some of the highest volume product lines in the world

- Oversaw progress of seven Ph.D. students and support their doctoral studies and experiments as part of four research programs funded by DARPA and IARPA. Coauthored 5 patents and 11 conference papers.- Led the process development for graphene-based, one-shot micro valve and its integration to vaporizable polymer packets filled with rubidium as part of a DARPA Program.- Improved the Solar TILE (STILE) embedded-system developed during doctoral studies to include high precision motors and ZigBee wireless communication.- Collaborated on writing of six grants funded by DARPA, IARPA, DOE, and NSF along with our external R&D partners with a total budget over $18 million.- Supported development of piezoelectric stages for inertial sensor calibration, electrostatic guide channels for micro electron accelerators, and ultrasonic phased-arrays for reconfigurable links.- Designed an acoustic matching layer that yields a 5X improvement in echo amplitude for AlNintegrated CMOS chips to be used in 1.5 GHz ultrasonic fingerprint imaging.

- Taught Microelectromechanical Systems course: Fall 2012, Spring 2014- Updated and reestablished the device lab sessions of the class so that students got hands-on experience in testing surface micromachined sensors and actuators that they learned in lectures.

- Assisted licensing of the Solar TILE technology, which is a modular robotic platform for general purpose Concentrated Solar Power harvesting developed during my doctoral studies- Led the product R&D and support grant writing efforts as an early-stage startup- Built the control circuitry and graphical user interface for SOLAR TILE array consisting of 9 pan-tilt stages and demonstrated a 42% reduction in soil pathogen pressure by focused sun light

- Developed a charge-shuttle based device idea for vibration energy harvesting, and brought it from a concept to a patent application in less than five months through the phases of modeling, simulation, prototype design/fabrication, experimentation, data analysis, and documentation.- Proposed operational and facilities-related practices that are aimed at more prudent standards and higher process yields within the METU-MEMS cleanroom.

- Led the SOLAR Tiles development team under strict time and budget constraints.- Effort highlighted in SolarPACES 2010 Conference as one of the future directions for distributed solar energy collection and invited for publication in Journal of Solar Energy Engineering.

- Developed Solar TILE (STILE) technology that enables modular, scalable, wireless, self-powered,and thin-profile integration of 2-D steerable, centimeter to micrometer sized reflectors to perform light redirection and focusing. Played key roles in prototype building, experimentation, international patent disclosure, and proposal writing as a co-inventor of this innovative platform. Applications of the STILE technology include pervasive concentrated solar power harvesting and large-area beam redirection.- Engineered an Ultrasound-Enhanced, Electrostatic Batch Assembly (U2EBA) platform to erect microstructures such as surface micromachined lenses or mirrors (for free-space opticalmicrosystems) using a combination of ultrasonic and electrostatic forces at elevated temperatures. Demonstrated yields up to 100% in 8x8 arrays of hinged micromirrors.The outcome of U2EBA research contributed to the product development of a microscale FTIR spectrometer system by Block MEMS LLC in Marlborough, MA, USA.- Built an experimental setup and amplifier to demonstrate piezoelectric detection of MEMS vibrations. Used a bulk-piezoelectric ceramic (PZT) to sense the sound waves radiated from anchors of surface-micromachined, electrostatically actuated beams with typical resonant frequencies of 200-300 kHz. Modeled the energy exchange between bulk-PZT and microbeams using an equivalent electrical circuit. Performed the first reported comparison of bulk-PZT and electrostatic actuation on the same device.Other Selected Research Activities:- Capacitive sensing by quartz crystal oscillators: 2008 – 2009- Behavioral modeling and schematic based simulation of MEMS switches: 2005 – 2006- Surface modifications using scanning probe microscopy: 2003 – 2004- 1-D & 2-D platforms for ultrasonically actuated particle transport: 2003 – 2007- A 100kHz - 10MHz 16 channel phase-shifter circuit board to control 1-D flow in a microchannel: Summer 2002

- Performed failure analysis of a microfluidic inkjet head developed by the XEROX MEMSJET team. Identified and characterized dielectric charging as a failure mode of the device, which has arrays of microchambers, electrostatically actuated membranes, and orifices acting as nozzles.- Built automated test and data analysis platforms for C-V and I-V measurements using LabVIEW and high-precision semiconductor characterization instruments.