Quattrone Nanofabrication

Leading-Edge Nanofabrication

The Quattrone Nanofabrication Facility supports nanoelectronics, nanomaterials development and integration, soft matter, microfluidics and MEMS/NEMS.

QNF resides in the Krishna P. Singh Center for Nanotechnology. By providing core nanofabrication capabilities, our mission is to enable research and development in a number of areas. As embodied in the Penn Compact, QNF focuses on increased access, as well as integrating knowledge by engaging the Greater Philadelphia Region and far beyond. Our core endeavors are to support teaching, research, service and commercialization at the micro- and nanoscale.

QNF staff operates a 10,000sq.ft. cleanroom with leading-edge equipment capable of electron-beam and optical lithography, physical and chemical vapor deposition, dry and wet processing, metrology, and device characterization. In addition, a complimentary facility for soft materials and laser micromachining is maintained by QNF for diverse materials processing, microfluidics and lab-on-chip activities. For device packaging and hybridization, there is a suite of backend equipment available for wirebonding, wafer bonding, electrical testing and wafer dicing.


Eric Johnston

Director, Quattrone Nanofabrication Facility

While overseeing the operations and management of the QNF, he is focused on building efficiencies in tool and process training that will improve outcomes for the user community, as well as making new tools and processes available. He comes from a microfluidics background and continues to provide training and support in that area.



David Barth, Ph.D.

Senior Manager, Lithography & Advanced Processing
Quattrone Nanofabrication Facility

David Barth is responsible for lithography, process integration, and new process development in the QNF. His background includes nanophotonic device fabrication, electron beam lithography, and process support on a variety of fabrication tools and techniques. He has a Ph.D. from UC Berkeley and a B.E. and M.E. from Stevens Institute of Technology in Mechanical Engineering.


Kyle Keenan

Senior Manager, Laboratory Operations
Quattrone Nanofabrication Facility

Kyle’s responsibilities include cleanroom processing equipment health and optimization, oversight of new equipment installation and qualification, as well as day-to-day operations.  Prior to joining Penn, Kyle worked at MIT Lincoln Laboratory as a photolithography and metrology specialist, and at Alpha Industries (now Skyworks, Inc.) as a process engineering assistant. He has a BA in Philosophy from Assumption College in Worcester, MA, and has been working in nanotechnology for more than 25 years.


Charles Veith

Purchasing and Micro Contamination Manager,
Working Group Chair, Vendor Relations, (NNCI)

Charles R. Veith is a Member of Technical Staff in the Quattrone Nanofabrication Facility.  His main responsibilities are owner and manager of all wet process infrastructure, designing, building and implementing comprehensive seamless low cost research material sourcing as well as supporting facilities and lead efforts to sustain and improve clean room quality.  Prior to joining Penn, Charlie held positions at Intel Corporation and Digital Equipment Corporation.  Charlie has a BA in Economics and Technical in Lean Implementation.  Charlie’s has had a well recognized twenty-seven plus year career in semiconductor processing, materials, safety, finance, facilities, lean and educational outreach.


Mohsen (Sam) Azadi, Ph.D.

Principal Scientist

Mohsen Azadi is a Principal Scientist at Singh Center for Nanotechnology at the University of Pennsylvania. He is responsible for research support and process development for the internal and external users at QNF. Prior to joining Singh Center, he was a PhD student at University of Pennsylvania working on micro and nanofabrication of MEMS/NEMS devices for photophoretic flight, Direct Energy conversion applications, and  interstellar flight. He is a scientific and technical committee & editorial review board member at World Academy of Science, Engineering and Technology. He served as a member of the Dean’s Advisory Board in the School of Engineering and Applied Science from Dec 2019 to July 2021.


Jason A. Röhr, Ph.D.

Principal Scientist 

Jason is a Principal Scientist at the Singh Center. He is responsible for the physical vapor deposition and electrical characterization tools within the QNF. Prior to joining Penn, Jason held postdoc positions at NYU and Yale University where he studied a variety of renewable energy systems, including next generation solar cells. Jason has a broad interest in solid-state physics and devices, and is intrigued by new potential applications for optoelectronics.


David Jones

Senior Nanofabrication Engineer

David J. Jones is a member of technical staff in the Quattrone Nanofabrication Facility.  His main responsibilities are process development & characterization, remote & internal user processing support and training QNF users on QNF equipment.  He has a BS in Chemical Engineering from Clarkson University.


Travis Venables

Lead Cleanroom Equipment Engineer

Travis is the Lead Cleanroom Equipment Engineer for the Quattrone Nanofabrication Facility. His main responsibilities are responding to equipment problem reports, performing preventive maintenance on all cleanroom equipment, projects to help with lab functionality, and assisting in all aspects of day-to-day operations. Before joining Penn, Travis worked at Princeton University as a Laboratory Coordinator/ Cleanroom Manager of the Quantum Device NanoFabrication Laboratory (QDNL). He has a BS in Biology and a minor in Environmental studies from Ursinus College in Collegeville, PA.


Feaz Kalamodeen

Lab Assistant

Feaz is the tactical leader for Micro Contamination Activities. He is also the point person for stockroom servicing support for 725 researchers at the QNF. His constant inventory control of 80-plus items has helped keep the QNF fully operation for the past two years.