Abstract: New advancements in cloud computing and machine learning have created an opportunity for a revolutionary advancement in how hardware engineering is performed. In this talk, Ryan Diestelhorst will discuss his experiences founding a successful MEMS sensor company as a Georgia Tech graduate, and how that journey informed his vision of the future of engineering. He will describe how OnScale is redefining the boundaries of high-performance simulation by giving engineers immediate and unlimited access to super computers to solve their most difficult problems.

Bio: Ryan Dietelhorst is an experienced semiconductor and hardware engineer as well as an accomplished entrepreneur and technologist. He co-founded NextInput, which brought a world-class MEMS force sensing technology to market for mobile, automotive, and industrial applications. In his capacity as CTO he developed a broad IP portfolio, helped raise $30M in seed and venture capital funding, and brought multiple high-volume design wins to mass production. Prior to NextInput, Ryan designed specialized integrated circuits with NASA, the Jet Propulsion Laboratory, and Argonne National Laboratory while completing his PhD in Electrical Engineering at Georgia Tech. Ryan is now the VP of Strategy at OnScale, a cloud-based engineering simulation company seeking to break the legacy simulation model.

Abstract: Neuro-inspired computing is a new computing paradigm that emulates the neural network for information processing. To enable the large-scale neuromorphic system, it is important to develop compact nanoscale devices to support the synaptic and neuronal functions. In this talk, I will discuss recent progress in this domain that integrates oxide based synaptic and neuronal devices in neuromorphic hardware such as machine/deep learning accelerators. First, I will discuss the desired characteristics of HfO₂ based resistive synaptic devices (e.g. analog multilevel states, weight tuning linearity, variation/noises) and NbO₂ based oscillation neuron devices, and show the principles of offline training and online training. Next, I will introduce the crossbar array architecture to efficiently implement the weighted sum and weight update operations that are commonly used in the machine/deep learning algorithms, and show array-level experimental demonstrations for these key operations. Lastly, I will show our recent work on doped HfO₂ based ferroelectric transistor based synaptic cell design that overcomes the challenges to achieve high training accuracy for online training.

Bio: Shimeng Yu is an associate professor of electrical and computer engineering at Georgia Tech. He received the B.S. degree in microelectronics from Peking University in 2009, and the M.S. degree and Ph.D. degree in electrical engineering from Stanford University in 2011 and 2013, respectively. From 2013 to 2018, he was an assistant professor of electrical and computer engineering at Arizona State University. Prof. Yu’s research interests are nanoelectronic devices and circuits for energy-efficient computing systems. His expertise is on the emerging non-volatile memories (e.g., RRAM, ferroelectrics) for different applications, such as machine/deep learning accelerator, neuromorphic computing, monolithic 3D integration, and hardware security, etc. Among Prof. Yu’s honors, he was a recipient of the DOD-DTRA Young Investigator Award in 2015, the NSF Faculty Early CAREER Award in 2016, the ASU Fulton Outstanding Assistant Professor in 2017, the IEEE Electron Devices Society (EDS) Early Career Award in 2017, and the ACM Special Interests Group on Design Automation (SIGDA) Outstanding New Faculty Award in 2018. He is a senior member of the IEEE.

Abstract: In this talk, we will discuss how printable organic conjugated semiconducting molecules and polymers are creating new disruptive technologies that are impacting all industries. We will present recent advances in various solid-state device platforms including, organic light-emitting diodes (OLEDs), organic photodetectors (OPDs), organic photovoltaic devices (OPVs), and organic thin-film transistors (OTFTs). We will emphasize the importance of interfaces in devices and show examples on how to engineer their electrical properties. We will present a simple processing technique for the electrical doping of organic semiconductors over a limited depth near the surface of the film that is based on immersing the film into a polyoxometalate solution. Such approached can drastically reduce the fabrication cost of such devices, simplify device architecture, and lead to all-organic devices fabricated by all-additive printing techniques. As an illustration of the simplicity and versatility of this process we will discuss how high-performance organic solar cells with simplified architecture can be implemented. Finally, we will present the results of a detailed operational lifetime study of OTFTs showing that organic photonics and electronics can yield a stability level superior to that of amorphous silicon.

Bio: Bernard Kippelen is the Joseph M. Pettit Professor of Electrical and Computer Engineering at Georgia Tech. His research interests range from the investigation of fundamental physical processes (nonlinear optical activity, charge transport, light harvesting and emission) in organic-based nanostructured thin films, to the design, fabrication and testing of light-weight flexible optoelectronic devices based on hybrid printable materials. He is a co-founder and co-President of the Institut Lafayette, an innovation platform located on Georgia Tech’s European campus Georgia Tech Lorraine (Metz, France), and he serves as Director of the Center for Organic Photonics and Electronics

Abstract: Perovskite Chalcogenides are a new class of semiconductors which have tunable band gap in the visible to infrared part of the electromagnetic spectrum. Besides this band gap tunability, they offer a unique opportunity to realize large density of states semiconductors with high carrier mobility. In this talk, I will discuss some of the experimental advances made both in my research group and in the research community on the theory, synthesis of these materials and understanding their optoelectronic properties. Perovskite chalcogenides have a large structural and chemical phase, which allows us finer knobs to tailor light-matter interaction precisely over a broad energy range spanning the visible to infrared spectrum. I will show that controlling dimensionality of these materials has profound influence on the light-matter interaction, which results in novel properties such as highly anisotropic absorption and refraction, unconventional band gap evolution. Finally, I will provide a general outlook for future studies on these exciting new class of materials

Bio: Jayakanth Ravichandran is an Assistant Professor in the Mork Family Department of Chemical Engineering and Materials Science with courtesy appointment in Ming Hsieh Department of Electrical and Computer Engineering at the University of Southern California. He received his Ph.D. degree from University of California, Berkeley in 2011. He performed post-doctoral research at Columbia University and briefly at Harvard University, before beginning this current position. His research interests are in materials design, synthesis, characterization, and physical properties of complex materials for electronic, photonic, and energy applications. He was named an Early Career Scholar by the Journal of Materials Research in 2017 and was a Link Energy Fellow.

Abstract: The history of silicon is usually told as a history of electronic materials and devices. However, it may be better told as a history of manufacturing innovation. This talk will take a journey through the manufacturing innovations that transformed silicon from its humble beginnings as the most abundant metal in Earth’s crust to the enabler of the computer chips that underpin the modern economy. The journey begins with the extraction of silicon from sand and its processing into the most compositionally pure and structurally perfect human-made material. It continues through the mid-20th century breakthroughs that allowed for the fabrication and interconnection of high-quality electronic devices to form integrated circuits. It is from this perspective that we can most easily appreciate silicon’s impact on modern society and why it is finding increasing utility in technology areas as diverse as renewable energy, environmental sensing, and augmented reality. It is also from this perspective that we can understand the limitations of today’s manufacturing paradigm and begin to see what innovations might be necessary to enable silicon’s next act.

Bio: Michael A. Filler is an associate professor and the Traylor Faculty Fellow in the School of Chemical and Biomolecular Engineering at Georgia Tech. His research program lies at the intersection of chemical engineering and materials science, focusing on the synthesis, understanding, and deployment of nanoscale materials for applications in electronics, photonics, and energy conversion. He is co-director of the Community for Research on Active Surfaces and Interfaces (CRĀSI) and the host of Nanovation, a bimonthly podcast about the intersection of nanoscience, technology, manufacturing, and society. Filler has received numerous awards for his research and teaching, including the National Science Foundation CAREER Award, Georgia Tech Sigma Xi Young Faculty Award, and the CETL/BP Junior Faculty Teaching Excellence Award. He also has been recognized as a Camille and Henry Dreyfus Foundation Environmental Chemistry Mentor.

PLEASE NOTE LOCATION CHANGE: Pettit Microelectronics Building | 791 Atlantic Dr NW | Atlanta GA | 30332

Abstract: The distribution and interactions of single molecules in three-dimensionally organized cellular networks are fundamental to the function of living systems. Today, we still lack a complete understanding of how local molecular mechanisms are integrated and dynamically mapped over larger scales onto functional activities. The challenges pose high demands for imaging technologies to provide molecular specificity, nanometer-scale resolution, ultrafast speed, and accessibility across larger volumes of tissues. In this presentation, I will talk about my laboratory’s recently developed super-resolution and light-field microscopy, and functional imaging tools for high-throughput extraction of molecular information in cells and tissues with ultrahigh-spatiotemporal resolution and accessibility.

Bio:  Dr. Jia is currently an Assistant Professor in the Wallace H. Coulter Department of Biomedical Engineering at Georgia Institute of Technology and Emory University. He completed postdoctoral training at Harvard University and received a PhD in Electrical Engineering at Princeton University. Dr. Jia has been recognized for his research with the DARPA Young Faculty Award and NIH MIRA Award.

Abstract: With seabirds trapped in multipack drink rings, and mid-ocean islands of indestructible rubbish, the idea that plastics could play a big part in a sustainable future world might seem far-fetched. However, new smart photonic and electronic plastics may yet rescue the reputation of this all-consuming 20th century material. Research into such functional plastics for cars and buildings could drastically reduce the need for air conditioning and, thus, improve their energy efficiency. We will present recent efforts to design new plastics of desired photonic and electronic functions targeted for a greener world. One line of our enquiry is to explore the potential of new polymer-based systems that can offer the same flexibility, softness and light weight as commodity plastics but can control the flow of light therefore assisting energy (light) harvesting, e.g., of photovoltaic devices, or light out-coupling from light-emitting diodes. Other opportunities for such systems include photonic heat mirrors that can prevent undesired heat built up of solar cells limiting performance degradation during operation of the cells. Such mirrors also can be exploited to reduce the energy we waste to keep buildings at the temperature we want.

Bio: Natalie Stingelin (Stutzmann) FRSC is Professor of Functional Organic Materials at the Georgia Institute of Technology, with prior positions at Imperial College London, London, UK; the Cavendish Laboratory, University of Cambridge, Cambridge, UK; Queen Mary University of London, London, UK; the Philips Research Laboratories, Eindhoven, The Netherlands; and ETH Zürich, Zürich, Switzerland. She was awarded a ‘Chaire Internationale Associée’ by the Excellence Initiative of the Université de Bordeaux (2016), the Institute of Materials, Minerals & Mining's Rosenhain Medal and Prize (2014) and the Chinese Academy of Sciences (CAS) President's International Fellowship Initiative (PIFI) Award for Visiting Scientists (2015). She was the Chair of the 2016 Gordon Conference on “Electronic Processes in Organic Materials” as well as the Zing conference on “Organic Semiconductors.” She has published >160 papers and has 6 issued patents. Her research interests encompass organic electronics & photonics, bioelectronics, physical chemistry of organic functional materials, and smart inorganic/organic hybrid systems

The talk will be held in Room 102, Pettit/MiRC.

Abstract:

Organic Field-Effect Transistors are a common device used in modern day development of organic electronics. Until recently, most research regarding OFETs has been focused on developing novel process techniques while improvement in the desired property mobility has remained stagnant. The problem now is to develop a statistical methodology that focuses on this fact.

This talk will detail the initial steps in the development of the methodology. It will contain an in-depth discussion on physically justified features for data reduction, an outline of the difficulties of regression modeling in a small response environment, and the possible ways that relevant research outside of our process design can be used to deal with these issues.

Bio: 

Chris is a first year PhD student in the School of Industrial and Systems Engineering. He received a B.S. degree in Applied Mathematics from the State University of New York at Fredonia. Before Georgia Tech he had the opportunity to participate in two unique internships and a REU over a diversified field of disciplines. He has worked as a Demographic Data Analyst for Pitney Bowes Corporation and as an Radiological Emergency Planner for the New York State Office of Emergency Management. Additionally during his REU,  he conducted research involving CD4+ T-cells at the Virginia Bioinformatics Institute at Virginia Tech.

Chris is currently involved in research under the advisement of Drs. J-C Lu, Martha Grover, and Elsa Reichmanis. He is attempting to aid in the development of a scientific data-synthesis engine for unifying available big-data embedded in theoretical models, model simulations and past experiments. The process will aid toward designing new experiments that shore up potential knowledge gaps. From there the goal is to create a learning process that can investigate areas that have larger trust uncertainty.

8pm-10pm

Free Game Play!

Tech Rec

April 11: XBOX

April 18: PS3

April 25: Wii 

Abstract: This century has seen the end of Moore's Law and a consequent explosion of interest in new materials for electronics.  A central theme has been the control of electronic structure and transport properties through constraints of dimensionality and—more recently—topology.  The catalyst for this growing research in 2D and topological materials was the development of graphene; with Georgia Tech playing a leading role.  In this talk, I will discuss some of the ideas behind nanoelectronic applications of 2D and topological materials, and I will present scanning tunneling microscopy and spectroscopy methods that we have developed for determining the nanometer-scale electronic structure of graphene and related materials.

Bio: Professor First has been a faculty member in the School of Physics at Georgia Tech since 1990.  He earned a B.S. degree in physics from the University of Wisconsin and a Ph.D. from the University of Illinois in 1988.  First’s research has been in the physics of surfaces, interfaces, and nanostructures. Since 2001, his contributions have been instrumental to the development and understanding of epitaxial graphene on silicon carbide.  Professor First's Ph.D. students have earned several university-wide awards and one national honor.  He has served his profession in several capacities, including as founding Chair of the Magnetic Interfaces and Nanostructures Division of the AVS.

About the Impact Speaker Series:

Since 2002, the IMPACT Speaker Series has brought highly successful business leaders from a variety of industries to campus to share their experiences and give advice to students and other entrepreneurs on topics ranging from "building a venture around intellectual capital" to "successful entrepreneurship in large organizations" and "socially responsible leadership". The weekly series provides Georgia Tech students, alumni and the Atlanta business community an opportunity to network and learn from successful entrepreneurs, venture capitalists, and notable business and non-profit leaders.

The series is free and open to the public, and reservations are not required.

Biography

Professor Takao Someya of the University of Tokyo is one of the world’s leading experts in large-area organic electronics and circuits. He has received a number of awards, most recently a Japan Society for the Promotion of Science Prize (awarded in the presence of the Crown Prince of Japan), and the 1st Prize of the newly established German Innovation Award. He is a member of the board of directors of the U.S. Materials Research Society, one example among many of his constructive participation in professional societies and of his engagement in the international research community. On April 1, 2009, he occupied a new chair at the University of Tokyo that was created to promote multidisciplinary research.

His research ranges from physics to materials and processes to devices and circuits, which he crafts in innovative and unconventional configurations. He has demonstrated wireless power transfer (e.g. laptop charging from a grid embedded throughout a tabletop), the elements of electronic skin (e.g. demonstrating a robotic hand with sense of touch), and other visionary applications of large area electronics (such as a sheet of electronically programmable Braille). Soon to be seen is a “wearable ultrasound” fabric, such as for 24/7 fetal monitoring.

Abstract

Stretchable and Ultraflexible Electronics using Printed Organic Transistors

In view of the tremendous technical challenges for realizing next-generation information technology, organic semiconductors have attracted significant attention since the emerging electronics based on them have features that are complimentary to main stream electronics based on silicon. Thanks to the recent advent of organic transistors (FETs), the emergence of a new class of electronics makes full use of the unique features of organic semiconductors, such as the ultralow cost, low weight, and flexibility, is becoming more realistic. With this background, our group discerned that large-area circuits could be easily fabricated using organic transistors, which are essential for certain applications, and has developed large-area sensors and actuators using organic transistors. More accurately, we have integrated various types of sheet-type sensors and sheet-type actuators with organic transistors on plastic films and have demonstrated electronic artificial skin (E-skin), a sheet-type Braille display, a wireless power transmission sheet, and many other sheet-type devices. 

Biography

Ana Claudia Arias is an Acting Associate Professor at the Electrical Engineering and Computer Science Department at the University of California in Berkeley. Prior to joining the University of California she was the Manager of the Printed Electronic Devices Area and a Member of Research Staff at PARC, a Xerox Company, Palo Alto, CA. She went to PARC from Plastic Logic in Cambridge, UK where she led the semiconductor group. She did her PhD on semiconducting polymer blends for photovoltaic devices at the University of Cambridge, UK. Prior to that, she received her master and bachelor degrees in Physics from the Federal University of Paraná in Curitiba, Brazil. Her research focuses on the use of solution processed materials to fabricate flexible sensors and electronic systems.