Jan P. Allebach’s innovative halftone imaging technology for high-quality digital printing can be found in hundreds of millions of inkjet printers. Dr. Allebach’s tone-dependent error diffusion (TDED) algorithm was a major improvement to digital halftone image processing that overcame the poor image quality of early digital printers. His algorithm is a core technology found in Hewlett-Packard products ranging from affordable desktop printers to complex multifunction printing devices. The TDED is an enhancement of Dr. Allebach’s direct binary search (DBS) algorithm. Considered the gold standard for dispersed-dot halftone imaging, the DBS algorithm wasn’t suitable for the needs of desktop printers. Dr. Allebach’s team modified the error diffusion architecture to overcome undesirable texture patterns caused by traditional error diffusion algorithms to create an algorithm that could generate DBS-like images but for real-time systems such as desktop linkjet printers.
An IEEE Fellow, Dr. Allebach is the Hewlett-Packard Distinguished Professor of Electrical and Computer Engineering at Purdue University, West Lafayette, IN, USA.
Subramanian S. Iyer’s pioneering development of embedded dynamic random access memory (eDRAM) has boosted the power of computer processors for applications ranging from high-end servers to gaming consoles and personal electronics. Dr. Iyer recognized the need for large amounts of high-density, high-performance, and high-bandwidth memory placed close to the integrated circuit to fully exploit the power of computer processors. His eDRAM technology allows for integration of very large amounts of dense on-chip memory with significantly lower power and higher reliability compared to conventional methods. The on-chip memory solution has enabled more memory to be placed on smaller chips, resulting in systems with higher performance. Dr. Iyer has been the driving force in IBM’s commercialization of eDRAM, guiding it through all stages of development, and it has also become a standard feature of IBM’s application-specific integrated circuits.
An IEEE Fellow and IBM Fellow, Dr. Iyer is chief technologist with the Microelectronics Division of IBM’s Systems & Technology Group, Hopewell Junction, N.Y., responsible for technical strategy, embedded memory, and three-dimensional integration.
The persistence and contributions of Mark L. Burgener and Ronald E. Reedy overcame barriers to make silicon on sapphire (SOS) technology commercially feasible for wireless communications. Drs. Burgener and Reedy stood by SOS technology that, despite great promise, had initially been abandoned by semiconductor market leaders. First discovered during the 1960s, SOS technology presented manufacturing problems that prevented companies from pursuing commercialization. The efforts of Drs. Burgener and Reedy during the 1980s and 1990s overcame these obstacles, making SOS commercially viable for producing integrated circuits with improved speed, lower power consumption, and more isolation compared to bulk silicon circuits. Even after demonstrating viable SOS circuits, the pair had to erase the stigma associated with the earlier problems. They co-founded Peregrine Semiconductor in 1990 to spur their commercialization efforts. They developed the UltraCMOS process, which solved critical manufacturing issues and made SOS cost-effective. After an initial shipment of 100 chips in 1995, today Peregrine has sold over 500 million UltraCMOS integrated circuits.
Both IEEE Members, Dr. Burgener is vice president of advanced research and Dr. Reedy is the chief operating officer at Peregrine Semiconductor Corporation, San Diego, Calif.
With expertise that spans from fundamental research to practical product development, Dr. Weber’s career has been devoted to the advancement of plasma display panel technology. Dr. Weber developed the energy recovery sustain circuit, which reduces dissipated power of a plasma display panel by hundreds of watts, cutting power consumption in half. His ramp set-up waveform overcame the problem inherent in many display technologies of obtaining very dark regions of an image.
Dr. Weber transitioned from university researcher to business leader in 1987 when he founded Plasmaco and acquired what was then the world’s largest facility for manufacturing plasma displays. Panasonic later acquired Plasmaco as a wholly owned subsidiary, and Dr. Weber helped Panasonic develop its first commercial plasma television products in 1997. Dr. Weber was the first to demonstrate a high-quality 60-inch high-definition television image in 1999, ushering in today’s large-screen flat-panel market.
An IEEE Fellow, Dr. Weber has been recognized with numerous awards for his work in plasma displays. He is currently retired but holds 15 patents on plasma displays.
James M. Daughton, Stuart Parkin and Saied Tehrani each made key contributions to Magneto-Resistive Random Access Memory (MRAM) technology. The work of Dr. Daughton in sensors and couplers, Dr. Parkin in Magnetic Tunnel Junction, and Dr. Tehrani in materials and processes, when combined, helped make MRAM a viable memory technology for both military and commercial applications. MRAM is an integrated-circuit access memory fabricated with nanotechnology. Using an electron spin to store data, it has the capability to combine many of the best attributes of different types of semiconductor memories.
Dr. Daughton retired from NVE Corporation, Eden Prairie, MN in 2006; a company he founded in 1989. He served his last five years with the company as its chief technology officer, after serving as chief executive officer. Before founding NVE, Dr. Daughton spent more than 15 years at Honeywell Inc., where he was vice president of research and development and 10 years at IBM, working on magnetic and semiconductor memory devices. Dr. Daughton has served as a distinguished lecturer for the IEEE Magnetics Society and has been awarded the Patent Invention and Outstanding Achievement Awards from IBM. An IEEE Life Fellow, Dr. Daughton has published approximately 80 papers and holds more than 40 patents. He received bachelor’s, master’s and doctorate degrees in electrical engineering from Iowa State University.
Dr. Parkin is an IBM Fellow at the IBM Almaden Research Center, San Jose, California, where he manages the magnetoelectrics group, directs the IBM-Stanford Spintronic Science and Applications Center, and serves as a consulting professor at Stanford University. Dr. Parkin has received numerous awards and honors including: distinguished lecturer for the IEEE Magnetics Society; the Economist Magazine’s “No Boundaries” Award for Innovation; the American Institute of Physics Prize for Industrial Applications of Physics; the European Physical Society’s Hewlett-Packard Europhysics Prize; and the American Physical Society’s International New Materials Prize (1994). He is a Fellow of the IEEE, AAAS, APS, MRS and the Royal Society, has two honorary doctorates and has authored more than 360 papers and holds more than 70 patents. He received a bachelor’s, masters and doctorate from the Cavendish Laboratory, Cambridge, all in physics.Dr. Tehrani is Director of Analog and Mixed Signal Technologies at Freescale Semiconductor (formerly the semiconductor division of Motorola, Inc.). His R&D team is responsible for the development of power, analog, RF, sensor, and magneto-resistive random access memory (MRAM) technologies. Dr. Tehrani became a Motorola Fellow in 2000 and a Freescale Semiconductor Fellow in 2006. He has co-authored more than 80 articles in refereed journals, given more than 20 invited presentations at various international conferences, and has 75 issued patents. He received a bachelor’s from the University of North Carolina, Charlotte and a masters and doctorate in electrical engineering from the University of Florida, Gainesville.
Stephen Forrest, Richard Friend and Ching Tang have amassed a substantial list of accomplishments in the field of light-emitting diodes. The three Noble Award co-recipients have conducted pioneering research with organic light-emitting diodes (OLEDs) that has resulted in the development and quick commercialization of flat-panel displays. Their work is present in today’s state of the art high definition televisions and also is beginning to be incorporated in common portable electronic devices. Today, more than 85 companies have brought flat-panel displays to market as a result of the developments driven by these three gentlemen. OLED displays are becoming increasingly popular and also are beginning to replace small liquid crystal displays (LCDs) in handheld electronics such as cell phones, MP3 players and digital cameras because they consume less power, are thinner and lighter and can be made using inexpensive manufacturing processes such as inkjet printing. OLEDs also have exceptional video image qualities that have enhanced the quality of solid-state general lighting.
An IEEE Fellow, Dr. Forrest is the William Gould Dow Collegiate Professor in Electrical Engineering; Professor in the Departments of Electrical Engineering and Computer Science, Materials Science and Engineering, and Physics; and Vice President for Research at the University of Michigan in Ann Arbor, MI, and previously received the IEEE Lasers and Electro-Optics Society William Streifer Scientific Achievement Award.
Dr. Friend was knighted by the Queen of England for services to physics in 2003 and is a professor at the University of Cambridge’s Cavendish Laboratory in the United Kingdom. Dr. Friend is a Fellow of the Royal Society, Fellow of the Royal Academy of Engineering, and received the Hewlett-Packard Prize from the European Physical Society.
Dr. Tang is Doris Johns Cherry Professor of Chemical Engineering at the University of Rochester in Rochester, N.Y., and senior research associate and group leader of OLED Research at Eastman Kodak Research Laboratories. Dr. Tang is a Fellow of the American Physical Society, a Fellow of the Society for Information Display, and a member of the National Academy of Engineering.
A full professor of electrical and computer engineering at the University of Colorado, Carlos A. Paz de Araujo’s groundbreaking work led to the development of integrated circuit-embedded FeRAMs used in smart cards, electronic money and other products that have revolutionized how people live.
As a founder of RAMTRON and chairman and founder of Symetrix Corporation, both in Colorado Springs, Colorado, he identified SrBi2Ta203 (SBT), the ferroelectric material used in the most advanced FeRAMs. This material resolves the fatigue problem and fabrication difficulties in these memory chips and ensures that stored information is retained even after power is switched off after more than 100 billion erase and rewrite operations.
Using technology similar to SBT, Dr. Paz de Araujo and his colleagues were the first to use ferroelectric thin-films as a high-k capacitor for cellular phones, integrated on a set of gallium arsenide chips. The resulting devices were 50 times smaller and drew only a fraction of the power of their predecessors. This chip set technology was a major factor in enabling the compact size of today’s cellular telephones and has been incorporated into hundreds of millions of cellular phones currently in use al over the world. Working with scientists at Matsushita Electric Industry Company in Japan, Dr. Paz de Araujo then adapted SBT technology to contactless smart cards that permit information to be continuously upgraded during use. At the present, smart cards are used for applications ranging from railway and toll-road passes to corporate security cards, drivers’ licenses, telephone cards and RFID smart tags
The ferroelectric memories Dr. Paz de Araujo developed permit a write speed of 60 billionths of a second with very little degradation after more than 100 billion erase-and-write operations. He and his Symetrix colleagues have since worked to increase memory density for mobile connected devices such as wireless handhelds and third-generation cell phones.
Dr. Paz de Araujo is the editor of The Journal of Integrated Ferroelectrics, and chairman of the International Symposium on Integrated Ferroelectrics. He has edited two books on integrated ferroelectrics, holds 176 patents and is the author or coauthor of more than 286 papers on ferroelectrics.
He has bachelor’s, master’s and doctoral degrees in electrical engineering from the University of Notre Dame in South Bend, Indiana.
Dr. David L. Harame led the development of the world's first successful silicon germanium (SiGe) technology generally available for analog and communications circuits used in wireless communications equipment, optical network interfaces,GPS and cellular telephones. Dr. Harame was the first to make SiGe devices using ultra high-vacuum chemical vapor deposition to deposit the SiGe layer. The technologies he developed and later installed in IBM's Essex Junction, Vermont manufacturing facility in 1998, set records for the performance of silicon bipolar transistors and is still running in high volume today. Based on his work, SiGe HBTs now exceed frequencies of 390 GHz. This enables products based on existing compound semiconductor technology to be replaced with higher-performance,lower-power and lower-cost SiGe HBT technology commonly used in many products containing high-frequency analog circuits such as cell phone, WLAN, high-speed test and fiber optic applications.
An IEEE and IBM Fellow, Dr. Harame has received two IBM Outstanding Innovation Awards.
Dr. Larry J. Hornbeck, a TI Fellow and an employee of Texas Instruments since 1973, invented the Digital Micromirror Device (DMD) in 1987 and led its development. A microchip that enables all-digital, source-to-eye projection, the DMD revolutionized projection displays. Thanks to its small size, high brightness and exceptional image fidelity, stability and reliability, many of the world's top display manufacturers market projectors and big-screen TVs based on the DMD microchip for conference rooms, home entertainment, large venues, and digital cinema.
An IEEE Member and International Society for Optical Engineering (SPIE) Fellow, Dr. Hornbeck has received numerous awards, including an Emmy from the Academy of Television Arts & Sciences, and the David Sarnoff Medal Award from the Society of Motion Picture and Television Engineers. The author or co-author of 27 publications, Dr. Hornbeck holds 32 U.S patents.
Regarded as the "father of surface emitting semiconductor lasers" (VCSELs), Kenichi Iga's work has significantly impacted high-speed communications. Since his first demonstration of a VCSEL in 1979 at the Tokyo Institute of Technology, he has established the fundamental technical and theoretical bases for the lasers and inspired much research in the field. Today, approximately 75% of all telecommunications lasers sold are VCSELs, mostly for Gigabit Ethernet and fiber channels. Professor Iga is the author of several books, including Fundamentals of Microoptics and Surface Emitting Lasers, and numerous papers.
A Fellow of the IEEE; the Optical Society of America; and the Institute of Electronics, Information and Communication Engineers of Japan, he has received many honors including the IEEE Lasers and Electro-Optics Society William Streifer Award for Scientific Achievement, the Asahi Prize and Japan's Purple Ribbon Medal. He is Professor Emeritus of the Tokyo Institute of Technology, executive director of the Japan Society for the Promotion of Science and a guest professor of Kogakuin University.
Dr. Masataka Nakazawa has been at the forefront of optical communications throughout much of his career. His best-known innovation resulted from his pumping scheme for erbium-doped fibers using 1.48 µm InGaAsP laser diodes. It led to the construction of the pioneering, compact EDFA, spawning thousands of optical transmission experiments and facilitating Internet protocol over wavelength-division multiplexed technology. A Fellow of the IEEE, Optical Society of America, Institute of Electronics, Information and Communication Engineers of Japan (IEICE) and Nippon Telegraph and Telephone Corporation, he holds 100 patents and has published more than 300 papers.
His numerous awards include the IEE Electronics Letters Premium Award, two Outstanding Achievement Awards of the IEICE and an Outstanding Research Award from Japan’s Ministry of Science and Technology Agency. Dr. Nakazawa is a professor at the Research Institute of Electrical Communication of Tohoku University in Miyagi-Ken, Japan.