Prof. Gabriel Rebeiz University of California, San Diego (UCSD)
Title : Entering the Directive Communications and Sensors Era for SATCOM and 5G/6G Using Advanced Silicon Beamformer ICs
Affordable phased-arrays, built using low-cost silicon chips, have become an essential technology for high data-rate terrestrial (5G) systems to their high gain, electronically steerable patterns, narrow beamwidths, high tolerance to interference and adaptive nulling capabilities. They have also become the backbone of all LEO and MEO satellites both at the payload level and at the user-terminal. High performance phased-array systems at X-band to Ka-band with analog and digital beamforming capabilities and with multiple beams are now available at low-cost, both on the ground for user terminals and on the satellites. These advances are reshaping our communication and sensor systems, as we work to change our world from the Marconi-Era driven by low-gain antenna systems to the Directive Communications era where every antenna, every beam, every sensor is electronically steered. This talk summarizes our work in this area and conclude with future 5G-Advanced and 6G where every device will be connected at Gbps speeds.
Prof. Gabriel M. Rebeiz is Member of the National Academy (elected for his work on phased-arrays) and is a Distinguished Professor and the Wireless Communications Industry Endowed Chair at the University of California, San Diego. He is an IEEE Fellow and is the recipient of the IEEE MTT Microwave Prize (2000, 2014, 2020) all for phased-arrays. His 2x2 and 4x4 RF-beamforming architectures are now used by Renesas, ADI, NXP, Infineon, Sivers, Qualcomm, Intel, Samsung, Boeing and others, and most companies developing communication and radar systems. All SATCOM affordable phased-arrays are based on his work and architectures. He has published 900 IEEE papers with an H-index of 102 and has graduated 122 PhD students including the former CEO of Qualcomm and several VPs in the communications and defense industry.
Dr. Jie Jay Sun Taiwan Semiconductor Manufacturing Company (TSMC)
Title: Silicon Technology Evolution for 5G Cellular Communication and beyond
In this ~ 35 min presentation, I will go over trends, challenges and TSMC process technology solutions & technology roadmaps of key RF integrated circuits of 5G smartphones, namely modem, RF TRx, mmWave RF FEM and sub 6GHZ RF FEM.
Education
Ph.D., Electrical Engineering, North Carolina State University, Raleigh, NC, USA
MS, Electrical Engineering, North Carolina State University, Raleigh, NC, USA
B.E., Electronic Engineering, Tsinghua University, Beijing, China
Experience
Director, Fab Supply Chain and Engineering, Cirrus Logic
Senior Manager of Foundry Engineering, Silicon Labs
Dr. Jie Jay Sun joined TSMC in 2018 and currently serves as Director of RF and Analog Business Development. Prior to this role, Dr. Sun was Director of Fab Supply Chain and Engineering at Cirrus Logic, responsible for supply chain operations and foundry technology engagement. Before his position at Cirrus, he was senior foundry engineering manager at Silicon Labs. Dr. Sun also held various engineering positions at Motorola semiconductor products sector (now part of NXP) and Advanced Micro Devices.
Jie Jay Sun received his bachelor's degree from Tsinghua University in Beijing, China and his Master’s and Ph.D. from North Carolina State University, Raleigh, NC, USA, all in Electrical Engineering.
Dr. Jing-Hong Conan Zhan MediaTek
Title: Silicon mmWave Systems – Retrospect & Future
The talk starts from introducing basic properties and applications of millimeter wave. The history how millimeter-wave systems evolved from assembled by discrete component to highly integrated in silicon will be described next. Recent systems are used as examples to demonstrate silicon integration even at this frequency is commercially viable. The last part of this talk covers potential future millimeter-wave applications.
Education – EE BS 1996, National Tsing Hua University, HsinChu, Taiwan. – EE MS 1997, National Tsing Hua University, HsinChu, Taiwan. – EECS PhD 2004, Cornell University, Ithaca, NY, USA. Industrial Experience – 1999 – 2001: Optical storage RTL designer, MediaTek, HsinChu, Taiwan. – 2004 – 2006: Senior design engineer, Communication Research Lab, Intel, Hillsboro, Oregon. – 2006 – now: RF design, MediaTek, HsinChu, Taiwan. Other contributions – 2011 – 2014; 2019 – 2023 : IEEE ISSCC TPC – 20+ US patents; 40+ journal and conference papers
Prof. James C. M. Hwang Cornell University
Title: Efficient and Stable Activation by Microwave Annealing of a Silicon Nanostructure Doped with Phosphorus Above its Solubility Limit
The relentless scaling of semiconductor devices pushes the doping level far above the equilibrium solubility, yet the doped material must be sufficiently stable for device fabrication and operation. For example, in epitaxial silicon doped above the solubility of phosphorus, most phosphorus dopants are compensated by vacancies, and some of the phosphorus-vacancy clusters can become mobile around 700 °C to further reduce doping efficiency. For efficient and stable doping, we use microwave annealing to selectively activate metastable phosphorus-vacancy clusters by interacting with their dipole moments, while keeping lattice heating below 700 °C. For a 30-nm-thick silicon layer doped with 3 × 1021 cm−3 phosphorus, a microwave energy of 12 kW at 2.45 GHz for 6 min resulted in a free electron concentration of 4 × 1020 cm−3 and a junction more abrupt than 4 decades/nm. The doping profile is stable with ＜ 4% variation after thermal annealing around 700 °C for 5 min. Thus, microwave annealing can result in not only efficient activation and abrupt profile in epitaxial silicon similar to that demonstrated in ion-implanted silicon, but also thermal stability.
James Hwang is a professor in the Department of Materials Science and Engineering at Cornell University. He graduated from the same department with a Ph.D. degree. After years of industrial experience at IBM, Bell Labs, GE, and GAIN, he spent most of his academic career at Lehigh University. He cofounded GAIN and QED; the latter became the public company IQE and remains the world's largest compound-semiconductor epitaxial wafer supplier. He has been a consultant for the US Air Force Research Laboratory since 1989. He used to be a Program Officer at the U.S. Air Force Office of Scientific Research for GHz-THz Electronics.
He used to be a visiting professor at Cornell University in the US, Marche Polytechnic University in Italy, Nanyang Technological University in Singapore, National Yang Ming Chiao Tung University in Taiwan, and Shanghai Jiao Tong University in China. He is an IEEE Life Fellow and an editor for the IEEE Transactions on Microwave Theory and Techniques. He has published approximately 400 refereed technical papers and been granted eight U.S. patents. He has researched the design, fabrication and characterization of electronic, opto-electronic, and micro-electromechanical devices and circuits. His current research focuses on materials and devices above 110 GHz for 6G wireless communications.
