IEEE Magnetics Society Santa Clara Valley Chapter

The objective of the Santa Clara Valley Chapter of the IEEE Magnetics Society is to sponsor local seminars and publicize conferences, workshops and other information of interest to the Society's local members and technical people in the area of applied magnetics.

Upcoming 2009 meetings   June September Please note that starting in September 2008, the chapter meetings will begin at 7:30 PM (Cookies, Converstation and Pizza too at 7 PM) [ Click here for a PDF version of this announcement ] [ Click here for abstracts of past meetings: | 2006 | 2007 | 2008 | 2009 |  ( 200K )  ] [ Chapter officers and contacts - click here ]

 

IEEE and IDEMA links:
IEEE Magnetics Society	[ Bay Area e-GRID ]	[ Santa Clara Valley Section ]

[ San Francisco Section ]	[Oakland / East Bay Section]	[ IDEMA ]	[ Magnetic Disk Heritage Center ]

 

 

Tuesday, June 23rd, 2009  Western Digital, 1710 Automation Parkway, San Jose, CA Directions and Map Cookies, Conversation & Pizza too at 7:00 P.M.  Presentation at 7:30 P.M. MRAM: A New Spin Prof. Jian-Gang (Jimmy) Zhu Data Storage Systems Center, Carnegie Mellon University Abstract Although dubbed as the future universal memory, magnetoresistive random access memory (MRAM) has had limited commercial success, partly because the field-driven magnetic state switching requires relatively high power consumption. New designs utilizing spin transfer torque (STT) might greatly expand storage capacity since the required power for switching a single bit is substantially reduced. STT-MRAM with perpendicular magnetic electrodes is particularly promising since it could provide critically needed scalability such that a single memory chip could be capable of storing billions of bits.. The talk will provide an in-depth review on the development path of MRAM technology over the past decade and a prospective of the near future.

Biography Prof. Jimmy Zhu Dr. Jian-Gang (Jimmy) Zhu is the Director of the Data Storage Systems Center at Carnegie Mellon University. He is a full Professor in the Department of Electrical and Computer Engineering and holds the endowed chair of ABB Professorship in the College of Engineering. Dr. Zhu is also a Cheung Kong Chair Professor at Huazhong University of Science and Technology, China. He is an elected IEEE Fellow. Professor Zhu received his B.S. degree in Physics from Huazhong University of Science and Technology in China in 1982, M.S. degree and Ph.D. degrees, both in Physics, from the University of California at San Diego in 1983 and 1989, respectively. Prior coming to Carnegie Mellon University, Professor Zhu was a faculty member in the Department of Electrical and Computer Engineering at University of Minnesota from 1990 to 1996 and was granted the McKnight-Land Grant professorship in 1993. He has authored and co-authored over 250 publications in various major technical journals and has presented over 50 invited papers in various major international technical conferences. He was a recipient of the 1993 NSF Presidential Young Investigator Award. He had been on the Advisory Editorial Board for the Journal of Magnetism and Magnetic Materials, North-Holland, Elsevier from 1998 to 2008. He was IEEE Distinguished Lecturer in 2004. Contact: Professor Jimmy Zhu, Data Storage System Center, Dept of Electrical & Computer Engineering, Carnegie Mellon University, Pittsburgh, PA; Website: http://www.ece.cmu.edu/~jzhu/ E-mail: jzhu@ece.cmu.edu

 

 

Tuesday, September 15th, 2009  Western Digital, 1710 Automation Parkway, San Jose, CA Directions and Map Cookies, Conversation & Pizza too at 7:00 P.M.  Presentation at 7:30 P.M. A Model for Noise Power versus Density in a Perpendicular Digital Magnetic Recording System H. Neal Bertram Western Digital Abstract Noise power versus linear density in a perpendicular recording system exhibits an unusual behavior. At the lowest densities the noise initially increases linearly with density. At a medium density, given by the transition parameter, the curves approximately level until about twice the initial curvature point. Above that secondary point the noise power then increases and eventually levels. In this talk a simple explanation for this behavior is presented. The key phenomenon is the trade off of DC-AC noise versus transition noise levels. At low densities the transition noise dominates and yields the linear increase with density. At the first critical density where the noise flattens the transition noise begins to decrease and the DC noise increases becoming AC erasure noise. The net leveling is the sum of these two effects. At the second critical density the transition noise has vanished and the further increase is dominated by the high density AC erased noise. This theory will be published in: H.N. Bertram and M. E. Schabes, IEEE Trans Magn., Aug 2009

Biography H. Neal Bertram Biography: Dr. Bertram received his B.A. from Reed College in Portland, OR in 1963 and his Ph.D. at Harvard University in Cambridge, MA in 1968. From 1968 to 1985 he was employed by the Ampex Corporation in Redwood City, CA where he worked on fundamental problems in magnetic tape recording. In 1985 he joined the University of California at San Diego as an Endowed Chair Professor in the Electrical Engineering and Computer Sciences Department associated with the (then) newly created Center for Magnetic Recording Research. At UCSD, Dr. Bertram directed a research program in the physics of magnetic recording, including studies of polycrystalline thin film media, magnetoresistive heads, and fine particle tape systems. In addition Dr. Bertram has created graduate courses in magnetic recording theory, analysis of recording materials, and magnetic recording measurements. In Dec. 2005 he became an emeritus professor and moved to Northern California. From 2005-2009 Dr. Bertram worked part time for the Hitachi Corporation and visited CMRR monthly. Currently he is employed by Western Digital part time. At WD Professor Bertram evaluates signal, noise, thermal effects and BER. In 1986, Dr. Bertram was a IEEE Distinguished Lecturer, and in 1987 he was named an IEEE Fellow. He has published a book entitled "Theory of Magnetic Recording" (Cambridge University Press, March 1994). In 1999 he received the annual technical achievement award from INSIC (International Storage Industry Consortium). In 2003 Dr. Bertram won the IEEE Reynolds B. Johnson Information Storage Award. Dr. Bertram was cited for "fundamental and pioneering contributions to magnetic recording physics research." Contact: H. Neal Bertram; E-mail: nbertram@ucsd.edu

IEEE Santa Clara Valley Magnetics Section: Officers for 2009