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Characterizing and mitigating the impact of process variations on phase change based memory systems

Wangyuan Zhang, Tao Li
2009 Proceedings of the 42nd Annual IEEE/ACM International Symposium on Microarchitecture - Micro-42  
In this paper, we take the first step toward characterizing the effect of process variation on PRAM and explore PV-aware design techniques.  ...  Our proposed circuit and two microarchtiecture techniques with system-level support reduce PRAM power by 44%, 59% and 57% and improve PRAM endurance by 27X, 277X and 268X, relative to PV-affected PRAM  ...  This is because thermal energy generated by a low resistance Joule heater (i.e. ) is limited.  ... 
doi:10.1145/1669112.1669116 dblp:conf/micro/ZhangL09 fatcat:tjkpak7v4fbi5d467jlxbpgtxm

Phase Change Memory Write Cost Minimization by Data Encoding

Azalia Mirhoseini, Miodrag Potkonjak, Farinaz Koushanfar
2015 IEEE Journal on Emerging and Selected Topics in Circuits and Systems  
Our work introduces a novel set of tools and methodologies for encoding data on PCM that optimizes its write performance. We develop a framework which exploits asymmetries in PCM read/write.  ...  To realize PCM's potential, there are a number of technical challenges that need to be addressed, including limited wear endurance and high energy consumption of bit writes.  ...  Heating the phase change material above a crystallization temperature by applying an average current with a wide duration pulse results in the set operation.  ... 
doi:10.1109/jetcas.2015.2398211 fatcat:ittklmlbu5fvzn2puflkbyk6vm

Microwave and Millimeter Wave Power Beaming

Christopher T. Rodenbeck, Paul I. Jaffe, Bernd H. Strassner II, Paul E. Hausgen, James O. McSpadden, Hooman Kazemi, Naoki Shinohara, Brian B. Tierney, Christopher B. DePuma, Amanda P. Self
2021 IEEE Journal of Microwaves  
In addition, a review of progress in scalable rectenna arrays for the reception of microwave power beaming shows sufficient maturity for new research to initiate on the ruggedization, productization, and  ...  This paper clarifies the basic principles of power beaming in simple terms, and proposes a benchmarking methodology for improving the comparative assessment of power beaming systems and technology.  ...  SPINDLE will test on-orbit structural deployment of a sub-scale version of the operational system. SPINDLE is designed to test deployment kinematics and deployed structural dynamics.  ... 
doi:10.1109/jmw.2020.3033992 fatcat:4bv5toa7uvhqnckz4jksx2z23q

Report from the third workshop on future directions of solid-state chemistry: The status of solid-state chemistry and its impact in the physical sciences

Mercouri G. Kanatzidis, Kenneth R. Poeppelmeier, Svilen Bobev, Arnold M. Guloy, Shiou-Jyh Hwu, Abdou Lachgar, Susan E. Latturner, Raymond, E. Schaak, Dong-Kyun Seo, Slavi C. Sevov, Andreas Stein (+56 others)
2008 Progress in Solid State Chemistry  
thank the over 65 participants for their thoughtful input, their time and energy writing the report, and their many and often provocative discussions, all of which culminated in the final report.  ...  We also thank the National Science Foundation for its financial support, and we thank Northwestern University for financial assistance and the supportive environment in which to host the meeting.  ...  In CD and DVD technology, the phasechange material (PCM) is heated with a focused write laser beam to crystallize a small section of the material, and change the local index of refraction.  ... 
doi:10.1016/j.progsolidstchem.2007.02.002 fatcat:ts6djuqdgjcppdff4552k4szm4