منابع مشابه
Exploring the limits of phase change memories
Phase change materials are among the most promising compounds in information technology. They can be very rapidly switched between the amorphous and the crystalline state, indicative for peculiar crystallization behaviour. Phase change materials are already employed in rewriteable optical data storage, where the pronounced difference of optical properties between the amorphous and crystalline s...
متن کاملStaircase-down SET programming approach for phase-change memories
This paper presents a staircase-down SET programming technique for phase-change memories (PCMs). The proposed programming approach allows compensating for spreads in cell physical parameters and obtaining adequately narrow cell distributions, which results in improved read margin. The cell programming curve is experimentally evaluated and discussed. The effectiveness of the proposed technique i...
متن کاملPhase Change Memory: Rewritable Optical Disks and Electronic non-volatile memories
Phase change memory of atomic order (Crystalline)-disorder(Amorphous) phase change phenomena was found by S. R. Ovshinsky(Energy Conversion Devices, Inc.) called “Ovonic Memory. GeSbTe and AgInSbTe material systems are used in commercial optical disks, and GeSbTe is commonly used in semiconductor memories. Million overwrite phase change technology enabled rewritable DVD (Digital versatile disk)...
متن کاملExploring the Potential of Phase Change Memories as an Alternative to DRAM Technology
Scalability poses a severe threat to the existing DRAM technology. The capacitors that are used for storing and sensing charge in DRAM are generally not scaled beyond 42nm. This is because; the capacitors must be sufficiently large for reliable sensing and charge storage mechanism. This leaves DRAM memory scaling in jeopardy, as charge sensing and storage mechanisms become extremely difficult. ...
متن کاملCross talk in phase-coded holographic memories
Received June 14, 1993; revised manuscript received July 27, 1993; accepted August 2, 1993 The cross talk between holograms multiplexed with Walsh-Hadamard phase codes is analyzed. Each hologram is stored with a reference beam that consists of N phase-coded plane waves. The signal-to-noise ratio (SNR) is calculated for a recording schedule for which the center of each stored image coincides wit...
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ژورنال
عنوان ژورنال: Journal of Electrical & Electronic Systems
سال: 2013
ISSN: 2332-0796
DOI: 10.4172/2332-0796.1000e110