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In a word first, researchers from Tohoku University have successfully developed a technology to stack magnetic tunnel junctions (MTJ) directly on the vertical interconnect access (via) without causing deterioration to its electric/magnetic characteristics. The via in an integrated circuit design is a small opening that allows a conductive connection between the different layers of a semiconductor device.This new discovery will be particularly significant in reducing the chip area of spin-transfe ...
In today's computer chips, memory management is based on what computer scientists call the principle of locality: If a program needs a chunk of data stored at some memory location, it probably needs the neighboring chunks as well.But that assumption breaks down in the age of big data, now that computer programs more frequently act on just a few data items scattered arbitrarily across huge data sets. Since fetching data from their main memory banks is the major performance bottleneck in  ...
The current memory landscape spans from venerable DRAM to hard disk drives to ubiquitous flash. But in the last several years PCM has attracted the industry's attention as a potential universal memory technology based on its combination of read/write speed, endurance, non-volatility and density. For example, PCM doesn't lose data when powered off, unlike DRAM, and the technology can endure at least 10 million write cycles, compared to an average flash USB stick, which tops out at 3,000 w ...