MRAMs to Power Cell Phones

Spin i Reversed Below the EquatorThe Memory Guy today became aware of a significant breakthrough in magnetic memory technologies (MRAM) that could prove to be a big bonus for mobile applications.  These memories could be used to generate power as well as to store data.

Scientists have only recently become aware of an oversight stemming from the fact that nearly all spin magnetics research has been performed in the northern hemisphere.  Just as the water in a drain rotates counterclockwise in the northern hemisphere but clockwise in the southern hemisphere, the Coriolis Effect dictates that magnetic spin has the opposite sense above the equator as below.

This surprise finding was made when researchers from Stüdpfalz University of Blindman’s Bluff, Iowa, brought samples of an STT MRAM they had developed to the Townsville City Metropolitan University in Queensland, Australia, where researchers have been producing similar magnetic memories below the equator.  Until that moment neither team had thought to question the Continue reading “MRAMs to Power Cell Phones”

New Memory Bonding Technique Shows Promise

Spider Attaching Bonding Wires on Multi-Chip StacksIn a new cross-disciplinary effort, researchers have developed a novel approach to attach bonding wires to stacks of memory chips.  The new technique, being called a “breakthrough” by its developers, promises to allow chips to be stacked to several times their current 8-chip and 16-chip heights.

At issue is the challenge of precisely bonding wires a fraction of the diameter of a human hair over great distances without their inadvertently coming into contact with their neighbors to create a short circuit.  Such a short could destroy one or more of the chips in the stack, rendering the entire stack useless.  The mechanical means of attaching these wires, although highly sophisticated, still has significant issues, that limit the economics of higher stacks.

Researchers at the Berea University of Geology (BUG) in Berea, Kentucky, noticed that certain Continue reading “New Memory Bonding Technique Shows Promise”