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Numonyx Makes Stackable Phase-Change Memory

Stacking thin-film devices could lead to denser, faster memories

3 min read

17 November 2009—A new type of memory based on phase-change materials that can be stacked in layers could lead to much denser memory chips at lower costs, according to the researchers at Intel and Numonyx who developed it.

"We think it's quite a significant breakthrough," says Greg Atwood, a senior technology fellow at Numonyx who is working on the memory with Intel researchers. Numonyx is a Swiss joint venture of Intel and STMicrolectronics.

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The Transistor at 75

The past, present, and future of the modern world’s most important invention

2 min read
A photo of a birthday cake with 75 written on it.
Lisa Sheehan

Seventy-five years is a long time. It’s so long that most of us don’t remember a time before the transistor, and long enough for many engineers to have devoted entire careers to its use and development. In honor of this most important of technological achievements, this issue’s package of articles explores the transistor’s historical journey and potential future.

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