MIT researchers create a super-fast, super-tough, super-slidey transistor and claim that in '10 to 20 years from now could change the world'

HardwareStorageSSDsMIT researchers create a super-fast, super-tough, super-slidey transistor and claim that in ‘10 to 20 years from now could change the world’When you purchase through links on our site, we may earn an affiliate commission.Here’s how it works.

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(Image credit: Samsung)

A photo of two Samsung NAND flash chips

A small team of researchers at MIT’s Materials Research Laboratory have developed a transistor that’s just as good as those used to make flash memory chips, but with the added advantage of not wearing away with use. Instead of the usual silicon-based engineering, this one is made from a ferroelectric material.

Flash memory has revolutionized the storage industry and you can buy extremely fast and capacious NVMe SSDs forrelatively little moneythese days. Despite all the advances in flash manufacturing, though, the technology still has one major issue—the tiny cells that store the digital information have a limited lifespan, as they wear away with each write/erase cycle.

So when theMassachusetts Institute of Technologyannounced (viaTom’s Hardware) that its Material Research Laboratory had created a transistor whichwon’twear away in this manner, it immediately caught my attention. Rather than employing some kind of variation of the commonly used silicon-based, field-effect transistor (FET), it’s all done with two thin layers of boron nitride, a ferroelectric transistor (FeFET).

When an electric field is applied, the layers slide over each other, changing the electrical properties of the material. The switching of the states takes place in nanoseconds, so that’s on par with what’s used in currentNAND flash memory(pdf warning), but the researchers discovered that the transistor could undergo 100 billion switches without degrading very much.

Professor Raymond Ashoori, who co-led theresearch work, said “When I think of my whole career in physics, this is the work that I think 10 to 20 years from now could change the world.” Professor Pablo Jarillo-Herrero, another associated with the work, said “This is one of the first, and perhaps most dramatic, examples of how very basic science has led to something that could have a major impact on applications.”

That certainly sounds like the discovery could really form the start of a new paradigm for flash memory and everything that uses it.

Of course, there’s a big caveat to all of this and it’s not just because it’s the classic “only in the laboratory” kind of discovery. The research team createdonetransistor and an average1 TB NVMe SSDcontains a fewtrillionof them, though current flash memory cells require multiple transistors to store just one bit.

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At the moment, mass-producing large wafers of chips from ferroelectric materials just isn’t possible so you’re not going to see super-slidey transistors powering yourgaming SSDsany time soon. But as Ashoori says, who knows what will happen in a decade or two? Maybe every chip we use will have billions of boron nitride layers, all furiously shuffling about, just so we can store the latest games for longer than ever before.

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