Could modern, nanoscale vacuum tubes replace transistors?
Public Group active 2 years, 11 months agoOne of the topics we’ve covered many times at ExtremeTech is the difficulty of continuing to scale semiconductor technology, and the attached problem of improving chip performance without increasing clock speed. While Intel and also other manufacturers continue to search for long-term solutions to this problem, no known next-generation technology is likely to restart silicon scaling as well as for a return to traditional clock speed gains.
Researchers at the California Institute of Technology think could have an approach to this problem — 1 involves here we are at a very old technology to solve the problems of existing methods. Vacuum tubes, primarily based Dr. Axel Scherer, could key to improving transistor performance and lowering power consumption.
Chances are, when choice vacuum tubes, you think about old radios or possibly Aopen’s AX4B-533 “TubeAmp” system board. The systems that Dr. Scherer and his research team are working on are in contrast to classic vacuum tubes — according towards team, the structures are roughly 1,000x smaller in comparison human blood cell, which would make them 6–8nm. Recognize with modern CPUs simply because suffer from significant sums of electricity leakage — Scherer’s designs would use leakage current to flip states on purpose, thereby improving efficiency and overall performance.
One root-cause of this principals are that Scherer thinks the microprocessor teams scaling below 10nm will encounter problems. The properties of silicon apparently change in that point, becoming both elastic and emitting light. “It’s a different material, and it gives you this different behavior,” Scherer told brand new York Times.
Can tubes replace transistors?
Dr. Scherer isn’t trying to reinvent the transistor or replace the silicon economy. Boeing is funding his research due to its potential applications in space and aviation technologies, and silicon will obviously function as gold standard for everyone for next several years. It’s still interesting to consider the question: Could the fundamentally different technology, shrunk to a microscopic scale, solve the problems of transistor scaling and satisfaction?
Maybe — but there’s a associated with problems become solved between here presently there. First, there’s the question of manufacturing — can we crank out tens of thousands of vacuum-based processors in a month? What does it cost to build these solutions, switch out manufacturing hardware, and build an ecosystem around all of them with? Can they built quickly enough to maintain current production rates, therefore how will they integrate into existing product lines?
These may look like boring questions compared to a technology’s fundamental promise, however the boring questions are what ultimately determine whether or not tech in order to market. Many of us talk about Intel not being able to build faster CPUs, it doesn’t mean silicon is the fastest semiconductor ever. It indicates that Intel can’t locate a method of building faster chips that’s cost-effective, scaleable, and likely to last multiple product versions.
Miniature vacuum tubes could evolve into a major driver of PC performance, particularly if they can be manufactured at scale, nevertheless the cost and manufacturing challenges are an enormous roadblock to the different technology establishing itself as a silicon competitor. Neither carbon nanotubes nor graphene have done so, despite huge initial hype. There’s something satisfying in the notion that a century-old technology end up being adapted and improved to the point that it boosts modern computing, but it’s gonna be take an awful lot of expensive work to prove it would possibly do as.
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