Could modern, nanoscale vacuum tubes replace transistors?
Public Group active 2 years, 11 months agoOne of the topics we’ve covered multiple 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 other manufacturers still search for long-term solutions to this problem, no known next-generation technology is likely to restart silicon scaling and allow for coming back to traditional clock speed gains.
Researchers in the California Institute of Technology think might be have a solution to this problem — 1 involves returning to a early technology resolve the problems of existing methods. Vacuum tubes, as stated by Dr. Axel Scherer, may be key to improving transistor performance and lowering power consumption.
Chances are, when choice vacuum tubes, you involving old radios or possibly Aopen’s AX4B-533 “TubeAmp” system board. The systems that Dr. Scherer and his research team are working on are nothing beats classic vacuum tubes — according on the team, the structures are roughly 1,000x smaller in comparison human blood cell, which would make them 6–8nm. One problem with modern CPUs is simply because they suffer from significant numbers of electricity leakage — Scherer’s designs would use leakage current turnover states on purpose, thereby improving efficiency and capabilities.
One explanation for this research is that Scherer thinks the microprocessor teams scaling below 10nm will encounter complaints. The properties of silicon apparently change at that point, becoming both elastic and emitting light. “It’s a different material, therefore it gives you this different behavior,” Scherer told the new York Times when.
Can tubes replace transistors?
Dr. Scherer isn’t getting as much exercise reinvent the transistor or replace the silicon economy. Boeing is funding his research due to the potential applications in space and aviation technologies, and silicon will obviously function as gold standard for everyone for quite a while. It’s still interesting look at the question: Could such a fundamentally different technology, shrunk to a microscopic scale, solve issues of transistor scaling and performance?
Maybe — but there’s a involving problems become solved between here right now there. First, there’s the question of manufacturing — will any of us crank out tens of thousands of vacuum-based processors in per month? What does it cost to build these solutions, switch out manufacturing hardware, and build an ecosystem around these kinds of? 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, nevertheless the boring questions are what ultimately determine whether or not tech in order to market. All of us talk about Intel within build faster CPUs, it doesn’t mean silicon may be the fastest semiconductor ever. It means that Intel can’t find a method creating faster chips that’s cost-effective, scaleable, and likely to last multiple product several years.
Miniature vacuum tubes could evolve appropriate major driver of PC performance, particularly if they can be manufactured at scale, but the cost and manufacturing challenges are an enormous roadblock to any different technology establishing itself as a silicon player. Neither carbon nanotubes nor graphene have done so, despite huge initial hype. There’s something satisfying in the concept that a century-old technology could be adapted and improved to the point that it boosts modern computing, but it’s to be able to take so much of expensive work to prove it can do so.
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