Electromechanical Switches Could Reduce Future Computers' Cooling Needs

Earthquake Retrofit writes "Science Daily is reporting that researchers at Case Western Reserve University have taken the first step to building a computer capable of operating in extreme heat. Te-Hao Lee, Swarup Bhunia and Mehran Mehregany have made electromechanical switches — building blocks of circuits — that can take twice the heat that would render electronic transistors useless. 'The group used electron beam lithography and sulfur hexafluoride gas to etch the switches, just a few hundred nanometers in size, out of silicon carbide. The result is a switch that has no discernable leakage and no loss of power in testing at 500 degrees Celsius. A pair of switches were used to make an inverter, which was able to switch on and off 500,000 times per second, performing computation each cycle. The switches, however, began to break down after 2 billion cycles and in a manner the researchers do not yet fully understand. ... Whether they can reach the point of competing with faster transistors for office and home and even supercomputing, remains to be seen. The researchers point out that with the ability to handle much higher heat, the need for costly and space-consuming cooling systems would be eliminated.'"

Re:Steampunk

[tomhudson]

[X] I would have gotten first post if I hadn't been stuck with one of those 0.5 megaHURTz "computing devices", you insensitive clod!

Oops - gotta go - the device has a lifetime expectancy of only 1 hour, 7 minutes even at this slow speed.

Next time, I'll boot up that old 4.77 mhz PCjr.

Two billion cycles

[Skapare]

... is easily explained. There is a flaw in the design. Someone apparently made the "wear out expiration" register signed instead of unsigned.