Monday, May 24, 2010

Seven atom transistor

Via nanowerk: "Nanotechnology researchers build transistor with just seven atoms".
"The Australian team has been able to fabricate an electronic device entirely out of crystalline silicon where we have replaced just seven individual silicon atoms with phosphorus atoms. That is amazing exactness.
"This is a huge technological achievement and it is a critical step to demonstrating that it is possible to build the ultimate computer - a quantum computer in silicon."
The technology for placing individual atoms on a surface, the scanning tunnelling microscope, has existed for two decades. But until now nobody has been able to use it to make atomic-precision devices capable of processing electronic inputs from the macroscopic world.

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