Thursday, September 27, 2007

US Patent 7274078 - Vertically oriented nanotube fabric switch

The use of carbon nanotubes as mechanical switches has been significantly developed by Nantero but most of the configurations call for patterned ribbons formed horizontally to a substrate. This patent teaches an alternative of vertically grown nanotube switches which may be more easily fabricated. Claim 1 reads:

1. An electro-mechanical device, comprising: a structure having a major horizontal surface and a channel formed therein, the channel having first and second wall electrodes defining at least a portion of first and second vertical walls of the channel; first and second nanotube articles vertically suspended in the channel and in spaced relation to a corresponding first and second wall electrode, and electromechanically deflectable in a horizontal direction toward or away from the corresponding first and second wall electrode in response to electrical stimulation.