A simple technology for creating graphene chips on any substrate

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POSTER: computer news   ||    A SIMPLE TECHNOLOGY FOR CREATING GRAPHENE CHIPS ON ANY SUBSTRATE	DATE:2016-05-07
Today, the most simple method is considered graphene chemical vapor deposition on a substrate of copper foil.  But the easiest ways to create electronic circuits from graphene on this sandwich has not yet been invented.  Scheme of graphene must be no damage to separate from the foil and transfer to a material that does not conduct electricity.  Perhaps a way out of a difficult situation came up with the University of Illinois at Urbana-Champaign .  Group of university scientists introduced the "one-step" technology creation and transfer of graphene circuits on almost any substrate at room temperature. Graphene is still applied to the copper foil by evaporation, and then the following occurs.  The computer creates an image of required circuits (ICs) in the form of a simple shadow mask.  Then, the mask is carved on a standard commercial laser cutter.  After combining foil with graphene and mask the contours of the figure cut on the machine, oxygen-plasma cutting. After punching  holes in graphene through a mask on grfen rolled polymer film.  Subsequent for this etching removes the copper substrate and on the film remains pure graphene in a pattern chain.   For sheer simplicity are no less obvious limitations.  Element size on the graphene pattern obtained by the method shown above depends on the processability of the laser cutter.  Today, the commercial laser cutters can cut elements  less than 50 microns, whereas traditional lithography operates at tens nanometers.  In addition, scientists have yet to create a full graphene chip to convince the public and investors in the effectiveness of this technique. Related Products :

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