Gordon,

You may try focussed ion beam. I undersand it is possible to drill a hole
down to 5nm using FIB. You may contact FIB International (408)  567-8068
and their web site is: www.fibinternational.com

ami chand


Ami Chand, Physics Department, University of California, Santa Barbara
CA 93106, USA,  Tel : 805 - 893 - 3999 ( Lab ), 805 - 893 - 8089 ( Off),
Fax: 805 - 893 - 8315.


On Wed, 2 Sep 1998, unifieduniverse wrote:

>
>
> ----------
> > From: unifieduniverse 
> > To: [email protected]
> > Subject: Can you drill a 3 nanometer diameter hole?
> > Date: Monday, August 31, 1998 3:29 PM
> >
> > Dear N. I. Sinitsyn:
> >
> > We are trying to fabricate a device.  We need to be able to drill 3 or 4
> > nanometer diameter holes in 5 or 5.1 nanometer thick carbon films or
> > formvar or iridium foil.  None of our electron microscope contacts can do
> > this.  Presumably it needs a coherent electron microscope through
> coherent
> > field emission tip, or coherent electron microscope through nanotube
> > electron source.  We are willing to pay for this service with American
> > dollars.  Can you do it?  What do you bid for one hole in one film?  For
> > one hole each in 40 films?
> >
> > Respond as soon as you can.  Or refer us to someone else you think might
> be
> > able to do this.
> >
> > Thanks.
> >
> > Sincerely yours,
> >
> > Gordon Ziegler, President
> > Coherent Electron Source, LLC
> > 4401 37th Ave SE #17
> > Lacey, WA 98503, USA
> >
> > phone (360) 459-3209
> >
> > fax (360) 459-3705
> >
> > e-mail  [email protected]
>
>