Archived posting to the Leica Users Group, 1999/01/10

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Subject: [Leica] Re: Mechanical precision
From: Jim Brick <jim@brick.org>
Date: Sun, 10 Jan 1999 15:13:16 -0800

Very good post Alexey...

Thanks,

Jim

>>From: William Davis
>>
>>Yet Nikon and Canon still manufacture machines called steppers that
>>feature a lens that can focus down to a micron. They are used to etch
>>microchips.

>>Whenever you see news footage of people in bunny suits making>
>>microchips at Intel, they are usually working near a machine with a
>>Canon or Nikon logo. I have heard these machines described as some of
>>the most precise pieces of equipment made by mankind.

At 03:06 PM 1/10/99 +0000, Alexey wrote:

>Not true, as we'll see...
>
>Zeiss, too. But the winner in the mechanical motion control 
>is a company here in the Pacific Northwest. 
>
>Applied Precision Instruments in Seattle makes steppers with 
>a repeatable absolute accuracy of 10 nm over a greater than 20 mm 
>range of movement.
>
>...
>
>* Atomic Force Microscope
>..........................................................................
>Alexey Merz | URL: http://www.webcom.com/alexey | email: alexey@webcom.com
>