Raith pattern generator Problem again?

James Conway jwc at snf.stanford.edu
Mon Mar 8 09:28:49 PST 2004


Hello All,

Yes this is a problem with the pattern generator.  I will be also 
checking the LEO deflection section.

More later,

Jwc

Hatice Altug wrote:

>Hi,
>
>Gigi, do your broken patterns look like this? I got this results back in
>September when there was a problem with pattern generator. It showed up on
>random people and random writing sessions. For at least 2 weeks I suffered
>while nobody was having such a problem ( maybe my patterns are more complex
>than others) It has not been fixed until james and other users also start
>to have same problem. If you also have same broken type patterns I think it
>might be again same problem with pattern generator ?!
>
>Scott, also I remember now that I was getting overlapped patterns. It might
>be writing on the same spot so that you get one big blob instead of one
>(look at broken_pattern_1 in the attachment, overlaped area is overexposed
>and in some of them not even possible to resolve the pattern which is
>suppose to be 10 by 10 matrix of  dots)
>
>Since last time it showed on random people and on random writing sessions it
>is possible that tomorrow some people can say that they have very good
>results. I think maybe James can check if pattern generator OK?
>
>hatice
>
>
>----- Original Message ----- 
>From: "Luigi Scaccabarozzi" <scaccag at stanford.edu>
>To: "Hatice Altug" <altug at stanford.edu>
>Cc: <jwc at snf.Stanford.EDU>; <raith at snf.Stanford.EDU>
>Sent: Sunday, March 07, 2004 9:32 PM
>Subject: Re: Raith Results?
>
>
>  
>
>>HI Hatice,
>>yes, I found the same. Some patterns broken, some misplaced, and also
>>stitching error (but I was expecting the stitching since I could not align
>>properly: the system is too clean, it's hard to burn a spot @ 10 um ap.!).
>>Sorry I meant to send an email earlier, but I was busy.
>>In conclusion, I would not attempt any critical work with the system in
>>this state, and if other people had the same problem I think there's
>>really something wrong with the system, not with my sample.
>>James?
>>Gigi
>>
>>
>>    
>>
>
>  
>
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