Re: Finger Print Door Locks Busted!

[ian.bird@xxxxxxxxxxxxxx]

Probably. For the real thing i.e. circuits I print this top layer one
as a
mirror onto acetate and then make sure I get it on the copper the correct
way round. This gives a much cleaner edge to the etchings as the toner is
touching the PCB rather than being the acetate thickness away.






"Paul" <paul.britton@xxxxxxx>
Sent by: ukha_d@xxxxxxx
22/11/2006 22:40
Please respond to ukha_d


To:     <ukha_d@xxxxxxx>
cc:     (bcc: Ian Bird/CV/Novartis)
Subject:        Re: [ukha_d] Finger Print Door Locks Busted!


Could the missing step be making a negative image from the positive one,
so
that the copper etched the right way round, to give a 'positive' moulded
finger?


PaulB


----- Original Message -----
From: "Paul Gale" <groups@xxxxxxx>
To: <ukha_d@xxxxxxx>
Sent: Saturday, November 18, 2006 12:21 PM
Subject: RE: [ukha_d] Finger Print Door Locks Busted!


> Yeah - can't see what that could be - I only thought a thicker copper
> layer on the board would help...
>
> Paul.
>
>
>
>> -----Original Message-----
>> From: ukha_d@xxxxxxx [mailto:ukha_d@xxxxxxx] On Behalf
Of
>> Phil Harris
>> Sent: 18 November 2006 11:25
>> To: ukha_d@xxxxxxx
>> Subject: RE: [ukha_d] Finger Print Door Locks Busted!
>>
>>
>> I was just wondering what the "one step" didn't show on
doing the
etching
>> was...
>>





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