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Is substrate thickness specified in the Gerber file?
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interpasha@hotmail.com
electronics forum beginner


Joined: 09 Jun 2006
Posts: 4

PostPosted: Sat Jun 17, 2006 3:27 pm    Post subject: Is substrate thickness specified in the Gerber file? Reply with quote

Hi,
I am trying to manufacture several 2-layer boards on FR4 with different
thicknesses.
0.8mm, 0.4mm etc.
My software (Eagle from Cadsoft) lets me specify substrate thickness in
the design rules.
However, I can't find any trace of the this info in the produced Gerber
files.
Is substrate thickness supposed to be in the gerbers, or supplied
separately?

Thanks,
Pavel
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Peter Bennett
electronics forum Guru Wannabe


Joined: 15 May 2005
Posts: 210

PostPosted: Sat Jun 17, 2006 5:28 pm    Post subject: Re: Is substrate thickness specified in the Gerber file? Reply with quote

On 17 Jun 2006 08:27:34 -0700, interpasha@hotmail.com wrote:

Quote:
Hi,
I am trying to manufacture several 2-layer boards on FR4 with different
thicknesses.
0.8mm, 0.4mm etc.
My software (Eagle from Cadsoft) lets me specify substrate thickness in
the design rules.
However, I can't find any trace of the this info in the produced Gerber
files.
Is substrate thickness supposed to be in the gerbers, or supplied
separately?

Thanks,
Pavel


You have to specify the board thickness separately. You may also have
to list the drill tool codes and associated hole sizes.

Your artwork should have a thin track on at least one copper layer
showing the desired outline of the board.




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JeffM
electronics forum Guru


Joined: 02 May 2005
Posts: 1007

PostPosted: Sat Jun 17, 2006 7:54 pm    Post subject: Re: Is substrate thickness specified in the Gerber file? Reply with quote

Quote:
My software (Eagle from Cadsoft)
lets me specify substrate thickness in the design rules.
However, I can't find any trace of the this info
in the produced Gerber files.
Is substrate thickness supposed to be in the gerbers,
or supplied separately?
Pavel (interpasha @ hotmail.com)

A previous, related thread:
http://groups.google.com/group/sci.electronics.cad/browse_frm/thread/61e4ae2e59063e59/25d5cc06ff6cbc44?q=alternatezone+dimensions+*-*-*-*-readme.txt-file-with-your-gerbers+zz-zz+qq+alignment+Fabrication-Information+Warp-*-twist+checklist
..
..
FYI, Google Groups has made their Reply frame ~15% too wide.
They let you continue to type on a line all the way over,
but when they post it, they break that line
by inserting a carriage return after ~72 characters.

Your submission may thus look choppier than you expected.
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interpasha@hotmail.com
electronics forum beginner


Joined: 09 Jun 2006
Posts: 4

PostPosted: Sat Jun 17, 2006 10:02 pm    Post subject: Re: Is substrate thickness specified in the Gerber file? Reply with quote

It looks like I have to specify the thickness separately,
Thanks for the help!

JeffM wrote:
Quote:
My software (Eagle from Cadsoft)
lets me specify substrate thickness in the design rules.
However, I can't find any trace of the this info
in the produced Gerber files.
Is substrate thickness supposed to be in the gerbers,
or supplied separately?
Pavel (interpasha @ hotmail.com)

A previous, related thread:
http://groups.google.com/group/sci.electronics.cad/browse_frm/thread/61e4ae2e59063e59/25d5cc06ff6cbc44?q=alternatezone+dimensions+*-*-*-*-readme.txt-file-with-your-gerbers+zz-zz+qq+alignment+Fabrication-Information+Warp-*-twist+checklist
.
.
FYI, Google Groups has made their Reply frame ~15% too wide.
They let you continue to type on a line all the way over,
but when they post it, they break that line
by inserting a carriage return after ~72 characters.

Your submission may thus look choppier than you expected.
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Google

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