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Gerber files for the power planes

autodeskguest

Hi,

 

I generated the gerber files for my 4 layer PCB using 'gerb274x-4layer' cam

job. The inner two layers are gnd & power plane respectively.  But when I

view the gerber files for the inner layer, I dont see it flooded with

copper. Is this how it is supposed to be ?  I am able to see the copper pour

on the top and bottom layers.

 

While importing the files to cam viewer, I get the warning ' 0 size aperture

used' . Should I ignore it? How can this be corrected ?

 

I am new to PCB layout, so I apologize if my question are very amatuer.

 

Thank you.

 

Regards,

Ashwath

 

 

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  • Ashwath Pavithran wrote:

    Hi,

     

    I generated the gerber files for my 4 layer PCB using 'gerb274x-4layer'

    cam job. The inner two layers are gnd & power plane respectively.  But

    when I view the gerber files for the inner layer, I dont see it flooded

    with copper. Is this how it is supposed to be ?  I am able to see the

    copper pour on the top and bottom layers.

     

    While importing the files to cam viewer, I get the warning ' 0 size

    aperture used' . Should I ignore it? How can this be corrected ?

     

    I am new to PCB layout, so I apologize if my question are very amatuer.

     

    Thank you.

     

    Regards,

    Ashwath

    If you have the inner layer check as power then the gerber output is

    inverted. So what is drawn is the areas that have no copper.

    You have to set your viewer to compensate. Not sure on the 0 size problem.

    If you need any traces on the inner layer use a normal layer and

    polygons for the fill as it is much simpler to see what you have that way.

    Paul R.

     

Reply

  • Ashwath Pavithran wrote:

    Hi,

     

    I generated the gerber files for my 4 layer PCB using 'gerb274x-4layer'

    cam job. The inner two layers are gnd & power plane respectively.  But

    when I view the gerber files for the inner layer, I dont see it flooded

    with copper. Is this how it is supposed to be ?  I am able to see the

    copper pour on the top and bottom layers.

     

    While importing the files to cam viewer, I get the warning ' 0 size

    aperture used' . Should I ignore it? How can this be corrected ?

     

    I am new to PCB layout, so I apologize if my question are very amatuer.

     

    Thank you.

     

    Regards,

    Ashwath

    If you have the inner layer check as power then the gerber output is

    inverted. So what is drawn is the areas that have no copper.

    You have to set your viewer to compensate. Not sure on the 0 size problem.

    If you need any traces on the inner layer use a normal layer and

    polygons for the fill as it is much simpler to see what you have that way.

    Paul R.

     

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