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Stop Mask Error - Silk Layer

autodeskguest

I am getting the Stop Mask error on DRC because the silk screen layer and

text is overlapping the stopmask. Can I keep this and send to board

manufacturer, for automated assembly (maybe without silkscreen on the board)

or should I correct? I would be a big trouble to correct.

 

Thiago

 

 

 

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  •  

    Robert Pearce" <news@bdt-home.demon.co.uk> escreveu na mensagem

    news:S9G6BYF1mhZLFwPv@daniel.huneausware.local...

    On Sun, 31 Jan 2010, Thiago Henrique Rodrigues wrote to us saying :

     

    I see. Please check the picture attached. I resized the silkscreen frame,

    it

    is inside the Stop Mask. What do you suggest? To resize the stop mask

    also?

     

    I would suggest doing the silk screen frame like most of the Eagle

    libraries. That is, the bits which should be clear of the stop mask (two

    short parallel lines) should be on the tPlace layer, while the bits that

    overlap the stop mask should be on the tDocu layer. This allows the

    designer to see the whole outline when placing components, but by

    excluding tDocu and bDocu from the CAM job you send a trouble-free silk

    screen to your board house. This does need a bit more up-front care and

    effort in creating library parts, but it makes life easier in the long

    run.

    --

    Rob Pearce                       http://www.bdt-home.demon.co.uk

     

    The contents of this | Windows NT crashed.

    message are purely   | I am the Blue Screen of Death.

    my opinion. Don't    | No one hears your screams.

    believe a word.      |

     

     

    I switched the silk frame from tPlace to tDocu layer. The DRC is no longer

    generating errors. I hope this is ok for the pcb house.

     

     

     

Reply

  •  

    Robert Pearce" <news@bdt-home.demon.co.uk> escreveu na mensagem

    news:S9G6BYF1mhZLFwPv@daniel.huneausware.local...

    On Sun, 31 Jan 2010, Thiago Henrique Rodrigues wrote to us saying :

     

    I see. Please check the picture attached. I resized the silkscreen frame,

    it

    is inside the Stop Mask. What do you suggest? To resize the stop mask

    also?

     

    I would suggest doing the silk screen frame like most of the Eagle

    libraries. That is, the bits which should be clear of the stop mask (two

    short parallel lines) should be on the tPlace layer, while the bits that

    overlap the stop mask should be on the tDocu layer. This allows the

    designer to see the whole outline when placing components, but by

    excluding tDocu and bDocu from the CAM job you send a trouble-free silk

    screen to your board house. This does need a bit more up-front care and

    effort in creating library parts, but it makes life easier in the long

    run.

    --

    Rob Pearce                       http://www.bdt-home.demon.co.uk

     

    The contents of this | Windows NT crashed.

    message are purely   | I am the Blue Screen of Death.

    my opinion. Don't    | No one hears your screams.

    believe a word.      |

     

     

    I switched the silk frame from tPlace to tDocu layer. The DRC is no longer

    generating errors. I hope this is ok for the pcb house.

     

     

     

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