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Elongated hole

Former Member

Hi,

I'm designing a circuit that requires a long thin slot (6x1 mm) in a pad for

a relay terminal, has anyone come up with a solution for this?

 

Thanks,

Rob

 

 

 

  • Rob wrote:

    Hi,

    I'm designing a circuit that requires a long thin slot (6x1 mm) in a pad for

    a relay terminal, has anyone come up with a solution for this?

     

    Thanks,

    Rob

     

     

    Search for slot in user and in support for detailed threads on the

    subject. The short answer. Use the milling layer and contact your board

    house.

    Paul R.

     

  • "Paul Romanyszyn" <pgr@arcelectronicsinc.com> wrote in message

    news:hg37k0$d5v$1@cheetah.cadsoft.de...

    Rob wrote:

    Hi,

    I'm designing a circuit that requires a long thin slot (6x1 mm) in a pad

    for a relay terminal, has anyone come up with a solution for this?

     

    Thanks,

    Rob

    Search for slot in user and in support for detailed threads on the

    subject. The short answer. Use the milling layer and contact your board

    house.

    Paul R.

     

    A warning to this issue if the hole is plated: (a useful warning can not be

    repeated too often)

    If you use milling layer on plated holes, take care if you use fill's or

    power layers somewhere between upper and lower layer. If you have that,

    either make sure it doesnt fill under the plating, or tell the manufacturer

    to make sure the plating doesnt make shorts.

    By always giving the manufacturer a netlist with test points (like

    ipc-d-356), the manufacturer will find problems like that before he starts

    manufacturing.

     

     

     

  • Morten Leikvoll wrote on Mon, 14 December 2009 04:04

    If you use milling layer on plated holes,

     

    Note that whether internally routed slots are plated depends on the fab

    process, and you will get different results with different manufacturers or

    will have to pay extra to get what you want.

     

    Quote:

    take care if you use fill's or

    power layers somewhere between upper and lower layer. If you have that,

     

    either make sure it doesnt fill under the plating, or tell the

    manufacturer

    to make sure the plating doesnt make shorts.

     

    Or just set up the DRC rules properly in the first place so that there is

    clearance between planes and board edges.

    --

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