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  3. Not allowing Dynamic shape on etch layer

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Not allowing Dynamic shape on etch layer

OEMTIM
OEMTIM over 7 years ago

I have a 4 layer design that I thought looked good but I keep getting DRC errors about all of my pins being to close to GND and/or 5V.

Looking into it my plane shapes are static and all of my pins are connected to both planes.

When I make them Dynamic they move from the Etch Class to the Boundary Class.

If I try to redraw the planes as dynamic on the Etch they automatically appear on the boundary class in the subclass I chose for the etch layer (draw ETCH/POWER and appears as BOUNDARY/POWER).

I can redraw as static and they appear on the right layer but the second I switch it to dynamic it does the same thing.

Any help would be appreciated.

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  • redwire
    redwire over 7 years ago

    The shape size matters -- so be sure to set it in the shape global properties or right mouse on the shape and set its individual properties.  If the shape is larger than the minimum prescribed then you have a problem with DRCs that is causing the shape manager to remove part or all of the shape.

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  • OEMTIM
    OEMTIM over 7 years ago in reply to redwire

    It seems the plane shape is there and dynamic and shows fine outside my Deign outline. But once I place it inside the design outline the shape is empty.  

    I can not figure out what is blocking the plane from showing up.

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  • Anil CAD
    Anil CAD over 7 years ago in reply to OEMTIM

    In Color dispaly switch on all layers, I guess there is some Route keepout shape is preventing Dynamic copper to flood. or if you see the DRC when the shape was static, it will clearly tell you, "Shape to Route keep out spacing error" 

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  • steve
    steve over 7 years ago in reply to OEMTIM

    Without seeing the actual board, it looks like your Shape to Pin/Via values are set incorrectly (very large). So check Constraint Manager - Spacing rules for Pin to Shape etc. I'd also check the Shape Global Params - Clearances tab and make sure there are no overrides of a large value.

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  • OEMTIM
    OEMTIM over 7 years ago in reply to steve

    Thanks All!!  Steve I had the clearances set to high. 

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