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  3. Strongly connected pins inside pcells

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Strongly connected pins inside pcells

RVERP
RVERP over 2 years ago

I have a pcell where I create pins using rodCreateRect. I have multiple pins on top of each other and I want those to be strongly connected. They are all created with rodCreateRect and they are given the same netName and termName

Like this:

rodCreateRect(
?name "PIN1"
?layer "LAYER"
?width 1
?length 1
?netName "A"
?termName "A"
?pin t

rodCreateRect(
?name "PIN2"
?layer "LAYER"
?width 1
?length 1
?netName "A"
?termName "A"
?pin t

I order to do that they all must be pinFigs from the same pin, but how do I do that in this situation?

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  • Andrew Beckett
    Andrew Beckett over 2 years ago

    You can do it this way:

    PIN1=rodCreateRect(
      ?name "PIN1"
      ?cvId cv
      ?layer "Metal2"
      ?width 1
      ?length 1
      ?netName "A"
      ?termName "A"
      ?pin t
    )
    
    PIN2=rodCreateRect(
      ?name "PIN2"
      ?cvId cv
      ?layer "Metal3"
      ?width 1
      ?length 1
      ;?netName "A"
      ;?termName "A"
      ;?pin t
    )
    
    dbAddFigToPin(PIN1~>dbId~>pin PIN2~>dbId)

    I then checked on the support site and found exactly the same approach was described in this app note: Implementing Open Access Pin Connectivity Model in SKILL Pcells

    Andrew

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  • RVERP
    RVERP over 2 years ago in reply to Andrew Beckett

    Seems to work, thanks Andrew.

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  • FabianUSA
    FabianUSA over 1 year ago in reply to Andrew Beckett

    Hello

    In the case the multiple pins are created with the following code

    PIN1=rodCreateRect(
      ?name "PIN1"
      ?cvId cv
      ?layer "Metal2"
      ?width 1
      ?length 1
      ?netName "A"
      ?termName "A"
      ?pin t
    ?elementsX 3
    ?pinLabel t )

    How is it possible to make them strongly connected please?
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  • Andrew Beckett
    Andrew Beckett over 1 year ago in reply to FabianUSA

    Hi Fabian,

    You can't - you have to use the approach that I described earlier in the thread.

    Regards,

    Andrew

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