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 pin position problem 

Last post Thu, Aug 28 2008 6:16 AM by 290702500. 2 replies.
Started by 290702500 27 Aug 2008 12:20 AM. Topic has 2 replies and 2720 views
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  • Wed, Aug 27 2008 12:20 AM

    • 290702500
    • Not Ranked
    • Joined on Wed, Jul 16 2008
    • hangzhou, Zhejiang
    • Posts 8
    • Points 110
    pin position problem Reply

    hi everyone

    i encounter a problem

     when i abstract the stand cell lef and load into soc encounter, i find the yellow pin of the cell out of metal(the pin'metal). it can be DRC problem when do route.

    someone can help me how the yellow pin position from?

    thanks a lot!!

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    • Post Points: 20
  • Wed, Aug 27 2008 8:16 AM

    • BobD
    • Top 25 Contributor
    • Joined on Fri, Jul 11 2008
    • Chelmsford, MA
    • Posts 247
    • Points 9,125
    Re: pin position problem Reply

    The "yellow pin" that SoC-Encounter creates is a marking that approximates the location of the many pin geometries that define valid connection points for the router.  It is useful for doing quick flight line analysis of connections visually, but routers like NanoRoute do *not* consider the yellow pin a valid connection point.  Only the actual pin geometries are valid connection points, so it shouldn't seem like a major issue for the yellow pin to be a little misaligned with the physical pin shapes.

    Generally, I see the yellow pin on top of at least one pin geometry.  Are you seeing the yellow pin very far away in your case?  Maybe you could post a screen shot if it is far away and we could have a look.

     

     

    • Post Points: 20
  • Thu, Aug 28 2008 6:16 AM

    • 290702500
    • Not Ranked
    • Joined on Wed, Jul 16 2008
    • hangzhou, Zhejiang
    • Posts 8
    • Points 110
    Re: pin position problem Reply

    HI, BobD

    thanks first,

    but i donot know how to upload the screen shot.

    because i change the layout height of stand cell and move the cell origin down. and i find yellow pin out of metal has relationship with the metal1 pitch in the tech file.as i known "

    The cell height must be a multiple of the horizontal grid spacing; the cell width must be a multiple of the vertical grid spacing
    i  do as that,but the pin still out of metal.so what can i do? 
     thanks you again!!
    • Post Points: 5
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Started by 290702500 at 27 Aug 2008 12:20 AM. Topic has 2 replies.