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Create mulitpart path with 2 row of contacts

kbhow

Hi All,

Can we create a multipart path with 2 rows of contact? I was trying to customise the multipart path for 2 row of contact but failed. If there is way, how to do that, and what are the setting i needs to change?

Very thanks.

Rgds,

How

  • You should be able to define two different sets of sub-rectangles with different offsets from the centerline of the path.

     Derek

  •  Hi How,

    I agree with Derek - the subpart for the rectangles will only create a single row/line so if you want two then create one on one side of the master path and another on the other side - effectively each will have the same values except the separation value will be +/- sep. If you are using the rodCreatePath() SKILL function, then in the ?subRect argument list there will be two subrectangle argument lists, one with ?sep with a positive value and the other with ?sep with a negative value.

    Hope it helps,

    Lawrence.

  • Hi kbhow,  The following code was written for tsmcN65nm dfm purpose.

    You can change the values and they can be passed through some techfile skill functions.

    I tried to get the dfm values from the techfile but I am in vain.

    Anyways, this code may not be efficient but can be sufficient for you to bring an idea...

    procedure(points(bbox dl1 dr1 dt1 db1)
      let( (ll ur llx urx lly ury X Y my_list)
              ll =  lowerLeft( bbox )
              ur = upperRight( bbox )
              llx = xCoord(ll)
              urx = xCoord(ur)
              X = urx-llx
              lly = yCoord( ll )
              ury = yCoord( ur )
              Y = ury - lly
              my_list = list( llx+(X/2.0):-db1+lly urx+dr1:-db1+lly dr1+urx:ury+dt1 -dl1+llx:dt1+ury -dl1+llx:lly-db1 llx+(X/2.0):-db1+lly)
      );let
    );proc

    procedure( union( bBoxList )
    let( ( llxList llyList urxList uryList minllx minlly maxurx maxury )
      llxList = foreach( mapcar bBox bBoxList xCoord( lowerLeft( bBox )))
      llyList = foreach( mapcar bBox bBoxList yCoord( lowerLeft( bBox )))
      urxList = foreach( mapcar bBox bBoxList xCoord( upperRight( bBox )))
      uryList = foreach( mapcar bBox bBoxList yCoord( upperRight( bBox )))
          minllx = apply( 'min llxList )
          minlly = apply( 'min llyList )
          maxurx = apply( 'max urxList )
          maxury = apply( 'max uryList )
          list( minllx:minlly maxurx:maxury )
      ) ; let
    ) ; procedure


    procedure(my_gring_p(dl dr dt db flag val tap t_val)

      for(j 0 val-1
          if(j==0 then w=0.17 else w=0.17+(0.23*j))
      )
    if(myForm~>AllSides~>value==

    nil then
      if(tap=="NTAP" then
          dl1 = dl + 0.26 +w/2
          dr1 = dr + 0.26 +w/2
          dt1 = dt + 0.26 +w/2
          db1 = db + 0.26 +w/2
      else
          dl1 = dl + 0.03 +w/2
          dr1 = dr + 0.03 +w/2
          dt1 = dt + 0.03 +w/2
          db1 = db + 0.03 +w/2
      );if
    else
      if(tap=="NTAP" then
          dl1=dr1=dt1=db1= t_val + w/2 + 0.26
      else
          dl1=dr1=dt1=db1= t_val + w/2 + 0.03
      );if
    );if

      if(flag=="Multiple" then
          foreach(box geGetSelSet()
              draw_ring_p(points(box~>bBox dl1 dr1 dt1 db1) val tap)
          );for
      else
      if(geGetSelSetCount()>1 then
          draw_ring_p(points(union(geGetSelSet()~>bBox) dl1 dr1 dt1 db1) val tap)
      else
          draw_ring_p(points(car(geGetSelSet()~>bBox) dl1 dr1 dt1 db1) val tap)
      );if       );if
    );pro

    procedure(draw_ring_p(points num tap)
    b1='()
    choose = list( list( ?layer list("M1" "drawing") ?enclosure  0.0 ?choppable t ?beginOffset -0.0 ?endOffset -0.0 )
    list( ?layer list("PP" "drawing") ?enclosure -0.03 ?choppable t ?beginOffset 0.0 ?endOffset 0.0 )
    list( ?layer list("NP" "drawing") ?enclosure -0.03 ?choppable t ?beginOffset 0.0 ?endOffset 0.0 )
    list( ?layer list("NW" "drawing") ?enclosure -0.26 ?choppable t ?beginOffset 0.0 ?endOffset 0.0 ) );listend

      if(tap=="NTAP" then
          l1 = list( nth(0 choose) nth(2 choose) nth(3 choose) )
      else
          l1 = list( nth(0 choose) nth(1 choose) )
      );if

      for(i 0 num-1
          if(i==0 then sep=-0.13 W=0.17 else sep=-0.13-(0.23*i)  W=0.17+(0.23*i))
    b1 = cons(list( ?layer list("CO" "drawing") ?width 0.09 ?length    0.09 ?choppable    t ?sep sep ?justification "left" ?space    0.15 ?beginOffset -0.07 ?endOffset -0.07 ?beginSegOffset 0.0 ?endSegOffset 0.0 ?gap "distribute" ) b1)
      );for

    rodCreatePath(
          ?cvId     deGetEditCellView()
          ?layer     list("OD" "drawing")
          ?width     W
          ?choppable     t
          ?pts         points
          ?encSubPath l1
          ?subRect    b1
           );rect
    );proc

    procedure(createRingForm()
     let((guardType myForm  enclosedBy )
     guardType = hiCreateRadioField(
                        ?name 'guardType
                ?choices list( "Single" "Multiple")
                ?defValue "Single" ); hiCreateRadioField

     enclosedBy = hiCreateFloatField(
              ?name 'enclosedBy
              ?defValue 0.5
              ?enabled nil
              )

     enclosedBy_l = hiCreateFloatField(
              ?name 'enclosedBy_l
              ?prompt "Left ... "
              ?defValue 1.0
              ?enabled t
              )

     enclosedBy_r = hiCreateFloatField(
              ?name 'enclosedBy_r
              ?prompt "Right ... "
              ?defValue 1.0
              ?enabled t
              )

     enclosedBy_t = hiCreateFloatField(
              ?name 'enclosedBy_t
              ?prompt "Top ... "
              ?defValue 1.0
              ?enabled t
              )

     enclosedBy_b = hiCreateFloatField(
              ?name 'enclosedBy_b
              ?prompt "Bottom ... "
              ?defValue 1.0
              ?enabled t
              )

     num_co     = hiCreateIntField(
              ?name 'num_co
              ?prompt "No. of Contact Rows ... "
              ?defValue 1
              )

     TAP        = hiCreateRadioField(
                        ?name 'TAP
                ?choices list( "NTAP" "PTAP")
                ?defValue "NTAP" ); hiCreateRadioField

     AllSides        = hiCreateBooleanButton(
                        ?name 'AllSides
                ?buttonText "AllSides"               ?defValue nil
                ?callback "if(myForm->AllSides->value then myForm->enclosedBy_l->enabled=myForm->enclosedBy_r->enabled=myForm->enclosedBy_t->enabled=myForm->enclosedBy_b->enabled=nil myForm->enclosedBy->enabled=t else myForm->enclosedBy_l->enabled=myForm->enclosedBy_r->enabled=myForm->enclosedBy_t->enabled=myForm->enclosedBy_b->enabled=t myForm->enclosedBy->enabled=nil)"
                         ); hiCreateRadioField

     myForm= hiCreateAppForm(
              ?name 'myForm
              ?fields list(
                       list(enclosedBy_l 0:0 260:25 200 )
                       list(enclosedBy_r 300:0 260:25 200 )
                       list(enclosedBy_t 0:30 260:25 200 )
                       list(enclosedBy_b 300:30 260:25 200 )
                       list(num_co 0:60 260:25 200)
                       list(guardType 0:90 260:25 200 )
                       list(TAP 300:90 260:25 200)
                       list(AllSides 0:120 260:25 200)
                       list(enclosedBy 300:120 260:25 200)
                       )
              ?formTitle "A SoC Guard Ring form ..."
              ?callback "my_gring_p(enclosedBy_l~>value enclosedBy_r~>value enclosedBy_t~>value enclosedBy_b~>value guardType~>value num_co~>value TAP~>value enclosedBy~>value)"
              ?buttonLayout 'OKCancelApply
              ?initialSize t
              )
     hiDisplayForm(myForm)
      );let
    );proc

    createRingForm()

    ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;ends here;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

     Best Regards...

    Prabhakar. K --- The ICL Engineer

    SoCtronics

     

     

  • Hi All,

    Really thanks a lot for the advice and great helping hands. Let's me have a try and return back if there is any issue.

    Thanks

    Rgds,

    How

  • One point to Prabhakar. It's really good practice to use a prefix (we recommend an uppercase prefix to avoid clashing with Cadence functions), in order to distinguish between various code. For example, if you and colleagues write various applications, there's quite a high chance of creating functions called things like points() or union(). If your functions were called SOCcreateGuardPoints() and SOCcreateGuardUnion(), there's much less chance of function clashes.

    Regards,

    Andrew.

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