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How to copy and rotate a shape with special angle like 30 degree in skill coding?

richardyuan

Hello, 

I failed to search the manual and the forum to find a way to copy and rotate a shape I created with any agle like 15, 30, 45 etc.

I noticed some posts said that rotate with any angle may raise lithography issues. But in MEMS application, it's very popular to use all kinds of "strange" shapes. As the line/space is over 1um, the litho problem can be neglected. Then, what can I do in skill code?

 Thanks. 

Parents
  • richardyuan
    Hi  Andrew,
     
    I used the code below to make my pCell. I don't know why it doesn't work well for some special division of 360 degree.
     
     
    pcDefinePCell(list(ddGetObj("TTA") "ycRotate" "layout") 
        (   (p2_r1 float 300.0)    
    (p2_gapl float 280.0)
    (p2_gapa float 70.0)
    (p2_gapb float 25.0)

    (SETS int 20)

        ) 
        let((i x0 div_angle p2_base p2_rect p2_gap yctView
    pcInst  pcParameters pcParamProp pcLayer pcPurpose 
    ) ;local parameters 

    (pcLib = (pcCellView~>lib)) 

    ;Retrieve pCell parameters
    (pcParameters = ((pcCellView~>parameters)~>value)) 
    (pcPurpose = "drawing") 
    div_angle = 360/SETS

    (p2_base = dbCreateEllipse(pcCellView 
    list(4 pcPurpose) 
    list(((-p2_r1):(-p2_r1)) (p2_r1:p2_r1))
       )) 

    (p2_rect = dbCreateRect(pcCellView 
    list(64 pcPurpose) 
    list((p2_gapl:(-p2_gapb)) ((p2_gapl + 2*p2_gapa):p2_gapb))
       ))  
    yctView = dbOpenCellViewByType("Mic" "YCTemp" "layout" "maskLayout" "s")
    p2_gap = dbCopyFig(p2_rect yctView)

    for(i 2 SETS
    dbTransformCellView(yctView 1 div_angle)
    dbCopyFig(p2_gap pcCellView)
    ); for i
    dbClose(yctView)
        ); let
             
    ); Pcell define

Reply
  • richardyuan
    Hi  Andrew,
     
    I used the code below to make my pCell. I don't know why it doesn't work well for some special division of 360 degree.
     
     
    pcDefinePCell(list(ddGetObj("TTA") "ycRotate" "layout") 
        (   (p2_r1 float 300.0)    
    (p2_gapl float 280.0)
    (p2_gapa float 70.0)
    (p2_gapb float 25.0)

    (SETS int 20)

        ) 
        let((i x0 div_angle p2_base p2_rect p2_gap yctView
    pcInst  pcParameters pcParamProp pcLayer pcPurpose 
    ) ;local parameters 

    (pcLib = (pcCellView~>lib)) 

    ;Retrieve pCell parameters
    (pcParameters = ((pcCellView~>parameters)~>value)) 
    (pcPurpose = "drawing") 
    div_angle = 360/SETS

    (p2_base = dbCreateEllipse(pcCellView 
    list(4 pcPurpose) 
    list(((-p2_r1):(-p2_r1)) (p2_r1:p2_r1))
       )) 

    (p2_rect = dbCreateRect(pcCellView 
    list(64 pcPurpose) 
    list((p2_gapl:(-p2_gapb)) ((p2_gapl + 2*p2_gapa):p2_gapb))
       ))  
    yctView = dbOpenCellViewByType("Mic" "YCTemp" "layout" "maskLayout" "s")
    p2_gap = dbCopyFig(p2_rect yctView)

    for(i 2 SETS
    dbTransformCellView(yctView 1 div_angle)
    dbCopyFig(p2_gap pcCellView)
    ); for i
    dbClose(yctView)
        ); let
             
    ); Pcell define

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