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Shrink cell view during migration

Hi,

Is there a way to shrink the cell view to certain resolution.

I was doing process migration from 45 to 65nm. After migrating and mapping all the via, inst and devices, noticed that the devices in new technology was obviously smaller than original tech file. In the other hand, shapes such as polygon, rect, path will remain the same.

Is there a way to do the shrinking for a cell view?

Regards,

How

Parents

Andrew Beckett over 16 years ago

You could just scale all the coordinates and attributes of the objects in the cellView. I have the code below (which is very old) which I've used for similar things in the past. You'd probably need to adapt it though, in particular if you've already sorted out the instances. It's not going to be easy though, and even then the results are probably not going to be design rule correct.

/* abScale.il

Author     A.D.Beckett
Group      Structured Custom, Cadence Design Systems Ltd
Machine    SUN
Date       1995 
Modified   
By         

Various scaling routines to aid change of DBUPerUU

***************************************************

SCCS Info: @(#) abScale.il 11/20/08.15:26:20 1.1

*/

/***************************************************************
*                                                              *
*                (abScaleNumber number factor)                 *
*                                                              *
*             Scale a number by the scale factor.              *
*                                                              *
***************************************************************/

(procedure (abScaleNumber number factor)
  (times number factor))

/***************************************************************
*                                                              *
*                     (abScalePoint point)                     *
*                                                              *
*  Scale a point. Note that it inherits the variable factor.   *
*                                                              *
***************************************************************/

(procedure (abScalePoint point)
  (list (times (xCoord point) factor)
	(times (yCoord point) factor)))

/***************************************************************
*                                                              *
*               (abScalePointList points factor)               *
*                                                              *
*           Scale a list of points by a scale factor           *
*                                                              *
***************************************************************/

(procedure (abScalePointList points factor)
  (mapcar 'abScalePoint points))

/***************************************************************
*                                                              *
*                  (abScaleObject obj factor)                  *
*                                                              *
*              Scale an object by a scale factor               *
*                                                              *
***************************************************************/

(procedure (abScaleObject obj factor)
  (case (dbGetq obj objType)
	("arc" 
	 (dbSetq obj (abScalePointList (dbGetq obj ellipseBBox) factor) ellipseBBox)
	 )
	("dot" 
	 (dbSetq obj (abScaleNumber (dbGetq obj height) factor) height)
	 (dbSetq obj (abScaleNumber (dbGetq obj width) factor) width)
	 (dbSetq obj (abScalePoint (dbGetq obj xy)) xy)
	 )
	("donut" 
	 (dbSetq obj (abScaleNumber (dbGetq obj outerRadius) factor) outerRadius)
	 (dbSetq obj (abScaleNumber (dbGetq obj innerRadius) factor) innerRadius)
	 (dbSetq obj (abScalePoint (dbGetq obj xy)) xy)
	 )
	("ellipse"
	 (dbSetq obj (abScalePointList (dbGetq obj bBox) factor) bBox)
	 )
	("label" 
	 (dbSetq obj (abScaleNumber (dbGetq obj height) factor) height)
	 (dbSetq obj (abScalePoint (dbGetq obj xy)) xy)
	 )
	("line"
	 (dbSetq obj (abScalePointList (dbGetq obj points) factor) points)
	 )
	("path"
	 (dbSetq obj (abScalePointList (dbGetq obj points) factor) points)
	 (dbSetq obj (abScaleNumber (dbGetq obj width) factor) width)
	 (dbSetq obj (abScaleNumber (dbGetq obj beginExt) factor) beginExt)
	 (dbSetq obj (abScaleNumber (dbGetq obj endExt) factor) endExt)
	 )
	("polygon"
	 (dbSetq obj (abScalePointList (dbGetq obj points) factor) points)
	 )
	("rect"
	 (dbSetq obj (abScalePointList (dbGetq obj bBox) factor) bBox)
	 )
	("mosaic"
	 (dbSetq obj (abScalePoint (dbGetq obj xy)) xy)
	 (dbSetq obj (abScaleNumber (dbGetq obj maxExtension) factor) maxExtension)
	 (dbSetq obj (abScaleNumber (dbGetq obj uX) factor) uX)
	 (dbSetq obj (abScaleNumber (dbGetq obj uY) factor) uY)
	 )
	("inst"
	 (dbSetq obj (abScalePoint (dbGetq obj xy)) xy)
	 )
	))

/***************************************************************
*                                                              *
*              (abScaleObjectList objList factor)              *
*                                                              *
*          scale a list of objects by a scale factor           *
*                                                              *
***************************************************************/

(procedure (abScaleObjectList objList factor)
  (foreach object objList (abScaleObject object factor)))

/***************************************************************
*                                                              *
*               (abScaleAllObjects view factor)                *
*                                                              *
*             scale all the objects in a cellview              *
*                                                              *
***************************************************************/

(procedure (abScaleAllObjects view factor)
  (abScaleObjectList (dbGetq view instances) factor)
  (abScaleObjectList (dbGetq view shapes) factor)
  (abScaleObjectList (dbGetq view mosaics) factor)
  )

The argument to abScaleAllObjects is a cellView ID.

Best Regards,

Andrew.

Reply

Andrew Beckett over 16 years ago

/* abScale.il

Author     A.D.Beckett
Group      Structured Custom, Cadence Design Systems Ltd
Machine    SUN
Date       1995 
Modified   
By         

Various scaling routines to aid change of DBUPerUU

***************************************************

SCCS Info: @(#) abScale.il 11/20/08.15:26:20 1.1

*/

/***************************************************************
*                                                              *
*                (abScaleNumber number factor)                 *
*                                                              *
*             Scale a number by the scale factor.              *
*                                                              *
***************************************************************/

(procedure (abScaleNumber number factor)
  (times number factor))

/***************************************************************
*                                                              *
*                     (abScalePoint point)                     *
*                                                              *
*  Scale a point. Note that it inherits the variable factor.   *
*                                                              *
***************************************************************/

(procedure (abScalePoint point)
  (list (times (xCoord point) factor)
	(times (yCoord point) factor)))

/***************************************************************
*                                                              *
*               (abScalePointList points factor)               *
*                                                              *
*           Scale a list of points by a scale factor           *
*                                                              *
***************************************************************/

(procedure (abScalePointList points factor)
  (mapcar 'abScalePoint points))

/***************************************************************
*                                                              *
*                  (abScaleObject obj factor)                  *
*                                                              *
*              Scale an object by a scale factor               *
*                                                              *
***************************************************************/

(procedure (abScaleObject obj factor)
  (case (dbGetq obj objType)
	("arc" 
	 (dbSetq obj (abScalePointList (dbGetq obj ellipseBBox) factor) ellipseBBox)
	 )
	("dot" 
	 (dbSetq obj (abScaleNumber (dbGetq obj height) factor) height)
	 (dbSetq obj (abScaleNumber (dbGetq obj width) factor) width)
	 (dbSetq obj (abScalePoint (dbGetq obj xy)) xy)
	 )
	("donut" 
	 (dbSetq obj (abScaleNumber (dbGetq obj outerRadius) factor) outerRadius)
	 (dbSetq obj (abScaleNumber (dbGetq obj innerRadius) factor) innerRadius)
	 (dbSetq obj (abScalePoint (dbGetq obj xy)) xy)
	 )
	("ellipse"
	 (dbSetq obj (abScalePointList (dbGetq obj bBox) factor) bBox)
	 )
	("label" 
	 (dbSetq obj (abScaleNumber (dbGetq obj height) factor) height)
	 (dbSetq obj (abScalePoint (dbGetq obj xy)) xy)
	 )
	("line"
	 (dbSetq obj (abScalePointList (dbGetq obj points) factor) points)
	 )
	("path"
	 (dbSetq obj (abScalePointList (dbGetq obj points) factor) points)
	 (dbSetq obj (abScaleNumber (dbGetq obj width) factor) width)
	 (dbSetq obj (abScaleNumber (dbGetq obj beginExt) factor) beginExt)
	 (dbSetq obj (abScaleNumber (dbGetq obj endExt) factor) endExt)
	 )
	("polygon"
	 (dbSetq obj (abScalePointList (dbGetq obj points) factor) points)
	 )
	("rect"
	 (dbSetq obj (abScalePointList (dbGetq obj bBox) factor) bBox)
	 )
	("mosaic"
	 (dbSetq obj (abScalePoint (dbGetq obj xy)) xy)
	 (dbSetq obj (abScaleNumber (dbGetq obj maxExtension) factor) maxExtension)
	 (dbSetq obj (abScaleNumber (dbGetq obj uX) factor) uX)
	 (dbSetq obj (abScaleNumber (dbGetq obj uY) factor) uY)
	 )
	("inst"
	 (dbSetq obj (abScalePoint (dbGetq obj xy)) xy)
	 )
	))

/***************************************************************
*                                                              *
*              (abScaleObjectList objList factor)              *
*                                                              *
*          scale a list of objects by a scale factor           *
*                                                              *
***************************************************************/

(procedure (abScaleObjectList objList factor)
  (foreach object objList (abScaleObject object factor)))

/***************************************************************
*                                                              *
*               (abScaleAllObjects view factor)                *
*                                                              *
*             scale all the objects in a cellview              *
*                                                              *
***************************************************************/

(procedure (abScaleAllObjects view factor)
  (abScaleObjectList (dbGetq view instances) factor)
  (abScaleObjectList (dbGetq view shapes) factor)
  (abScaleObjectList (dbGetq view mosaics) factor)
  )

The argument to abScaleAllObjects is a cellView ID.

Best Regards,

Andrew.

Children

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