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Exporting GDS with groups intact layout

gkasap92

Hello,

I exported a GDS from Cadence which has 2 groups and I imported in Synopsys and to my amaze in the Synopsys does not show the groups (the pcells are not flat, so only the groups vanished)

My goal is to keep the group INTACT while exporting the GDS from Cadence and Importing in Synopsys, is there a way?

output of exporting:

Summary of Options :
library something
strmFile something.gds
topCell something
view layout
logFile strmOut.log
techLib theBest
layerMap theBest.layermap
objectMap theBest.objectmap
case Preserve
convertDot node
convertPcellPin geometry

Summary of Objects Translated:
Scalar Instances: 189
Array Instances: 10
Polygons: 12
Paths: 51
Rectangles: 990
Lines: 0
Arcs: 0
Donuts: 0
Dots: 0
Ellipses: 0
Boundaries: 1
Area Blockages: 0
Layer Blockages: 0
Area Halos: 0
Markers: 0
Rows: 0
Stitch: 0
Standard Vias 399
Custom Vias: 0
CdsGen Vias: 0
Pathsegs: 15
Text: 29
TextDisplay: 7
Cells: 139

cadence version:

virtuoso version ICADVM20.1-64b 10/11/2023 09:26 

thank you in advance

  • I'm not sure why you're amazed, because the stream format is rather elderly and doesn't have any record types to store group information, so information like this doesn't get written into the stream file. The focus is on physical geometries, and not much in the way of higher level data is stored.

    Andrew

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