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layer map file for GDS transfer to virtuoso

oAwad

Hello all,

I have a GDS layout previously designed in SoC encounter, I want to import it in Virtuoso but I don't have a layer map provided with PDK (I'm using Nangate Open Cell Library 45nm). I now have two files; a technology file provided with PDK and a streamOut.map file generated from GDS export in Encounter. 

I need to understand the purpose of the map file and should I have provided it during GDS export in Encounter. If not, how to modify it for correct streamIn in Virtuoso.

 

Here is part of the technology file:

; Technology File NCSU FreePDK 45nm
;********************************
; LAYER DEFINITION
;********************************
layerDefinitions(
 techLayers(
 ;( LayerName                 Layer#     Abbreviation )
 ;( ---------                 ------     ------------ )
  ( IP                        63         IP )
  ( nwell                     3          nwell )
  ( pwell                     2          pwell )
  ( nimplant                  4          nimplant )
  ( pimplant                  5          pimplant )
  ( active                    1          active )
  ( vtg                       6          vtg )
  ( vth                       7          vth )
  ( thkox                     8          thkox )
  ( poly                      9          poly )
  ( contact                   10         contact )
  ( metal1                    11         metal1 )
  ( via1                      12         via1 )
  ( metal2                    13         metal2 )
  ( via2                      14         via2 )
  ( metal3                    15         metal3 )
  ( via3                      16         via3 )
  ( metal4                    17         metal4 )
  ( via4                      18         via4 )
  ( metal5                    19         metal5 )
  ( via5                      20         via5 )
  ( metal6                    21         metal6 )
  ( via6                      22         via6 )
  ( metal7                    23         metal7 )
  ( via7                      24         via7 )
  ( metal8                    25         metal8 )
  ( via8                      26         via8 )
  ( metal9                    27         metal9 )
  ( via9                      28         via9 )
  ( metal10                   29         metal10 )
  ( DRC                       400        DRC )
 ) ;techLayers
 techLayerPurposePriorities(
 ;layers are ordered from lowest to highest priority
 ;( LayerName                 Purpose    )
 ;( ---------                 -------    )
  ( IP                        drawing )
  ( nwell                     drawing )
  ( pwell                     drawing )
  ( nimplant                  drawing )
  ( pimplant                  drawing )
  ( active                    drawing )
  ( vtg                       drawing )
  ( vth                       drawing )
  ( thkox                     drawing )
  ( poly                      drawing )
  ( contact                   drawing )
  ( metal1                    drawing )
  ( via1                      drawing )
  ( metal2                    drawing )
  ( via2                      drawing )
  ( metal3                    drawing )
  ( via3                      drawing )
  ( metal4                    drawing )
  ( via4                      drawing )
  ( metal5                    drawing )
  ( via5                      drawing )
  ( metal6                    drawing )
  ( via6                      drawing )
  ( metal7                    drawing )
  ( via7                      drawing )
  ( metal8                    drawing )
  ( via8                      drawing )
  ( metal9                    drawing )
  ( via9                      drawing )
  ( metal10                   drawing )
  ( DRC                       drawing )
 ) ;techLayerPurposePriorities
 techDisplays(
 ;( LayerName    Purpose      Packet          Vis Sel Con2ChgLy DrgEnbl Valid )
 ;( ---------    -------      ------          --- --- --------- ------- ----- )
  ( IP           drawing      PacketName_0     t t t t t )
  ( nwell        drawing      PacketName_2     t t t t t )
-------------------------------------------------------------------------------------------------------------------
and here is part of my streamOut.map file generated by Encounter:
metal1 NET 1 0
metal1 SPNET 2 0
metal1 PIN 3 0
metal1 LEFPIN 4 0
metal1 FILL 5 0
metal1 FILLOPC 6 0
metal1 VIA 7 0
metal1 VIAFILL 8 0
metal1 VIAFILLOPC 9 0
metal1 LEFOBS 10 0
NAME metal1/NET 11 0
NAME metal1/SPNET 12 0
NAME metal1/PIN 13 0
NAME metal1/LEFPIN 14 0
via1 LEFPIN 15 0
via1 FILL 16 0
via1 FILLOPC 17 0
via1 VIA 18 0
via1 VIAFILL 19 0
via1 VIAFILLOPC 20 0
Any help would be appreciated 
Parents
  • you need the stream-in map, which should have come with the PDK. It's not the same format as the Encounter streamOut map. since this question is virtuoso-centric, maybe post to the Custom IC forum. There might be someone there who can tell you exactly what file to look for or where to find it.
Reply
  • you need the stream-in map, which should have come with the PDK. It's not the same format as the Encounter streamOut map. since this question is virtuoso-centric, maybe post to the Custom IC forum. There might be someone there who can tell you exactly what file to look for or where to find it.
Children
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