Virtuoso - Export GDSII

[elektor]

uu/dbu meaning in cadence

Hi,

I use GDSII file from Silicon Ensemble. Now I know that this GDSII it is "layout does not include standard cells".
When I've put this file in Cadence CIW ( Import - Stream ) I've obtained warning : " (setup file ) - scale was not float " and nothing else.

I've tested a lot of possibilites ( UU/DBU ) - No effect..

Regards
Elektor

PS. When I've put DEF file from SE everything was ok, but when I've tried Export Stream , problem has come back ....

PS. Main obiective : Put "full" GDSII to Calibre DRC, because GDSII from SE doesn't work.

 

[napong]

gds scale uu/dbu

Before importing, you should have standard cells layout in CIW that have name correspond to you LEF in SE.
When you Import->Stream, add option retain library definition.
This option will search the cell name in CIW that match with the cell name from SE and use that cell in CIW as a standard cell.
Hope it could solve your problem.
napong.

 

[ttspice]

gdsii stream layer purpose spnet

I think SE only exports metal, via and cell outline....


# example of SE script
# gds2 out
#
OUTPUT GDSII MAPFILE "gds2.map" LIBNAME "top" STRUCTURENAME "top" FILE "top.gds" REPORTFILE "gds2out.jnl" UNITS Thousands ;


Just make sure your mapfile and units are correct, then import the gds
with standard cell libary as well.


# example of GDS map
#
# Silicon Ensemble 5.X Stream layer mapping table
#-----------------------------------------------------------------------------
#gds layer SE layer Layer object type
#==================================

15 CONT VIA;
16 METAL1 NET;
16 METAL1 VIA;
16 METAL1 SPNET;
17 VIA12 VIA;
18 METAL2 NET;
18 METAL2 VIA;
18 METAL2 SPNET;
27 VIA23 VIA;
28 METAL3 NET;
28 METAL3 VIA;
28 METAL3 SPNET;
62 NAME CELL ;
29 VIA34 VIA;
31 METAL4 NET;
31 METAL4 VIA;
31 METAL4 SPNET;'
32 VIA45 VIA;
33 METAL5 NET;
33 METAL5 VIA;
33 METAL5 SPNET;'
39 VIA56 VIA;
38 METAL6 NET;
38 METAL6 VIA;
38 METAL6 SPNET;'
21 VIA67 VIA;
22 METAL7 NET;
22 METAL7 VIA;
22 METAL7 SPNET;'

 

[siboy]

virtuoso gdsii

What's the meaning of "via""net""spnet" after each metal layer?
Thanks!

 

[sayuri]

Re: gds scale uu/dbu

Before importing, you should have standard cells layout in CIW that have name correspond to you LEF in SE.
When you Import->Stream, add option retain library definition.
This option will search the cell name in CIW that match with the cell name from SE and use that cell in CIW as a standard cell.
Hope it could solve your problem.
napong.

thank you for the suggestions, I done the second point and it's works, but I still have some missing layer, like all metal layer except METAL4.

when I generate the stream file, I generate the lef file to, but I don't know how to make sure your first suggestion.