Would like to share my Innovus map file

[egiacomin]

I just finished a design and created the Innovus map file by hand to be able to export my .gds and import it sucessfully on Virtuoso. I've checked the skywater-pdk/vendor/synopsys/PlaceRoute/common but none of the provided file were compatible with Innovus. What would be the best way to share this file? Should I do a pull request and add it to the skywater-pdk/vendor/synopsys/PlaceRoute/common folder?

[nguyendao-uom]

Hi @egiacomin, I'm also looking for the Innovus map file. Can you share it here? Thanks

[egiacomin]

Here is the one I used @nguyendao-uom. Let me know if you run into any issues when using it!

# CADENCE Stream layer mapping table for Skywater130nm
# <t_ layerObjectName> <t_ objectType> <n_ layerNum> <n_ datatype>

poly        NET, SPNET, VIA     66  20
poly        PIN                             66  16
licon1  VIA                             66  44
licon1  PIN                             66  41
licon1   NET                            66  58
li1         NET, SPNET, VIA     67  20
li1         PIN                             67  16
mcon        VIA                             67  44
mcon        PIN                             67  41
mcon        NET                             67  58
met1        NET, SPNET, VIA     68  20
met1        PIN                             68  16
via         VIA                             68  44
via         PIN                             68  41
via         NET                             68  58
met2        NET, SPNET, VIA     69  20
met2        PIN                             69  16
via2        VIA                             69  44
via2        PIN                             69  41
via2        NET                             69  58
met3        NET, SPNET, VIA     70  20
met3        PIN                             70  16
via3        VIA                             70  44
via3        PIN                             70  41
via3        NET                             70  58
met4        NET, SPNET, VIA     71  20
met4        PIN                             71  16
via4        VIA                             71  44
via4        PIN                             71  41
via4        NET                             71  58
met5        NET, SPNET, VIA     72  20
met5        PIN                             72  16

[mithro]

We should totally figure out a process for getting this into the SkyWater PDK....

[nguyendao-uom]

Thanks @egiacomin, It seems OK for exporting gds file from Innovus, but doesn't show up all drawing layers (only Pin and via layers) when stream in Virtuoso. Do you have a tech file for importing the gds file?

[mithro]

BTW There is a #cadence-innovus channel on the SkyWater Slack channel that might be able to help.

[egiacomin]

@nguyendao-uom I have access to the original PDK with the technology library, so I simply created a new library, attached it to the skywater technology_library and imported my GDS without any layer mapping file. What procedure did you follow?

@mithro should I do a pull request to add the file under the skywater-pdk/vendor/synopsys/PlaceRoute/common directory? Or do you have something else in mind?

[nguyendao-uom]

@egiacomin : you mean the s8 pdk from skywater? I don't have the access to it.

[egiacomin]

@nguyendao-uom yes. Have you been able to import any standard cell GDS successfully by any chance? If yes, what mapfile/techfile did you use?

[nguyendao-uom]

We have TSMC, UMC technologies only. And, of course, we have the NDA for the access.

[ghost]

Hi @egiacomin. I'm trying to import SOFA FPGA's gds files into Virtuoso or Custom Compiler. By using your map file it successfully imports the gds into Virtuoso. And there seems correct layer names and colours at the section of layer names. However in layout there are only some vias and small rectangulars. Unable to see standart cells of sky130 and top view of SOFA FPGA's. Can you describe more detailed way how to attach tecnology file and where can I find this technology library? Thanks.

[m-usama-z]

Hi. I've a question about the layer map file used for exporting GDS from Innovus: There are some purpose numbers mentioned in the skywater layer info excel sheet, which are not mentioned in the above layer map file, e.g. 13, 10, 60, 0, 14, 25 and 15. Would the absence of these purpose numbers in the map file cause issues in fabrication?

[m-usama-z]

Kindly add the following line to the map file, whenever it may be incorporated into the PDK:

DIEAREA ALL 235 4

This is required for density check using Klayout.