i want to ask a question, when i try to export .gds file from virtuoso, the gds file always produces a wrong layer number.
For example, if the gate layer should be numbered to 2, but i get 2.10 from the gds file.
if the metal-1 layer should be numbered to 3, but i get 3.10 from the gds file.
thanks for your reply, what is wrong in here?
First off all where do you see the numbered GDSI, in which tool or environment?Then the sub number .10 might be the GDS datatype.GDS has a layer no. and a datatype comparable to the Virtuoso layer name and prupose e.g. M1, drawing.Often different layer purposes are mapped to specific datatypes.There must be a mapping file for the stream out process somewhere, which can explain this. The "Design Data Translator's Reference" is a good reference.
Bernd is right, the GDS stream layer number and datatype number are possibly being displayed together, though they both will be integer data type, so perhaps 3.10 = metal1 drawing and 2.10 = poly drawing and this is just how the layer number and datatype are being displayed?
Hope this helps!