Send your DSN file to the Agilent EEsof support team in your region. Â That'll give you the quickest answer. Â It is most likely a mapping issue plus the geometry probably has too many vertex points in the polygons and can be cleaned up signficantly (especially with ADS2008 Update 2 release which contains a new Layout Preprocessor that does this automatically).
Our university is bound by NDAs from IBM and TSMC so there's no possibility of sending DSN files as they contain process parameters (specifically substrates). I have verified this by copying the DSN file to another computer and creating a new project logged on as a different user; the layers are not in the palette but the substrate information is still there. Is there any other file I can send which does not contain information releveant to the design kit?
On top of this, I have encountered several other problems migrating from ADS2005A to ADS2008U2. We have installations under Linux and Solaris 10. On Solaris 10, I simulated a design made in ADS2005A I am skeptical that MomEngine is doing anything at all. Although CPU usage is up to 100%, i ran 'pmap <pid of MomEngine>' (pmap display information about the address space of a process) several minutes apart and each time dumped the contents into a text file. Doing 'diff <txtfile1> <txtfile2>' showed the results to be excatly the same. Additionally, no progress is made in the simulation status window, it just says Layout Processing Started.
Now I made a new, very simple structure under both Solaris and Linux and I'm getting this error when trying to preview the mesh in RF mode:
ERROR :
Invalid or corrupted substrate description!
Please check the substrate definition and regenerate the substrate database.
You mentioned the layout preprocessor - I tried this on a complex design but I get an error (under Linux) saying:
Could not create the layer definition file - using system layer defaults.
Any ideas?