This may be a dumb question. But for example: how can I change hundreds of shapes in Metal1 to Metal2 in an easy way? I am using IC61. Thanks in advance.
If you have them selected, you can use Edit Properties, hit the common button, and change the layer in the cyclic field. Or you could use the property assistant (Window->Assistants->Property Editor), change the top left cyclic to All, and then next to the + for Layer click where it says Metal1 drawing, and then you can change on the drop-down cyclic field to Metal2 drawing.
Or you could use Tools->Find/Replace.
Or you could see this post
Thanks a lot for your help. The property assistant is very useful. If you don't mind, may I ask another question?
I am working on IBM_7RF technology. Now I have to change the top metal layer of my design from ML to AM. That causes the issue that I have to reinstall another PDK and create another workspace for the new top metal layer option, which basically means a new technology version. What I do is copy my design library folder into the new workspace and re-define cds.lib, and then change metal layer of the shapes. When this is done, I tried to test Assura DRC and LVS. Both give errors about "failed on building up VDB". Is the reason from compatibility of my design, or from the Assura itself? I am using IC614 with Assura41. Thanks again for your time.
Hard to be sure whether it's a setup or a tool issue (it's unlikely to be due to the change in the design itself though). Please post the precise (and complete) error message (maybe you could also try using the latest hotfix of ASSURA41?)
THe error message of DRC is
ERROR (AVVSI-10001): Input layout is incomplete. If you still want to continue the run, remove undefined placements from the layout or set '?errorOnMissingMaster nil' option in the RSF-file. (The default value of parameter '?errorOnMissingMaster' is 't'.)
*WARNING* Error while building the VDB
*WARNING* Failed to build VDB. Cannot submit DRC Run.
However I don't really find any undefined shapes or instances. If I run DRC again, Cadence will crash. Here I attach the crash report log. Thanks for your time.