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valid layers not showing up in LSW

MarkAL

I create an incremental technology file and library that combines two independent technology files. I will refer to the combined technology file as "techfile_combo" and the two independent technology files as "techfile_0" and "techfile_1". 

When I compile the incremental technology file, I get a message that everything was successful with no errors.

When I create a new library and attach it to techfile_combo, valid layers from techfile_1 do not show up in the LSW, but valid layers from techfile_0 do show up. However, from Skill scripts, I can draw shapes on valid layers from both techfile_0 and techfile_1. And, in manual editing mode, I can select a shape and hit "q" to view its properties, and I can manually change the layer to any valid layer from techfile_0 and techfile_1. But to reiterate, none of the layers from techfile_1 show up in the LSW. Thus, I cannot hide them, isolate their view, click on them to manually draw shapes, etc.

Any idea what might be going on? 

  • A wild guess without testing this. Do you have the leLswLayers section in the first tech file?

    One way to check this out would be to do Right Mouse over the layer palette (assuming you're not using a really old version that still had the LSW) - say over the "Valid Used Routing" checkbox area - and pick "Options". There's a choice on the Options form called "Scope of 'All Layers' Layer Set" which can be "LSW layers" or "techfile layers". Try changing it to techfile layers.

    Either that or you have a Layer Set in place which is limiting what shows up?

    Note that a lpp doesn't need to be "valid" to create shapes in SKILL - it's only for interactive use.

    Regards,

    Andrew.

  • Thanks for the quick reply!

    I checked the technology file, and there is a leLswLayers() section in the first tech file. Good guess! This is a foundry provided tech file, and it looks like it was added in their latest version (which explains why this issue mysteriously popped up).

    I just added a leLswLayers() section to the second tech file with its own layers, and now the issue is solved. Thanks for the help!

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