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  3. Three problems,about stream out and IC61 plot

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Three problems,about stream out and IC61 plot

bobbygang
bobbygang over 14 years ago

Hi,
 I met three problems in recent work.
1. The cell in the gds which stream out from virtuoso will lose its name, instead, the name will become a number. The multiple transistor will become separate ones.  Is there any way to stream out cell with its name before?
2. After streaming out the through hole and contact becomes a cell. So the net name through it will become two different ones.
3. In IC61, I can't find "close all" banner in graph window. How can I let it work?

I'd appreciate if someone could help me.

Best Regards,
Bobby

 

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  • Andrew Beckett
    Andrew Beckett over 14 years ago

    Bobby,

    This is very unclear. Responses:

    1. I'm presuming you're talking about pcells? If so, they have to be made into separate cells (or flattened) because there's no such thing as a pcell in the stream format. Often the names are made unique by adding a number to the end - but they should begin with the pcell's cellName (unless there is a SKILL mapping function defined).
    2. I've no idea what you mean about the "through hole and contact becomes a cell". Stream format does not preserve connectivity, so not sure what you mean about "net name through it will become two different ones". Fundamentally this problem doesn't make sense, so it's hard to know what you mean.
    3. Not specific enough a version. In IC6.1.5 if yoiu do File->Close All Windows in the ViVA Graph window, that works OK - I just tried it. Not sure if you're talking about IC6.1.5 or some other version? Or maybe you're talking about something else when you refer to "graph window"?

    Please be more specific in your questions/issues as it makes it very hard to offer advice.

    Regards,

    Andrew.

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  • Andrew Beckett
    Andrew Beckett over 14 years ago

    Bobby,

    This is very unclear. Responses:

    1. I'm presuming you're talking about pcells? If so, they have to be made into separate cells (or flattened) because there's no such thing as a pcell in the stream format. Often the names are made unique by adding a number to the end - but they should begin with the pcell's cellName (unless there is a SKILL mapping function defined).
    2. I've no idea what you mean about the "through hole and contact becomes a cell". Stream format does not preserve connectivity, so not sure what you mean about "net name through it will become two different ones". Fundamentally this problem doesn't make sense, so it's hard to know what you mean.
    3. Not specific enough a version. In IC6.1.5 if yoiu do File->Close All Windows in the ViVA Graph window, that works OK - I just tried it. Not sure if you're talking about IC6.1.5 or some other version? Or maybe you're talking about something else when you refer to "graph window"?

    Please be more specific in your questions/issues as it makes it very hard to offer advice.

    Regards,

    Andrew.

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