Three problems,about stream out and IC61 plot

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.

Andrew,
  I'm sorry for my unclear questions.But fortunately you understood what I mean roughly.I will say more detailed about them:
1. I realy want to keep the pcell information after stream out and now I know the cells will be flattened.
   So there is no other way to solve it, is it?
2. When I draw layout in virtuoso, the metal connected together will have same net name in connectivity option.
   In fact what I want is after I stream out a layout I want to achieve same function when I import the generated gds file.
   So I guess perhaps theres is some option to do this .
   However you say that stream format does not preserve connectivity. So what I say is only a wild wish.
3. My version is IC6.1.4. I change the version recently and I used IC51 before so I'm not familiar with VIVA.
   Let me give you an example, if I input newWindow() command in CIW many times,many graph window will appear.
   But I have to close them one by one becausse I can only find File->Close instead of File->Close All.
  
Best regards,
Bobby

Bobby,

Answers:

1. No
2. I don't really see why it should not be able to reconstruct the connectivity (assuming you're using layoutXL). You probably need to use the via map capability in the stream interface; that way it can map back the cells created for the vias (this is a similar problem to pcells; there's no such thing as a "via" in the stream format) into vias recognized by virtuoso again.
3. In IC614 there doesn't seem to be a File->Close All menu (rather oddly, since it was in wavescan in IC5141 - although not in AWD). This bit of SKILL can be used though:
   
   procedure(MYcloseAllGraphWindows()
     foreach(win hiGetWindowList()
       when(awvIsPlotWindow(win)
         awvCloseWindow(win)
       )
     )
     t
   )

 Kind Regards,

Andrew.