connectivity problem

[layoutDesign]

There exists a layout with no schematic connectivity. There are labels
at the top of the hierarchy over the pads. At various levels of the
hierarchy, there are metals and vias. I want to find out what label a
particular via shape is connected to.

I am unfamiliar with Assura rule decks, but this seems like the best
solution for such a connectivity problem that doesn't have a
schematic. Should I look at Assura, or just create a SKILL script that
could somehow address this? Any hints or help is appreciated.

 

[Marc Heise]

layoutDesign wrote:

There exists a layout with no schematic connectivity. There are labels
at the top of the hierarchy over the pads. At various levels of the
hierarchy, there are metals and vias. I want to find out what label a
particular via shape is connected to.

I am unfamiliar with Assura rule decks, but this seems like the best
solution for such a connectivity problem that doesn't have a
schematic. Should I look at Assura, or just create a SKILL script that
could somehow address this? Any hints or help is appreciated.

If you want to keep it simple use the "Mark Net" command.
It needs a valid "extractLayers" section in the Techfile and
will crawl through your hierarchy marking connected nets
after you click on one shape.
Don't forget to deselect your Metal1-Diffusion vias, or it
will mark through the gates of your transistors.

Regards,
Marc

 

[PM]

Marc Heise wrote:

If you want to keep it simple use the "Mark Net" command.

Well said Marc(k)

 

[Jean-Marc Bourguet]

layoutDesign <fordgwf@gmail.com> writes:

There exists a layout with no schematic connectivity. There are labels
at the top of the hierarchy over the pads. At various levels of the
hierarchy, there are metals and vias. I want to find out what label a
particular via shape is connected to.

I am unfamiliar with Assura rule decks, but this seems like the best
solution for such a connectivity problem that doesn't have a
schematic. Should I look at Assura, or just create a SKILL script that
could somehow address this? Any hints or help is appreciated.

In the CIW menu "Tools" there is an entry "Conversion Toolbox". There
there is a connectivity extraction tool which could be what you are looking
for.

Yours,

--
Jean-Marc

 

[layoutDesign]

On Jan 30, 4:46 pm, layoutDesign <ford...@gmail.com> wrote:

There exists a layout with no schematic connectivity. There are labels
at the top of the hierarchy over the pads. At various levels of the
hierarchy, there are metals and vias. I want to find out what label a
particular via shape is connected to.

I am unfamiliar with Assura rule decks, but this seems like the best
solution for such a connectivity problem that doesn't have a
schematic. Should I look at Assura, or just create a SKILL script that
could somehow address this? Any hints or help is appreciated.

Basically, I am wanting to create a script(s) of some sort that will
get/generate this information and then output a text file with NAME,
XY COORD, VIA_TYPE.