macro extraction? with Calibre and Cadence

[microwave_jim]

Hi,

I am using cadence for my circuit design and calibre for my
verification. I have created a lumped model that I use to model my
transmission lines. I would like to be able to match up this lumped
model in my cadence schematic with a strip of metal (a microstrip
line) in my layout. I understand that there is a method (macro
extraction I believe) that allows me to do this with Calibre's LVS
tools, however I am at a loss as to how to do it.

Any help with this would be greatly appreciated.

Cheers

 

[Gerry Vandevalk]

I have always done this in the past ( in cadence & calibre and Hercules and
.... ) but creating devices that
I refer to as deliberate parasitic devices. These are placed in the layout
and schematic and act like devices but
are actually just wires with clever markers on them.

-- Gerry



"microwave_jim" <jhowarth@ics.mq.edu-dot-au.no-spam.invalid> wrote in
message news:89KdnXVEM9dyg27fRVn_vA@giganews.com...

Hi,

I am using cadence for my circuit design and calibre for my
verification. I have created a lumped model that I use to model my
transmission lines. I would like to be able to match up this lumped
model in my cadence schematic with a strip of metal (a microstrip
line) in my layout. I understand that there is a method (macro
extraction I believe) that allows me to do this with Calibre's LVS
tools, however I am at a loss as to how to do it.

Any help with this would be greatly appreciated.

Cheers

 

[microwave_jim]

Hi Gerry,

Would you be talking about adding a marker layer and then adding rules
to the LVS deck?

Cheers

 

[Gerry Vandevalk]

yes. marker polygons.

With a more complex example this might involve a series of marker layers.

Also in cases where the actual conductor geometries are somewhat arbitrary,
I will add some auxiliary pin layers.
(i.e. in a METX inductor spiral, the PLUS and MINUS terminals are identical
in terms of polygons and layers, so adding
a PLUS polygon on the inside terminal of the layout would help in sorting
out the non-permutability.)




"microwave_jim" <jhowarth@ics.mq.edu-dot-au.no-spam.invalid> wrote in
message news:l7CdndfFotpxYm7fRVn_vQ@giganews.com...

Hi Gerry,

Would you be talking about adding a marker layer and then adding rules
to the LVS deck?

Cheers