stream-out & stream-in with techfile

Discussion in 'Cadence' started by Gerd, Feb 22, 2005.

  1. Gerd

    Gerd Guest

    Hi,

    I have a technology file in which the techLayers() and streamLayers()
    subclasses are defined as they should be (i think). When i do
    Export->Stream of a given layout to a .gds file with this techfile (no
    separate layer mapping table) and then Import->Stream of the same .gds
    file (again with the techfile), the layer mapping doesn't seem to
    behave as i expect it to... I know the GDS2 numbers in the .gds file
    are correct after stream-out. But, at stream-in, these GDS2 numbers are
    mapped to the internal Cadence numbers defined in techLayers() instead
    of to those in streamLayers(). As such, the layout you see after
    stream-in has totally incorrect layers... Why is this? Is
    streamLayers() only intended for stream-out?

    Thanks,
    Gerd
     
    Gerd, Feb 22, 2005
    #1
  2. Gerd

    Erik Wanta Guest

    Gerd:
    Try creating a new library and attaching it to the technology first.
    Then stream into that library.
     
    Erik Wanta, Mar 3, 2005
    #2
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