range in cadence layer map file

[rajaa2005]

I have a layer map file

#Cadence layer    Cadence layer    Stream layer    Stream data
#name                    purpose                  number            type

metal                      drawing                 13,10,18           0-63
poly                         drawing                 40                      0

Here cadence layer "metal" mapped to stream layer number 13,10,18.
Also cadence purpose "drawing" mapped to stream data type 0-63.

Can any one explain .. what does it mean?????

Will it add layer "metal" 3 times to stream file .

Thanks in adv.

 

[erikl]

I have a layer map file

#Cadence layer    Cadence layer    Stream layer    Stream data
#name                    purpose                  number            type

metal                      drawing                 13,10,18           0-63
poly                         drawing                 40                      0

Looks like a GDSII MASK layer description:
An example MASK list - embedded in a GDSII stream file - looks like this:
1 5-7 10 ; 0-255 (hex notation represented in ASCII format).

Stream-in and stream-out layer map tables should have a unique assignment between
layer-name layer-purpose stream-layer-number stream-data-type

See here an example for a stream_out.map :

# Cadence name  purpose    Stream layer-num  type-num
  Metal1          drawing       7               0
  Metal1          pin           7               1
  Metal1          net           7               2
  Via1            drawing       8               0
  Metal2          drawing       9               0
  Metal2          pin           9               1
  Metal2          net           9               2
  Via2            drawing      10               0
  Metal3          drawing      11               0
  Metal3          pin          11               1
  Metal3          net          11               2
  Via3            drawing      30               0
  Metal4          drawing      31               0
  Metal4          pin          31               1
  Metal4          net          31               2
  Via4            drawing      32               0
  Metal5          drawing      33               0
  Metal5          pin          33               1
  Metal5          net          33               2
  Via5            drawing      34               0
  Metal6          drawing      35               0
  Metal6          pin          35               1
  Metal6          net          35               2
  Cont            drawing       6               0
  Poly            drawing       3               0
  Poly            pin           3               1
  Poly            net           3               2
  Nwell           drawing       2               0
  Pwell           drawing      18               0
  Oxide           drawing       1               0
  Nburied         drawing      19               0
  Nimp            drawing       4               0
  Pimp            drawing       5               0
  Bondpad         drawing      36               0
  Capdum          drawing      12               0
  INDdummy        drawing      16               0
  IND2dummy       drawing      17               0
  Resdum          drawing      13               0
  BJTdum          drawing      15               0
  NPNdummy        drawing      20               0
  PNPdummy        drawing      21               0
  DIOdummy        drawing      22               0
  CapMetal        drawing      14               0
  allGeoShare     drawing     100               0
  allGeoShare     GeoShare    100               1

drawing purpose layers generally have stream data type # 0 .

 

[rajaa2005]

many many thanks.........

 

[ddis]

hi erkil,

i saw ur post on layer map file..

i have designed an inductor in HFSS which generates GDS file that can be imported into cadence..

Now i require a layer map file for 180 nm CMOS tech...

how do i write it plz help...

 

[erikl]

Now i require a layer map file for 180 nm CMOS tech... how do i write it

Depends on your foundry. Ask them!

 

[Teddy]

ddis, I would just stream in the inductor. Cadence would assign any layer to your inductor metal etc. Then just go in to it and change layers as they suppose to be ba hand,. For inductor it is not so difficult. Way easier than figuring our the layer map.

 

[ddis]

ddis, I would just stream in the inductor. Cadence would assign any layer to your inductor metal etc. Then just go in to it and change layers as they suppose to be ba hand,. For inductor it is not so difficult. Way easier than figuring our the layer map.

hi teddy,

i think its not possible to edit layers in cadence virtuoso....

if you know how to edit plz reply

thank you

 

[erikl]

i think its not possible to edit layers in cadence virtuoso....
if you know how to edit plz reply

You can always select a polygon, edit it (q) and change its layer.
Or you can copy selected polygons to another layer and delete the original ones.

 

[ddis]

hi all,

i will tell u what i did to import the layout..

i gave the layermap file to cadence virtuoso


ME4 drawing 5 0

VI4 drawing 4 0

ME5 drawing 3 0

VI5 drawing 2 0

ME6 drawing 1 0

ME4 pin 52 0

ME5 pin 54 0

ME6 pin 56 0




i edited the nos given by cadence original rule file according to my design

(eg. ME6 was given no. 56 & i edited to 1)

now i can see my layout in cadence with proper colors.........

 

[mike.zhang]

Hi rajaa2005
"metal drawing 13,10,18 0-63"

three layers which number are 13,10,18 datatype from 0 to 63, will be stream to metal layer .