Automating the untilities fill tool in Ruby

sedborg2

I would like to automate the fill tool under utilities to add a "loading" boxes to a die and scribe street. I may need an example of Ruby script for the fill utlity.

Matthias

What are the parameters you are using?

sedborg2

I have a gds file with the unit cell loading structure. I would like to place it via stepping the unit cell (cross) every 10um in both x and y bounded by a layer gds drawn scribe

sedborg2

In this case the unit cell (loading structure) could be a 5um x 5um box

sedborg2

BTW can this be done in DRC?

Matthias

Yes, DRC is able to do this. For details see here: https://www.klayout.de/doc-qt5/about/drc_ref_layer.html#h2-1080

Here is some sample:

to_fill = input(1, 0)

# Create a fill pattern with a single box at 2/0
# This is a 5x5 µm box 
pattern = fill_pattern("FILL_CELL").shape(2, 0, box(0.0, 0.0, 5.0, 5.0))

# place every 10 µm
to_fill.fill(pattern, hstep(10.0), vstep(10.0))

Matthias

Hartsa

Thanks for the script. I tried to run a bit modified version but it left small gaps in some places. Unfortunately I was not able to attach the .oas file, but it was very simple one: only one donut in layer 1, inner radius 80µm and outer radius 82µm. DRC script was almost the same:

to_fill = input(1, 0)
# Create a fill pattern with a 0.025x0.025 µm box at 2/0
pattern = fill_pattern("FILL_CELL").shape(2, 0, box(0, 0, 0.025, 0.025))
pattern.origin(0.0125, 0.0125)

# place every 25 nm
to_fill.fill(pattern, hstep(0.025), vstep(0.025))

# find gaps
input(2, 0).space(0.05.um).output(100,0)

Is there an error in my code or is it a bug? KLayout-version is 27.8 running on 64-bit Win10.

Matthias

You can attache OAS when you put it into a .zip archive. Or could you paste a screen shot at least?

And it's always worth trying the latest version.

Matthias

Hartsa

Here you are! KLayout 28.5 used this time.

Matthias

Many thanks. Nicely prepared test case.

BTW: you can significantly improve the space check speed on 0.28.5 using this space check (note the added "merged"):

input(2, 0).merged.space(0.05.um).output(100,0)

I have to debug the issue. A ticket has been created here: https://github.com/KLayout/klayout/issues/1309

Kind regards,

Matthias