dummy_fill_gdsii_box

ipkiss3.all.dummy_fill_gdsii_box(filename, fill_cell, target=None, ignore=None, density=0.5, design_buffer=10.0, edge_buffer=10.0, new_filename=None, top_cell_name=None)

Applies a rectangular dummy fill to a gds file to achieve a specified local density.

Parameters:

filename: string

GDS file of the design to apply dummy filling to.

fill_cell: Box

The basic element (tile) used for filling. Only Boxes are supported. The layer of this Box determines the layer on which the dummy elements are drawn.

target: Layer | tuple[int, int] | None

A layer which defines the bounding area of the filling operation.

ignore: list[Layer | tuple[int, int]] | None

List of layers to exclude/ignore during the fill operation. Elements on these layers will not be taken into account.

density: float, optional, default=0.5

Target density (0.0 to 1.0). Determines the pitch of the fill pattern.

design_buffer: float, optional, default=10.0

Keep-out distance (buffer) around existing design features where no dummy elements will be placed.

edge_buffer: float, optional, default=10.0

The margin to reserve along the inside edges of the bounding box.

new_filenamestr | None, optional, default=None

The filename to be given to the newly created gds fill containing the dummy elements. If None, _dummy_filled is appended to the original filename.

top_cell_name: str, optional

The name assigned to the top-level cell in the generated GDSII structure.

Returns:

new_filenamestr

The filename of the newly generated GDSII (e.g., ‘original_dummy_filled.gds’).

See also

ipkiss3.all.dummy_fill_gdsii

ipkiss3.all.dummy_fill_layout_box

Examples

>>> import ipkiss3.all as i3
>>> import si_fab.all as pdk
>>>
>>> box = i3.Box(layer=pdk.TECH.PPLAYER.M1, box_size=(5, 5))
>>> new_file = i3.dummy_fill_gdsii_box("my_gds_file.gds", fill_cell=box)
>>> print(f"Dummy filled gdsii file: {new_file}")