max_width

Every place metal is wider than value (measured wall-to-wall, perpendicular to the metal’s run) is a violation. Commonly used to cap filler/dummy-fill tile size, e.g. IHP’s TM2Fil.a1 (TopMetal2 filler maximum width).

Semantics

Runs the same shared facing-edge width scan as min_width (see that page for the full rectilinear + oblique pass description), just with the opposite predicate: a measured width greater than value is the violation instead of one narrower than it.

Layers

A single layer, layers[0].

Parameters

None — only value (µm).

Violation markers

One edge marker for each of the two facing walls of any width above value (two markers per violation location), at the actual wall geometry.

KLayout equivalent

Region#width(value) filtered to the “wider than” side — KLayout’s own facing-edge width check.

Example

- id: TM2Fil.a1
  check: max_width
  layers: [TopMetal2.filler]
  value: 10.00