Basic Checks

NoBox

It is checked, if there is any box element on the choosen layer. Polygons with rectangular shape will not marked as violation.

NoCircle

Polygons with circular shapes are marked as an violation. As there are no cirlce in the GDS file format any regular polygon with 8 or more points will be detected as a circle.

NoElement

Any shape on the choosen layer is marked as a violation.

NoPath

Any path element on the choosen layer is marked as a violation.

NoPolygon

Any polygon element on the choosen layer is marked as a violation.

NoText

Any text on the choosen layer is marked as a violation.

OnGrid

Shapes with one or more points not on the entered grid are marked as a violation.

OnlyCircle

It is checked, if there are any other elements on the choosen layer than polygons with a circular shape. This function may be especially useful for layers which are drilled. Additionally the circles can also be check on its radius. It can be check for an lower and uper limit of the radius.

OnlyRectangle

It is check if there are any other elements on the active layer then rectangles. A rectangle can be a box, a rectangular polygon in any orientation or a 2 point path with no circular caps.

OverlappingElements

For final mask data preparation or calculation of parasitic effects overlapping shapes are often a problem, as this area may be exposed twice or is double calculated in area calculation. With this feature it is checked on a single layer whether there are overlapping shapes.