# Design Package

#### This group consists of Design Package constraints.
The rules are as follows:

- Package to package: Flags packages that overlap one another.
- Package to place keepin: Flags packages that extend beyond a place keepin.
- Package to place keepout: Flags packages that extend inside a place keepout.
- Package to room: Flags packages that are located in rooms to which they are not assigned.
- Package to cavity spacing: Verifies the clearance between the edges of a package placebound shape to edge of cavity outline. Packages that do not maintain this distance are flagged. The clearance value or the minimum distance between the edge of the placebound shape to the cavity outline is specified in the Package to cavity spacing field, available in the Design Options page of the Analysis Modes dialog box. The default clearance value is 0.
- Package height to layer: Verifies the spacing between package height and the layer. Checks if the package height is less than the thickness of the layer(s) that the cavity spans
- Max cavity area: Verifies the maximum cavity area violation.
- Max cavity component count: Verifies the maximum number of components that can reside in the cavity.