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The built-in layer constraint definition oacMinProtrusionWidth specifies that the width of a protrusion must be greater than or equal to a specified width (width1) if the protruded metal is shorter than the specified length and if it connects to a wire that has a width greater than or equal to a specified width (width2).
| Constraint type: | oaLayerConstraint |
| Value types: | oaIntValue |
| Database types: | oaDesign, oaTech |
| Object types: | oaAppObject |
The following value types are supported by this constraint:
This oaIntValue represents the minimum width for the protruded piece of the geometry in database units.
Units: DBU
The following parameters are supported by this constraint:
| Name | Value Type | Units | Default | Description |
|---|---|---|---|---|
| width oacWidthConstraintParamType |
oaIntValue | DBU | (Required) |
This constraint only applies when the width of the wide wire is greater than or equal to the width parameter value, and the length of the protruded stub is shorter than the length parameter value. |
| length oacLengthConstraintParamType |
oaIntValue | DBU | (Required) |
This constraint only applies when the length of the protruded stub is shorter than the length parameter value and the width of the wide wire is greater than or equal to the width parameter value. |
The protrusion width rule eliminates localized stress effects created by tapping of small geometries into larger geometries.
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