minWidth (oacMinWidth)

Description

The built-in layer constraint definition oacMinWidth determines the minimum orthogonal width for any geometry on the specified layer, in database units.

Constraint at a Glance

Constraint type:	oaLayerConstraint
Value types:	oaIntValue
Database types:	oaDesign, oaTech
Object types:	oaRoute, oaPin, oaScalarNet, oaBusNetBit, oaAppObject

Values

The following value types are supported by this constraint:

oaIntValue
This oaIntValue represents the minimum width for a geometry in database units.

Units: DBU

Parameters

The following parameters are supported by this constraint:

Name

Value Type

Units

Default

Description

oaSpacingDirection
oacSpacingDirectionConstraintParamType

oaIntValue

Enum

This parameter is used to model the width of the wiring in the opposite direction of the routing layer direction.

This parameter is represented by an oaSpacingDirectionType enumeration:

Value	Name
oacAnySpacingDirectionType	any
oacHorizontalSpacingDirectionType	horizontal
oacVerticalSpacingDirectionType	vertical

exceptPointTouch
oacExceptPointTouchConstraintParamType

oaBooleanValue

Boolean

False

If set to true, this Boolean parameter is specifies that a shape can point touch a second shape on the same layer at a corner.

exceptLineTouch
oacExceptLineTouchConstraintParamType

oaIntRangeValue

DBU

None

This parameter is used to specify the length range within which the shapes are allowed to share the common line touch.

distanceMeasureType
oacDistanceMeasureTypeConstraintParamType

oaIntValue

Enum

euclidian

This parameter determines whether how spacing values are measured.

This parameter is represented by an oaDistanceMeasureType enumeration:

Value	Name
oacEuclidianDistanceMeasureType	euclidian
oacManhattanDistanceMeasureType	manhattan

Examples

Manufacturing Reasons

The minimum width rules limit the size of geometries to ensure that they have a pattern large enough to fabricate.