minEdgeLength (oacMinEdgeLength)


Description

The built-in layer constraint definition oacMinEdgeLength specifies the minimum edge length for a shape in database units.

Constraint at a Glance

Constraint type: oaLayerConstraint
Value types: oaIntValue
Database types: oaDesign, oaTech
Object types: oaAppObject

Values

The following value types are supported by this constraint:

Parameters

The following parameters are supported by this constraint:

Name Value Type Units Default Description
lengthSum
oacLengthSumConstraintParamType
oaIntValue DBU None

When this parameter is specified, the oacMinEdgeLength constraint does not apply if the sum of the consecutive edges that are shorter than the minimum edge length value is less than the value of the lengthSum parameter.

Examples

constraintMinEdgeLength.gif

Manufacturing Reasons

Edge length constraints increase the probability that OPC techniques can be used on the geometry to address the lithography distortions that are created during manufacturing.


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