trimMinSpacing

Defines the minimum spacing between shapes on the specified trim metal layer.

trimMinSpacing Quick Reference

Constraint Type	Layer
Value Types	Value
Database Types	Design, Technology
Scope	design, foundry
Category	Spacing
Group Operators	AND, OR

Value Type

Value

Specifies the minimum spacing, edge-to-edge, between shapes on the specified layer.

Required Parameters

None

Optional Parameter

prlSpacing	Specifies that the spacing between two shapes must be greater than or equal to the first given value if the parallel run length between the shapes is zero; if the parallel run length between the shapes is greater than zero, the spacing between them must be greater than or equal to the second given value. Otherwise, the spacing between the two shapes must be greater than or equal to the constraint value. Type: DualValue
endToEndSpacing	Specifies that end-to-end spacing in the given direction must be greater than or equal to this value if the parallel run length between the shapes is greater than parallelRunLength, when specified, or equal to zero. Type: Value
oaSpacingDirection	Specifies the direction in which end-to-end spacing is measured. Valid Values: anyDirection 0 Horizontally and vertically    (default) horizontalDirection 1 Horizontally only verticalDirection 2 Vertically only Type: IntValue, StringAsIntValue
parallelRunLength	Specifies that end-to-end spacing is applied only if the parallel run length between the shapes is greater than this value, when specified. Type: Value
exactAligned	Specifies that end-to-end spacing must be greater than or equal to this value if the shapes are aligned. If parallelRunLength is not specified, end-to-end spacing is applied in Euclidian measurement. If parallelRunLength is specified, end-to-end spacing is applied in Manhattan measurement. Type: Value
exceptWidth	Specifies that if a shape on layer is between two trim shapes and has width greater than or equal to this value, all end-to-end spacing rules are exempted. Type: Value
layer	Specifies the layer on which exceptWidth applies. This is the layer that the trim metal trims. Type: LayerValue
sameMask	Specifies that the constraint applies only between shapes on the same mask. Type: BoolValue

Examples

• Example 1: trimMinSpacing with prlSpacing, endToEndSpacing, and verticalDirection
• Example 2: trimMinSpacing with endToEndSpacing, verticalDirection, parallelRunLength, and exactAligned
• Example 3: trimMinSpacing with endToEndSpacing, vertical, parallelRunLength, exceptWidth, and layer

Example 1: trimMinSpacing with prlSpacing, endToEndSpacing, and verticalDirection

set_constraint_parameter -name prlSpacing -DualValue {0.3 0.4}
set_constraint_parameter -name endToEndSpacing -Value 0.8
set_constraint_parameter -name oaSpacingDirection -IntValue 2
set_layer_constraint -constraint trimMinSpacing -layer TrimMetal1 -Value 0.5

Specifies that the spacing between two shapes must be greater than or equal to 0.3 if the parallel run length between the two shapes is zero. If the parallel run length between the two shapes is greater than zero, the spacing between them must be greater than or equal to 0.4. Otherwise, the spacing between the two shapes must be greater than or equal to 0.5.

The end-to-end spacing in the vertical direction must be greater than or equal to 0.8 if the parallel run length between the shapes is greater than zero.

Example 2: trimMinSpacing with endToEndSpacing, verticalDirection, parallelRunLength, and exactAligned

set_constraint_parameter -name endToEndSpacing -Value 0.8
set_constraint_parameter -name oaSpacingDirection -IntValue 2
set_constraint_parameter -name parallelRunLength -Value -0.1
set_constraint_parameter -name exactAligned -Value 0.7
set_layer_constraint -constraint trimMinSpacing -layer TrimMetal1 -Value 0.5

Specifies that the end-to-end spacing in the vertical direction must be greater than or equal to 0.8 if the parallel run length between the shapes is greater than -0.1. If the shapes are aligned, the end-to-end spacing in the vertical direction must be greater than or equal to 0.7. Otherwise, the spacing between the shapes must be at least 0.5.

Example 3: trimMinSpacing with endToEndSpacing, vertical, parallelRunLength, exceptWidth, and layer

set_constraint_parameter -name endToEndSpacing -Value 0.8
set_constraint_parameter -name oaSpacingDirection -IntValue 2
set_constraint_parameter -name parallelRunLength -Value -0.1
set_constraint_parameter -name exceptWidth -Value 0.4
set_constraint_parameter -name layer -LayerValue Metal1
set_layer_constraint -constraint trimMinSpacing -layer TrimMetal1 -Value 0.5

Specifies that the end-to-end spacing in the vertical direction must be greater than or equal to 0.8 if the parallel run length between the shapes is greater than -0.1. If the width of a shape on Metal1 is greater than or equal to 0.4, the end-to-end spacing requirement is exempted. Otherwise, the spacing between the shapes must be at least 0.5.

Related Topics

Spacing Constraints

check_space

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