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Contents

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1

Setting up the Interactive Routing Environment

License Requirements of Interactive Routing Features

Configuring Wire Editing Options

Layout Editor Options Form

Stretch Options

Tapping Wires

Tapping Internal Nets

Tapping Vias

Tapping Results Based on validVias and validLayers

Creating Halos

Adding the lxStickyNet Property to Wires

Support for Voltage-Dependent Rules

Support for Area-based Rules

minWidth

allowedWidthRange

allowedLengthRange

rectShapeDir

minSpacing

minArea

Via Rules

Using Mouse Button Controls

Startup Warnings

2

Technology Requirements

Technology File Requirements

Specifying Layer Order

Specifying Routing Layer Directions

Specifying Via Definitions

Specifying Valid Layers and Valid Vias

Limiting Routing on a layer

Via Usage Model

Specifying Track Patterns and Width Spacing Patterns

Supporting Colored Trim Metal Layers

Using Layer-Purpose Pairs

Poly Pins over an Implant Layer

Support For 45 nm Rules

Supported Constraints with Supported Parameters

Constraint Groups

Foundry Constraint Group

Application Constraint Groups

Specifying the Default Constraint Group for Routing

virtuosoDefaultExtractorSetup

virtuosoDefaultSetup

LEFDefaultRouteSpec

virtuosoDefaultTaper

User-Defined Constraint Groups

Storing Constraint Groups

Constraint Group Lookup Precedence

Scalar Versus Table Spacing Rule Precedence

Supported Constraints and Parameters

Supported Constraints and Parameters (Virtuoso Advanced Node for Layout Standard)

Supported Constraints and Parameters (Virtuoso Advanced Node for Layout Only)

3

Working with Wires

Introduction to Wires

Types of Wires

Wire Elements

Wire Objects

Wire Parameters

Creating Wires

Creating a Wire

Creating a Diagonal Wire

Creating a Floating Wire

Creating a Wire with 45 Degree Segments

Creating an Odd Width Wire

Creating Wires Snapped to Track Patterns

Editing Wires

Editing Wire Properties

Editing Via Properties

Editing Cut Patterns

Multiple Wire Editing

Editing Wire Width

Editing Layer-Purpose Pair

Splitting Wires and Vias

Using Keep Wires Connected to Split Command

Support for Local Interconnect (Li/MOL) Layers

Wire Editing with Li/MOL Layers

Enhanced Snapping in Wire Editing

Smart Snapping in Interactive and Assisted Routing Commands

Disabling Layer Tapping, Via Insertion, and Smart Snapping

Support for Mosaics in Create Wire

Support for cdsGenVia for Different Purposes

Setting Dynamic Measurement for the Area Calculation

Support for Pixel Based Gravity

Displaying Wire Summary

4

Working with Vias

Specifying a Valid Via List

Specifying Via Parameters Calculation Mode

Changing Layers and Selecting Vias

Inserting Vias Automatically

Fanning Out Wires to Vias

Using Via Assistance

Creating an Array of Vias

Stacking Vias

Inserting Multi-Layer Stack Via

Minimum Area Rules

Changing Via Cut Color

5

Working with Buses

Creating a Bus Constraint

Autopicking Bus Bits

Creating a Bus

Restarting a Bus From Existing Routes

Using the Control Wire

Editing a Bus

Avoiding Shorts with Existing Blockages for Create Bus

Supporting Multi-Layer Bus

Creating a Multi-Layer Bus from Existing Pins

Creating a Multi-Layer Bus from an Empty Space

Creating a Stacked Multi-Layer Bus from a Single Pin

Creating a Stacked Multi-Layer Bus from Multiple Pins

Defining a Custom Layer Pattern

Transitioning Capabilities in a Multi-Layer Bus

Stacked Wires within Multi-Layer Bus

Transitioning Capabilities in a Wire Stack within a Multi-Layer Bus

Customizing Multi-Layer Bus Transition

6

Working with Stranded Wires

Creating a Stranded Wire

Creating a Stranded Wire from an Existing Pin

Creating a Stranded Wire from an Existing Wire

Creating a Stranded Wire from Tieout

Creating a Stranded Wire from a Rectangle or PathSeg Covering a Pin

Inserting Vias Automatically

Tapering in Stranded Wire

Enabling Bridge Vias Using WSPs

Avoiding Shorts with Existing Blockages

Filtering Objects by Net Name

7

Using Assisted Routing Commands

Point to Point Routing

Setting Point to Point Wires to Match Pins

Supporting Track-based Routing

Finishing a Trunk

337

8

Editing Routed Connections

Stretching Wires and Vias

Variables that Control Stretch

Controlling the Angle of Wires

Using the Stretch Command

Preserving Paths

Stretching Wires Connected to Pins

Stretching Wires Connected to Vias

Stretching Wires Across Tracks

Moving Wires

Copying Wires

Re-routing a Wire

Reshaping Wires

Removing Loops From Wires

Merging Wires

Collinear Abutment or Overlap of PathSegs

Coincident Abutment or Overlap

Merging a Pathseg with a Path

Self-intersecting Objects

Deleting Wires

Copy Route Command

Setting Copy Route Options

Copying Pin-to-Pin Routes

Copying Pin-to-Wire Routes

Handling Wire Copies for EM Analysis

9

Managing Metal Density

Metal Density Toolbar

Performing Metal Density Checks for Shapes

Deleting Fillets

Specification Cells

Fillet Creation (Virtuoso RF Solution Only)

Specifying the Fillet Options

Support for Slot Shapes in DRD and EAD

10

Interactive Colored Routing

Interactive Coloring for Create Wire

Creating a Colored Wire

Inserting Via on Colored Wires

Tapping Colored Objects

Interactive Coloring for Create Bus

Creating a Bus in an Empty Space

Creating a Bus by Tapping Pins

Creating a Bus While Working with Colored WSPs

Performing DRC Colored Checks

Interactive Coloring for Create Stranded Wire

Specifying the Color Mode in Stranded Wire

Changing the Color of Stranded Wire

Changing the Stranded Wire Color Mode

Creating a Stranded Wire by Tapping Pins

Creating a Stranded Wire While Working with Colored WSPs

Avoiding Shorts with Existing Blockages on Colored WSPs

Supporting End-to-End Spacing for Colored Shapes

Interactive Coloring for the Stretch Command with Colored WSPs

Color Locks While Editing a Wire

Inserting TrimMetal Layers in Interactive Colored Routing

Supporting Colored TrimMetal Layers

Supporting Colored TrimMetal Layers for the Stretch Command

Supporting Colored TrimMetal Layers for Create Bus

Supporting Patch Metal Shapes

11

Supporting Width Spacing Patterns

Width Spacing Pattern Display in Wire Editing

Dynamic Display

Alpha Blending

Customizing Display of WSP Tracks

allowedWireTypes Support

Snapping Behavior in WSP During Wire Editing

Enabling Wire Snapping

Snapping of Wire in Width Spacing Patterns

Support for snapPattern singleTrackCenter

Automatic Via Insertion during Wire Snapping

Snapping on WSP for Assisted Routing Commands

Working with Width Spacing Patterns During Wire Editing

Switching Patterns Dynamically

Crossing Region Boundaries

Wire Editor Gravity

Automatic Switching of the Active Pattern Across Regions

Working with Selected Sets of Wires

Nested WSP Regions

Region R1 Partially Overlaps Another Region R2

Two Regions Overlap With the Exact Same Boundary

Region R1 Partially Overlaps Another Region R2 With the Same Width Spacing Pattern

Region R1 is Fully Enclosed in Another Region R2

Supporting pathSegs with Different WSPs across Regions

Wire Editor Hierarchy Support

Pattern Flipping Support

12

Supporting Virtuoso RF

Supporting Curved Paths

Creating a Packaging Wire

Inserting Via and Changing Layer

Stretching a Curved Path

Automatic Snapping Using Stretch

Curved Path Snapping Behavior in Packaging Wire

Tapping of Curved Paths

Creating a Packaging Bus

Snapping Behavior of Curved Paths Using Create Packaging Bus

Supporting Package Constraints

Area-based Rules in Create Package Wire

minWidth

maxWidth

minSpacing

Area-based Rules in Create Packaging Bus

minWidth

maxWidth

minSpacing

Push and Shove in Interactive Routing

Using Push and Shove while Creating a Wire

Using Push and Shove while Stretching a Wire

Support for Area-based Rules in the Push-and-Shove Feature

Support for Shielding Constraints in the Push-and-Shove Feature

A

Interactive and Assisted Routing Forms

Create Bus Form

Edit Bus Form

Create Wire Form

Create Stranded Wire Form

Point to Point Form

Select Via Form

Metal Density Options Form

Layers

Slot Geometry

Slotting Style

Slot Consistency

Fillet

Slotting Button

Create Packaging Bus Form

Copy Route Form

General

Options

B

Interactive and Assisted Routing Shortcut Menu Commands

Create Bus Shortcut Menu Commands

Edit Bus Shortcut Menu Commands

Create Single Wire Shortcut Menu Commands

Reshape Wire Shortcut Menu Commands

Split Wire Shortcut Menu Commands

Create Stranded Wire Shortcut Menu Commands

Point to Point Shortcut Menu Commands

Stretch Shortcut Menu Commands

C

Interactive and Assisted Routing Environment Variables

Variables to Customize the Interactive and Assisted Routing Settings

adjustEditedViasParams

adjustEditedViasParamsScope

allLayersWrongWay

allLayersWrongWayCustomValue

allowLoops

allowOffTrackForCrossRegion

autoDisableProbeDuringIARouting

autoLengthControl

autoTap

autoTapActiveLayer

autoTerminate

autoUpdateFlightlines

autoViaAlignment

autoViaAlignmentColinearTransitionBehavior

autoViaAlignmentOrthoTransitionBehavior

blockageAvoidanceSearchThreshold

blockageUseMinWidth

checkOffGridEditedWires

constraintGroupCustomFilterMode

copyRoutingAllowCrossings

copyRoutingPreserveSpacing

createBusAllowsMultiLayerSelection

createWireMode

createWireStitchAware

displayMinAreaMarker

displayOrthogonalGridEndPoints

dynamicDisplayEnabled

enableDynamicPatternSwitching

enableFinishRoutingCmds

enableWidthOverride

enforceStretchWidthConstraints

fanOutToVias

flightLinesLimit

flightLinesPolygonPointsLimit

flightLinesShapesLimit

gatherAndSpreadSpacing

ignoreSameMaskColor

keepWiresConnected

layerTapPickWireVia

lockUnselectedVias

maxNumConnWireElements

mixedSignalWireEditingEnvironment

moveConnectedInstancesAndWires

moveConnectedObjectType

p2pSeedStyle

pathSegBeginExt

pathSegBeginStyle

pathSegEndExt

pathSegEndStyle

patternFillAlpha

patternGravity

patternGravityLayerTransitionType

patternOutlineAlpha

patternRenderingAperture

pushAndShoveMode

pushAndShoveSmooth

pushAndShoveCheckerStopLevel

setTaperMode

showAlignmentMarkers

snapResizeWireLabels

snapToPin

snapToViaCenter

snapWireGrid

spaceFuncName

taperToPinWidth

taperToPinWidthStyle

tapPreference

useMergeBusAndWire

useOverlapRegionForVia

viaAlignment

viaCheckDRC

viaCutColorMode

viaCutColorPatterns

viaExtendEnclosureBeyondOverlap

viaFillEnclosureOverlap

viaMaxNumCuts

viaPattern

weAllowOddWidth

weAreaBasedRulesEnabled

weAreaBasedRulesHierLevel

weAreaBasedRulesWidthMode

weARWidthMode

weARTapWideEdge

weARTapWidthOnPins

weARTapWidthOnWires

weAutoDropVia

weAutoDropViaForOverlaps

weAutoMergeWires

weAutoWidthModeAfterVias

weBusColorMode

weBusNumBits

weChangeWireDirectionAfterVia

weCoverPin

weCreateBusConstraint

weCustomLayerPattern

weCWStretchLastPointModifier

weCWWidthMode

weEnableDanglingTargetsFL

weEnableXLCheckoutInL

weEnforceDirFromRoutingPattern

weFlightLinesHierLevel

weGuidedRouteGatherAtBend

weHalo

weHaloDashStyle

weHaloEnabled

weHaloEOLSpacing

weHaloTrueColor

weInstancePinPattern

weInteractiveShielding

weKeepSelectViaOrder

weMemoryOptimization

weMfgGridWidthIncrement

weNoSmartSnap

wePostCriticWires

weShowCtrlWireAlignMarkerOnly

weShowHints

weSmartSnappingDepth

weStrandedAlignCollinearMode

weStrandedColorMode

weStrandedLadderAtTurn

weStrandNum

weStrandSpacing

weStrandWidth

weTapWidthOnPins

weTapWidthOnVias

weTapWidthOnWires

weTrimBridgePurpose

weTrimInsertion

weTrimInsertionOnPRBoundary

weTrimPatchExtension

weTrimPatchPurpose

weTrimTrimPurpose

weWACmdCalculatedColor

weWAConflictColor

weWADefaultSeedCGName

weWASeedCGColor

weWAUserDefColor

wireConstraintGroup

wireOffset

wireTaperConstraintGroup

wireViaStackMode

wireWidth

Variables to Customize the Settings for Slotting

addFilletOnBondFingers

addFilletOnCircle

addFilletOnComplexShapes

addFilletOnOblong

addFilletOnOctagon

addFilletOnPaths

addFilletOnPadWithoutDrills

addFilletOnPins

addFilletOnRectangle

addFilletOnSquare

addFilletOnTconnections

addFilletOnVias

areaDelimitedMode

curvedFillet

desiredAngle

densityAwareMode

directionalSlotPattern

enableSlotSpecCell

excludePins

floatingSlot

hideConvertToPolygon

hideReconstruct

lengthWidthRatio

lSpacing

mainSlotFigGroupName

material

maxAngle

maxLineWidth

maxOffset

maxSizeOnCircle

maxSizeOnComplexShapes

maxSizeOnOblong

maxSizeOnOctagon

maxSizeOnRectangle

maxSizeOnSquare

metalDensityLayers

minLineWidth

minPolygonEdgeLength

slottingContext

slotLength

slotOverBlockage

slotOverInstance

slotOrientationMode

slotOutOfGroup

slotSpecCell

slotStaggered

slotToEdge

slotVia

slotWidth

taperedTraces

tapDesiredAngle

tapMaxOffset

tapMinSegAngle

touchBlockageMode

turnSlotPattern

unassignedShapes

useOneSlotSpecCell

usePaletteLayers

wSpacing

widthThreshold

Variables to Customize the Settings for Copy Route

copyRouteAllowCopiesWithoutMatchingPins

copyRouteBottomLayer

copyRouteClearPreviewWhenEsc

copyRouteCreateFigGroup

copyRouteEnableRoutingChannel

copyRouteEnableSpacingAtEnds

copyRouteEnableValidLayer

copyRouteEnableWidthAtEnds

copyRouteGenerateCopyWithErrors

copyRouteLayerPattern

copyRouteLayersMode

copyRouteNumCopiesInSpace

copyRoutePreserveCutClasses

copyRoutePreviewMode

copyRouteRoutingChannelLPP

copyRouteSpacingMode

copyRouteSpacingModeAtEnds

copyRouteSpacingOverrideAllLayers

copyRouteSpacingOverrideAllLayersAtEnds

copyRouteTopLayer

copyRouteTrimmingFixer

copyRouteWidthMode

copyRouteWidthModeAtEnds

copyRouteWidthOverrideAllLayers

copyRouteWidthOverrideAllLayersAtEnds

D

Bindkey Keyboard Map

E

Routing Assistant - Interactive Mode

Routing Assistant Tabs

Routing Assistant Command Buttons

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