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Contents

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1

Module Generators (Modgens)

Technology File Requirements for Modgens

Creating a Modgen

Using the Constraint Manager Toolbar

Using the Place Menu

Using Convert to Modgen

Using SKILL Functions

Open Modgens in the Modgen Editor

The Modgen Workspace

Modgen Placement Toolbar

Specifying Modgen Parameters

Row Regions in Modgens

Closing and Regenerating a Modgen

2

Automatic Generation of Modgens using the Array Assistant

Opening Array Assistant From the Constraint Manager

Opening Array Assistant During Device Placement

Opening the Array Assistant During Interactive Placement

Modgen Placement Settings in the Array Assistant

Modgen Pattern Presets

Setting the Placement Objective

Adding Dummies Around Modgens

Editing the Grid Pattern

Saving and Loading Array Settings from a CSV File

Specifying the Spacing Between Modgens

Methods to Add and Delete Rows and Columns in the Array Assistant

Display Names in Array Assistant

The Move Command in the Array Assistant

Swapping Cells, Rows, and Columns in the Array Assistant

Copying and Deleting Instances in the Array Assistant

Adding Dummies around Modgen Instances using the Array Assistant

Editing Modgen Dummy Properties in Array Assistant

Device Instance Management In the Array Assistant

Support for Stacks in Modgens

Stack Attributes Controlled by the Array Assistants

Creating Guard Rings Using the Array Assistant

Creating an Identical Guard Ring Using the Array

Defining Modgen Topology Settings Using the Array Assistant

Reusing Modgen Templates Using the Array Assistant

3

Modgen Tasks

Prevent Unauthorized Edits to Modgens

Modgen Transparent Editing Mode

Modgen On-Canvas Commands

Modgen Reusable Templates

Generating a Modgen Template File

Parameters of a Modgen Reuse Template File

Reusing a Modgen Template File

Modgen Dummies

Adding and Deleting Dummies in the Modgen Editor

Adding Surround Dummies

Neighbor Dummy Type for Modgens

Modgen Dummy Properties

Adding Dummy Device Rows or Columns

Backannotation of Dummy Devices

Methods to Delete Dummy Devices, Dummy Rows, and Dummy Columns

Body Contacts in Modgens

Defining Modgen Body Contact Properties

Adding and Removing Modgen Body Contacts

Grid Placement In Modgens

Placement of Modgen Body Contacts on Grids

Calculating DRC Rules

Corner Case Conditions for Modgen Grid Placer

Body Contact v/s Well Merge

Modgen Guard Rings

Creating a Multipath Part Guard Ring

Fluid Guard Rings Around Modgens

Creating Identical Guard Rings around Modgens (Virtuoso Advanced Node for Layout Only)

Modifying a Modgen Guard Ring

Removing a Modgen Guard Ring

Modgen Device Abutment

Prerequisites for Modgen Device Abutment

Abutting Modgen Devices

Multiple Abutments in Modgen Constraints

Removing Abutment from Devices

Specifying Modgen Device Alignment and Spacing

Aligning Modgen Devices Using the Shortcut Menu

Aligning Modgen Devices Using the Alignment and Spacing Form

Merging Layers

Modgen Merge Wells

4

Placing Modgen Members Interactively

Moving Modgen Instances Interactively

Customizing Rows and Columns

Adding Empty Rows and Columns to Modgens

Highlighting and Deleting Empty Modgen Rows and Columns

Selecting Rows and Columns in Modgens

Rotating and Flipping Modgen Instances

Flipping Instances

Swapping Instances

5

Modgen Forms

Apply Reuse Template Form

Body Contact Options Form

Configure Dummies Form

Dummy Options Form

Guard Ring Options Form

Identical Guard Ring Options Form

Reuse Template Exaction Form

Select Merge Layers Form

Set Member Alignment and Spacing Form

Surround Modgen Form

Master

Parameter

Connectivity

Tap

Array Assistant

6

Modgen Environment Variables

modgenAllowPinPermutation

modgenBodyContactNetToUse

modgenBodyContactReferenceLayer

modgenBodyContactSep

modgenBodyContactType

modgenCreatePreserveLayout

modgenCreatePreserveSpacing

modgenCreateReferenceLPP

modgenCreateUseDefAlignSpacing

modgenCreateUnaboundAsDummies

modgenDefHCSRefLayer

modgenDefHCSRefPurpose

modgenDefHoriAlignment

modgenDefHoriSpacing

modgenDefVCSRefLayer

modgenDefVCSRefPurpose

modgenDefVertAlignment

modgenDefVertSpacing

modgenDummyCell

modgenDummyLengthOptions

modgenDummyLengthValue

modgenDummyLib

modgenDummyNet

modgenDummyNumFingersOptions

modgenDummyNumFingersValue

modgenDummySpecifyParams

modgenDummyType

modgenDummyView

modgenDummyWidthOptions

modgenDummyWidthValue

modgenGuardRingSep

modgenInterdigitationFactor

modgenMakeMinDummies

modgenMergeLayers

modgenMergeWells

modgenMPPGuardRingToUseCB

modgenPassiveCreateOnConnectivity

modgenPatternFormAbutAll

modgenPhysConfigs

modgenPlacementConstraintGroup

modgenPreviewIgnoreXLConnVios

modgenReferencePoint

modgenRememberBodyContactVals

modgenRememberDummyVals

modgenPToTChannelWidth

modgenPToTGenTrunkTwigs

modgenPToTOnCreateFigMode

modgenPToTPinCoverTapLowerViaPercent

modgenPToTPinCoverTapLowerViaPercentEnable

modgenPToTPinCoverTapViaPercent

modgenPToTPinCoverTapViaPercentEnable

modgenPToTPinCoverViaModePercentTrunkOver

modgenPToTPinCoverViaModePercentTrunkOverEnable

modgenPToTPinCoverViaModeTrunkOver

modgenPToTPinCoverViaModeTrunkOverEnable

modgenPToTSpecifyChannelWidth

modgenPToTSpecifyTrunk2DevSpacing

modgenPToTTrimTrunks

modgenPToTTrunk2DevSpacing

modgenPToTTrunkInsertMode

modgenPToTTrunkLayer

modgenPToTTrunkNets

modgenPToTTrunkSpacing

modgenPToTTrunkWidth

modgenPToTTwigAbsoluteWidth

modgenPToTTwigDirectionDown

modgenPToTTwigDirectionLeft

modgenPToTTwigDirectionOver

modgenPToTTwigDirectionRight

modgenPToTTwigDirectionUp

modgenPToTTwigLayer

modgenPToTTwigMinNumCuts

modgenPToTTwigRelativeWidth

modgenPToTTwigWidthType

modgenPToTViaControlCutClass1

modgenPToTViaControlCutClass2

modgenPToTViaControlCutClassLayer

modgenPToTViaControlCutClassName

modgenPToTViaControlCutClassType

modgenPToTViaControlCutClassEnable

modgenPToTViaControlExtensionOrient

modgenPToTViaControlExtensionOrientEnable

modgenPToTViaControlInline

modgenPToTViaControlInlineEnable

modgenPToTViaControlOffset

modgenPToTViaControlOffsetEnable

modgenPToTViaControlOrient

modgenPToTViaControlOrientEnable

modgenPToTViaWidthPercent

modgenPToTViaWidthPercentEnable

modgenSaveOnClosePreviewWindow

modgenTransferDiffInstances

modgenTransferIgnoreParamsList

modgenUseSnapSpacing

modgenUseIteratedAsMfactor

modgenWidthParamProportionalToFingers

modgenWindowConfigFile

transparentModgenArray

chainPermutePins

moveAsSwap

patternDefaultDisplayMode

patternPresetItemList

useDummyOwner

7

Modgen Topology Constraints

minNumCut

minWidth

numStrands

pinCover

properTwigTrunkOverlap

strandSpacing

strandWidth

trunkAccessingNumCuts

validLayers

Defining Modgen Topology Settings Using the Array AssistantvalidStackLPPs

viaControl

viaPercent

wirePercent

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