mapping

Specifies the mapping between devices and symbols. You can also define mapping for dummies.

Value: Pairs of strings t_source t_symbol

Example: "Dummy * S0 B S1 C\nS2 A"

baseOrient

Specifies the interdigitation pattern of Modgen instances in terms of their orientations.

Value: A list of one or more space-separated symbols from the set {"R0", "R90", "R180", "R270", "MX", "MY", "MXR90", "MyR90", "-"}.  )

Example: "R270 R90\nMX MY"

orient

Specifies orientations of the Modgen instances.

Value: A list of one or more space-separated symbols from the set {"R0", "R90", "R180", "R270", "MX", "MY", "MXR90", "MyR90", "-"})

Example: "R0 R0 - -  R0 R0"

basePattern

Specifies the interdigitation pattern of Modgen instances in terms of their symbols.

Value: String of one or more space-separated symbols t_pattern

Example: "B A * A B"

pattern

Specifies the pattern to place instances in a Modgen.

Value: String of one or more space-separated symbols t_pattern

Example: "- B A *\nA B -"

zigZag

Specifies whether a zigzag pattern is to be followed in the Modgen.

Value: Boolean

Example: t

interdigitateBy

Specifies the integer value based on which instances are interdigitated.

Value: integers zero or greater

Example: 0

rows

Specifies the number of rows in the Modgen array or sandbox.

Value: A positive integer x_rows

Example: 2

verticalSpacingLayer

Specifies the reference layer based on which the vertical spacing of devices must be calculated.

Value: A list of two strings t_layer t_purpose, the string all, or an empty string.

Example: M3 drawing

verticalSpacingDistance

Specifies the vertical spacing of devices in the Modgen.

Value: A number x_verticalSpacingDistance (in user units)or nil

Example: 3

horizontalSpacingLayer

Specifies the reference layer based on which the horizontal spacing of devices must be calculated.

Value: List of two strings in the format t_layer t_purpose, the string all, or an empty string.

Example: M3 drawing

horiztontalSpacingDistance

Specifies the horizontal spacing of devices in the Modgen.

Value: Either a number (in user units) x_horiztontalSpacingDistance or nil

Example: 3

abut

Specifies whether the Modgen instances are to be abutted. The tool attempts to abut all array members.

Value: Boolean

Default Value: nil

Example: t

mergeLayer

Specifies the layers to be merged.

Value: String of colon-separated layer names, the string well, or the string default

Example: Oxide:Metal

Dummy Type

dummyOverrideParams

Specifies dummy parameters to overrride existing values.

Value: A list of two values in the format '(paramName paramValue))

Example: (dummyParam1 5)

dummyWidthValue

Specifies the dummy width value in terms of the number of fins.

Value: Integer n_dummyWidthValue

Example: 4

dummyWidth

Specifies the mode for specifying dummy width value.

Value: String. The valid values are:

• CDF Default – The default number of fins specified in the CDF
• Same As Neighbor – The number of fins of the neighboring device
• Specify – You can specify the number of fins

Example: Same as Neighbor

dummyLengthValue

Specifies the dummy length value in terms of the number of fins.

Value: n_dummyLengthValue

Example: 4

dummyLength

Specifies the mode for specifying the length of dummy fingers.

Value: String. The valid values are:

• CDF Default – The default finger length specified in the CDF
• Same As Neighbor – The length of fingers of the neighboring device
• Specify – You can specify the length of fingers

Example: Specify

dummyNumFingersValue

Specifies the number of dummy fingers to be created.

Value: n_dummyNumFingersValue

Example: 2

dummyNumFingers

Specifies the mode for specifying the number of dummy fingers.

Value: String. The valid values are:

• CDF Default – The default number of fingers specified in the CDF
• Same As Neighbor – The number of fingers of the neighboring device
• Specify – You can specify the number of fingers

Example: Specify

dummyNet

Specifies the net to which all dummy terminals must connect.

Value: A string representing a valid net name.

Example: net1

dummyBracket

Checks for the presence of surround dummies.

Value: Boolean. The default value is nil.

Example: t

dummyEdgeBottom

Checks for the presence dummies along the bottom edge of the Modgen constraint.

Value: Boolean. The default value is nil.

Example: t

dummyEdgeTop

Checks for the presence dummies along the top edge of the Modgen constraint.

Value: Boolean. The default value is nil.

Example: t

dummyEdgeLeft

Checks for the presence dummies along the left edge of the Modgen constraint.

Value: Boolean. The default value is nil.

Example: t

dummyEdgeRight

Checks for the presence dummies along the right edge of the Modgen constraint.

Value: Boolean. The default value is nil.

Example: t

dummyTransitionColumns

Specifies the number of transition dummy columns to be inserted.

Value: n_dummyTransitionColumns

Example: 2

dummyLib

Specifies the default library to use when creating custom dummy devices.

Value: String

Example: MyLib

dummyCell

Specifies the default cell to use when creating custom dummy devices.

Value: String

Example: MyCell

dummyView

Specifies the default view to use when creating custom dummy devices.

Value: String

Example: MyView

Guard Ring Type

guardRingType

Determines the presence of the specified type of guard ring in the current Modgen array or sandbox.

Value: String. The valid values are:

• None (default): Does not look for guard rings.
• FGR: Identifies fluid guard rings.
• MPP: Identifies multipath part guard rings.
• IGR: Identifies identical guard rings.

Example: FGR

guardRingSubType

Determines the geometry configuration of the MPP or IGR guard ring in the current Modgen array or sandbox.

Value: String. the valid values are:

• ring (default): A single guard ring around the entire Modgen. This type is valid for MPPs guard rings and IGRs.
• pane: A guard ring around all devices as well as the entire Modgen. This type is valid for MPPs guard rings and IGRs.
• stripe: Strips of guard ring between one or more Modgen rows. This type is valid only for IGRs.

Example: pane

guardRingNet

Determines the net to which the guard ring geometry terminals are connected in the current Modgen array or sandbox.

Value: String (net name)

Example: net1

guardRingShape

Determines the surround style of the guard ring in the current Modgen array or sandbox.

Value: String. The valid values are rectangular and rectilinear.

Example: rectilinear

guardRingDefName

Determines an external guard ring definition in the Modgen array or sandbox.

Value: String

Example: myGuardRing1

guardRingSpacing

Specifies the spacing between the sides of a guard ring and the edges of its enclosed Modgen device. The value must be either equal to or greater than the minDRC value.

This value applies only to MPP guard rings.

Value: Integer (in user units)

Example: 3

guardRingLeftSpacing

Specifies the spacing between the left edge of a guard ring and the left edge of the enclosed Modgen device. The value must be either equal to or greater than the minDRC value.

This value applies only to MPP guard rings.

Value:     Integer (in user units)

Example: 3

guardRingRightSpacing

Specifies the spacing between the right edge of a guard ring and the right edge of the enclosed Modgen device. The value must be either equal to or greater than the minDRC value.

This value applies only to MPP guard rings.

Value:     Integer (in user units)

Example: 3

guardRingTopSpacing

Specifies the spacing between the top edge of a guard ring and the top edge of the enclosed Modgen device. The value must be either equal to or greater than the minDRC value.

This value applies only to MPP guard rings.

Value:     Integer (in user units)

Example: 3

guardRingBottomSpacing

Specifies the spacing between the bottom edge of a guard ring and the bottom edge of the enclosed Modgen device. The value must be either equal to or greater than the minDRC value.

This value applies only to MPP guard rings.

Value:     Integer (in user units)

Example: 3

guardRingSides

Specifies the sides of the Modgen array or sandbox to be enclosed by a guard ring. This value is applicable to MPP guard rings and IGRs.

Value: A comma-separated string. The valid values are top, bottom, left, and right.

Example: top, bottom

guardRingHorizontalStripeWidth

Specifies the vertical width of the horizontal guard ring strips in terms of either the number of fins or an absolute width value.

This value applies only to IGRs.

Value: Integer (in user units)

Example: 2

guardRingRowsBetweenStripes

Specifies the number of array rows between each guard ring stripe row in the array or Modgen sandbox.

This value applies only to IGRs.

Value: Integer (in user units)

Example: 2

guardRingBreak

Specifies whether the guard ring metal geometry <fill in here> in the Modgen array sandbox.

This value applies only to IGRs.

Value: Integer (in user units)

Example: 2

guardRingAddCorners

Specifies whether the corner guard ring devices must be added to the array or sandbox.

This value applies only to IGRs.

Value: Boolean. The default value is nil.

Example: t

Routing Type

router

Specifies whether the router must be invoked for the Modgen array or sandbox.

Value: String. The valid values are:

• none (default): Does not run any router.
• pinToTrunk: Runs the pin to trunk router

Example: pinToTrunk

horizontalInteriorChannelNets

rank = n_TemplateRank

Description: Specifies the rank of the template.

Valid Values: non-negative integer

The template with the lowest rank is considered the default value. This template is applied by the Apply Default Reuse Template to Target command.

routeEnable = t | nil

Description: Specifies whether the pin-to-trunk router is to be used to route the Modgen devices.

Valid Values: t and nil

When set to nil, all route-related parameters are ignored and a topology pattern is not created.

When routeEnable is set to t and router is set to nil, a topology pattern is created but the pin-to-trunk router is not called.

routeOverDevice = t | nil

Description: Allows horizontal routes to be generated over devices.

Valid Values: t and nil

horizontalChannelNets = l_netNames | nil

Description: (Optional) Lists channel nets for the horizontal trunks. If not specified (which is recommended), channel nets in the new Modgen are created based on the net connections.

Valid Values: l_netNames and nil

Default Value: nil, which indicates no channel nets are to be created.

Example:

list("net1" "net2" "net3")

horizontalOutsideNets = l_netNames | nil

Description: Lists the nets that are above or below the Modgen. When this parameter is not specified, outside nets are created based on connections.

Valid Values: l_netNames, nil

Default Value: nil, which indicates that no trunks are to be created above or below the Modgen.

Example: horizontalOutsideNets=list("net1 net2 net3")

horizontalTrunkWidths = l_netWidths | nil

Description: Specifies a space-separated list of horizontal trunk widths.

Valid Values: l_netWidths, nil

If a single value is specified, it is applied to all channel nets.

Default Value: nil, which indicates that the default values from either the technology file or a predefined WSP are used.

Example:

list(list("D1" 0.22) list("D2" 0.22))

horizontalNetOrder = l_netOrder | nil

Description: Specifies the net order of channel nets.

Valid Values: l_netOrder and nil

Default Value: nil

horizontalNetOrder values depends on the value of horizontalChannelNets.

trimTrunks = t | nil

Description: Specifies whether the ends of the horizontal trunks are to be trimmed while routing.

Valid Values: t and nil

shareHorizontalTracks = t | nil

Description: Specifies whether two nets can share the same horizontal trunk.

Valid Values: t and nil

horizontalTrunkLayerName = t_layerName

Description: Specifies the layer on which horizontal trunks are to be generated. This is a mandatory parameter.

Valid Values: t_layerName

twigGLayerName = t_layerName

Description: Specifies the layer in which the twigs that are connected to the gate terminal are to be generated. This is a mandatory parameter.

Valid Values: t_layerName

twigGLayerWidth = f_twigGLayerWidth

Description: Specifies the width of the gate net twigs.

Valid Values: f_twigGLayerWidth

twigSDLayerName = t_layerName

Description: Specifies the layer in which the twigs connected to the source and drain terminals are to be generated.

Valid Values: t_layerName

twigSDLayerWidth = t_twigSDLayerWidth

Description: Specifies the width of the source and drain gate twigs. This is a mandatory parameter.

Valid Values: t_twigSDLayerWidth

horizontalMinNumCuts = nil | n_numCuts

Description: Specifies the minimum number of cuts for the vias connecting the twigs to other objects.

Valid Values: nil and n_numCuts }

Default Value: 1

anchorReference = nil | t_refLayer

Description: Specifies the reference layer or the anchor from which the trunk chain must start.

Valid Values: nil and t_refLayer

firstHorizontalChannelTrackOffset = nil | f_offset

Description: Specifies the offset of the first horizontal channel track from the specified anchorReference value.

Valid Values: nil and f_offset

firstHorizontalOutsideTrackOffset = nil | f_offset

Description: Specifies the offset of the first horizontal track outside the channel from the specified anchorReference value.

Valid Values: nil and f_offset

firstHorizontalDeviceTrackOffset = nil | f_offset

Description: Specifies the offset of the first horizontal device track of the overDevice trunk chain.

Valid Values: nil and f_offset

enableVerticalTrunks = t | nil

Description: Specifies whether vertical trunks can be created. The default value is nil.

Valid Values: t and nil

verticalTrunkLayerName = t_layerName

Description: Specifies the layer on which vertical trunks are to be generated. The option can be set only if enableVerticalTrunks is set to t.

Valid Values: t_layerName

verticalTrunkWidths = l_netWidths | nil

Description: Specifies a space-separated list of vertical trunk widths. If a single value is specified, it is applied to all channel nets. The option can be set only if enableVerticalTrunks is set to t.

Valid Values: l_netWidths and nil

Default Value: nil, which indicates that the default values from either the technology file or a predefined WSP are to be used.

Example:

list(list("D1" 0.22) list("D2" 0.22))

verticalNetOrder = l_netOrder | nil

Description: Specifies the net order of vertical channel nets. The default value is nil because the default horizontalChannelNets is nil. The option can be set only if enableVerticalTrunks is set to t.

Valid Values: l_netOrder and nil

verticalMinNumCuts = nil | n_numCuts

Description: Specifies the minimum number of cuts for the vias connecting the twigs to other objects. The default value is 1. The option can be set only if enableVerticalTrunks is set to t.

Valid Values: nil and n_numCuts

firstVerticalTrackOffset = nil | f_offset

Description: Specifies the offset of the first vertical track from the specified anchorReference value.

Valid Values: nil and f_offset

verticalTrunkSide ="both" | "auto" | "left" | "right"

Description: Specifies the side along which vertical trunks are to be generated.

The option can be set only if enableVerticalTrunks is set to t.

Valid Values: left, right, both, and auto.

router {"none" | "pinToTrunk" }

Description: Specifies whether the pin-to-trunk router is to be used for routing.

horizontalChannelNetsDirection ="top" | "bottom" | "both"

Description: Specifies the direction of the horizontal channel nets, which is the direction from the trunk to the instance terminal.

Valid Values: top, bottom, both

Default Value: both

horizontalOutsideNetsDirection ="top" | "bottom" | "both"

Description: Specifies the direction of the horizontal nets that are outside channels.

Valid Values: top, bottom, both

Default Value: both