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Width规则

Width Summary Defines the width of tracks placed on the copper (signal) layers.

Other Topics

Creating Design Rules

Design Rules

Width规则

Constraints

Min Width specifies the minimum permissible width to be used for tracks when routing the board. Specifying a value here

will apply to all signal layers.

(Default = 10 mil).

Max Width specifies the maximum permissible width to be used for tracks when routing the board. Specifying a value here will apply to all signal layers.

(Default = 10 mil).

Preferred Width specifies the preferred width to be used for tracks when routing the board. Specifying a value here will apply to all signal layers.

(Default = 10 mil).

Check Tracks/Arcs

Min/Max Width

Individually

checks individual widths of tracks and arcs fall within the minimum and maximum range.

(Default = enabled).Check Min/Max

Width for

Physically

Connected

Copper

checks the width of routed copper formed by a combination of tracks, arcs, fills, pads & vias fall within the minimum and maximum range. (Default = disabled)Characteristic

Impedance

Driven Width If the design needs to be routed to strict impedance requirements, ensure that this option is enabled. When the rule is configured in this mode, the routing width required on each routing layer is calculated based on the specified impedance, using the appropriate equation (microstrip or stripline) and the physical parameters of the

layer stack.

Once the rule is defined, as you route a net that falls under the scope of the rule, the track width will automatically be set to the width required to meet the specified impedance for that layer.

(Default = disabled).

Layers in layerstack only allows you to display and edit the width constraints for just the defined signal layers in the layer stack. When enabled, only the layers in the stack will be displayed in the Layer Attributes Table. When disabled, all signal layers will be displayed.

(Default = enabled).

Width规则

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