AutoVue


Design Rule Checks

For design rule checks that have values, you can change the unit of measure and change the value of each check. The available design rule checks are:

Type
#
Design Rule Check
Description
Clearance
1
Min.Clearance
(Pad > Pad)
Specify the minimum pad to pad clearance on the same physical layer.
Note Only the pad outline is considered.
 
2
Min.Clearance
(Pad > Trace)
Specify the minimum pad to trace clearance and pads on the same physical layer.
Note Only the pad outline is considered. Does not take into account traces connected to a pin (pad) on the same net.
 
3
Min.Clearance
(Trace > Trace)
Specify the minimum trace to trace clearance on the same physical layer.
Note Does not take into account directly connected traces.
 
4
Min. Clearance
(Comp > Comp)
Specify the minimum component to component clearance on the same physical layer (component top side or component bottom side).
Note Only the logical layer that defines the actual outline of the component is considered.
Note A component entity is usually made up of geometrics on different logical layers (silkscreen, keepout, etc.), but only the logical layer that defines the actual outline of the component is considered.
Manufacturing
5
Min. Annular Ring
Specify the distance between the pad outline and the outline of its drill hole on all physical layers.
Note The two outlines (geometries) are part of the pin (pad) entity but on different logical layers.
 
6
Min. Pad Diameter
Specify the minimum diameter of a pad.
Note Only applicable to rounded pads.
 
8
Acute Angle
(in deg.)
Specify the minimum acute angle between connected traces on the same physical layer.
Note Only two traces belonging to the same net should be considered.
 
9
Min. Drill Hole Size
Specify the minimum diameter of the drill hole size allowed.
Note Only applicable to rounded pads.
 
10
Max. Drill Hole Size
Specify the maximum diameter of the drill hole size allowed.
Note Only applicable to rounded pads.
Electrical
7
Max. Via Count
Specify the maximum via count allowed for a net.
 
11
Min. Route Width
Specify the minimum route (trace) width allowed in the design.
 
12
Max. Route Width
Specify the maximum route (trace) width allowed in the design.
 
13
Min. Route Length
Specify the minimum route (trace) length allowed in the design.
 
14
Max. Route Length
Specify the maximum route (trace) length allowed in the design.
 
15
Empty Nets
Select this checkbox if you want to check for any nets that are not connected to any pin, via, trace and power/ground plane.
 
16
Un-routed Traces
Select this checkbox if you want to check for any trace segment that is not connected to another trace segment, pin, via on either end.
 
17
Single Connection
Select this checkbox if you want to check for a net connected to only one pin.
Exception: power and ground nets.
 
18
Short Circuit
Select this checkbox if you want to check for intersections (on the same layer) of traces that belong to different nets.
Note Trace entities will be divided into n sets where n is the number of nets in the design.
 
19
Unconnected Pin
Select this checkbox if you want to check for any pin (pad) that is not graphically intersected with any traces on the same physical layer.

Verifying a Design

  1. Select Analysis > Verify Design from the AutoVue main menu.
  2. A design dialog appears.

    Note You can also click the Verify Design icon on the AutoVue toolbar

  3. To enable a Design Rule, select the checkbox beside the Design Rule.
  4. To disable a Design Rule, clear the checkmark.

    Note You can sort the Design Rules by Enabled, Description or Value by clicking the column heading.

  5. To add a value to the selected Design Rules, double-click in the value box and enter a value.
  6. Note The Design Rule must be enabled to be able to add a value.

  7. In the Maximum Violation text box, enter the maximum number of results you want to display in the Results text box.
  8. From the Distance Units drop down list, select the unit you want to use as the unit of measure.
  9. Click Verify.
  10. Verify button changes to Stop.

    Note To stop the Design Verification process at any point, click Stop.

    When the process is complete, the total number of errors found during the Design Verification process, up to the maximum number specified in the Maximum Violation text box, appear in the Results list.

  11. To view the description of a violation result, select the violation from the Results list.
  12. The description appears in the Description text box. The description includes information such as the type of violation, the location where it occurs (x- and y-coordinates), the component or entity it affects and the actual value measured.

    Note When you select a violation result, AutoVue zooms to the entity or set of entities that were affected and highlights them on the drawing.

  13. Continue to select violation Results to view its description.
  14. Note Click Reset to restart a new check.

  15. Click Close to close the dialog.

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