Design Rules categories
Fusion divides design rules into categories based on their type. Each category has two checking levels: Live DRC and Manual DRC. By default, Fusion enables all rule categories for Manual DRC.
Fusion splits rule categories into unary and binary types:
- Unary Rules: Apply to a single object, for example, Copper Width or Drill Size.
- Binary Rules: Apply to two objects, for example, Copper Clearance or Board Outline Clearance.
Rule Category Levels
Live DRC
When enabled, Fusion checks the rule categories during a Live DRC run. This occurs at the end of any interactive workflow when the data model changes.
Manual DRC
When enabled, Fusion checks the rule category during Manual DRC runs. You can run Manual DRC using one of the following methods:
DRCon the command line Interface (CLI).- Click Check Design Rules on the rules toolbar.
Rule Categories Definition Table
| Category Name | Enabled | |
|---|---|---|
| Live DRC | Manual DRC | |
| Copper Clearance | Yes | Yes |
| Components Exclude Clearance | Yes | Yes |
| Solder mask - Silkscreen Clearance | Yes | Yes |
| Board Outline Clearance | Yes | Yes |
| Drill Clearance | Yes | Yes |
| Copper - Restrict Clearance | Yes | Yes |
| Via Restrict Clearance | Yes | Yes |
| Unconnected Lines | Yes | Yes |
| Drill Size | Yes | Yes |
| Copper Width | Yes | Yes |
| Acute Angle | Yes | Yes |
| Air Wire | Yes | Yes |
| Wire Stub | Yes | Yes |
| Matched Signal Lengths | Yes | Yes |
Note: To get the best Preferred Value for the current rule category, enable the Manual DRC level. This checks all rule categories.