Assign different routing design rules to different areas

CADSTAR Rules-by-Area

CADSTAR Rules-by-AreaThe Rules-by-Area package is a powerful extension to the CADSTAR P.R.Editor XR 2000 tool-set that enhances Zuken’s routing technology by allowing the association of different design rules to different areas of the design.

With Rules-by-Area, tracks can be reduced in width according to the rules defined by the area they are routed through. It is now possible to execute the routing manually or automatically. Other rules that can be defined for specific areas include via sizes and also the use of blind or buried via technology.

Spacing rules for any area may be redefined which is especially useful around small complex dense components such as BGAs, Wire Bonded CSPs and SMDs allowing for 100% error free routing.
High speed routing will also obey the rules defined by the area. There is no limit to the number of areas that may be defined, and these areas may be of any shape and on any
layer desired.

Top features and benefits

  • Benefits you when you are forced to compromise your design rules when using BGAs
  • Helps you when yield is a problem in the design of fine-pitch devices
  • Incorporate overlapping areas that can be any shape into your designs
  • Lets you copy areas, while also obtaining and copying the associated technology restriction rules.

Design Rule Checks by Area

Required routing rules for each area are added in CADSTAR. The designer can take advantage of the online design rules checking feature in P.R.Editor, while routing in areas with the alternative rules set. This will highlight any error condition as defined by the rules for the current area with the further advantage that all areas may be routed error free without the need to change the routing rules that are obeyed.

Knowing that all the design rules will be obeyed, the designer can auto-route the entire PCB, or route manually with the tool highlighting any non-compliance to the preset constraints.

Fully definable rule sets per area

For each area that is placed on the design you can set different track spacing, net routing widths and a via sizes. This gives outstanding routing flexibility when specifying and using micro-vias, fine-line and very small tracks, vias and pad spacing.