Purpose |
A hole that is supposed to be connected to copper must have a sufficiently large annular ring of copper. If this is not adhered to, shifts of the drill and the imaging process may cause the drill not to have sufficient contact. |
Function |
Reports, for drills embedded in copper, the distance to the closest laminate, if less than the action parameter pp_d2c . An option is available to allow breakouts by specifying the breakout angle (as defined by the ERF parameter via_breakout_angle ). Range of breakout angle values = 0-180 where 0 means No Breakouts Allowed. |
Activation |
The ERF variable
classify_via2t determines whether the system will distinguish
between PTHs and vias. |
Known Limitations |
In positive P&G layers no associated copper features
are reported. |