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 pth_breakout_angle ). Range of breakout angle values= 0-180 where 0 means No Breakouts Allowed. |
Activation |
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Known Limitations |
In positive P&G layers no associated copper features are reported. |
In most cases these drills are drilled thru thermal pads; the
annular ring indicates the quality of the connection. With negative P&G
layers, the associated ID from the P&G layer is a thermal pad.