The placement of components
Once the netlist is exported, it is imported into the routing
software which translates each line of code into connections and
with all the indications of the components present.
Positioning is one of the most critical phases of the Master PCB
because the choice and positioning criteria adopted for the
components will influence the routing of the tracks.
A good positioning at this stage will avoid many problems of
interference, crosstalk, and coupling of critical signals.
The positioning of the components will always be carried out taking
into account the electrical functions of the components, avoiding
the no-go areas for placement and for the routing of the tracks.
Track routing is the interconnection of all the connections present
in the wiring diagram between the components.
The tracks that will be created will connect the pin pads of the
components and will use multiple interconnection layers to
concentrate all the connections inside the PCB.
Each layer is interconnected by metalized holes, also called vias.
The size of the tracks will be suitably calibrated according to the
electrical constraints of the signals that will cross the board.
All electrical insulation (track-track, track-pitch, pitch-pitch,
track-floor, floor-via, track-away, pitch-away, etc.) must be
carefully chosen.
