PCB Break off Areas
PCB's must have a break off area to allow for conveyor machines throughout the factory.

Break off width must be a minimum of 10mm from the edge of the board and must run along the longest edge of the PCB.

See FIGURE 4 below.


Tooling Strips / Tooling Hole Size and Position
Tooling strips are the break-off areas to hold the PCB on the automated conveyers throughout the factory.

PCB must have tooling holes to secure it to its particular work table whilst being populated. The hole size and position will be as follows:

Hole size: 4.0mm
Location: All 4 corners of PCB with centre of hole 5mm from both edges.

See FIGURE 4 below.

This tooling hole is mostly situated in the break off area on the edges of the PCB and will normally be done automatically by the PCB manufacturer.

NOTE:
Please state to PCB manufacturer that the PCB's are going to Technique for manufacture and the PCB's will be produced correctly with tooling strips and tooling holes.


Fiducial Mark Requirements
Fiducial marks are required for the automated placement of all SMT components. They are used as reference points by Auto placemen machines to establish XY co-ordinates for accurate component placement.

1) There must be 2 fiducals placed diagonally opposite each other ( on two diagonal corners of the PCB if possible) See Figure 5 below.


2) Fiducials should be created as a part in the component library, it will then appear in the pick and place data with a reference and XY
co-ordinates.

NOTE: This is important. Please see Figure 1a, XY Data sample.

3) Must be round and with a diameter of 1.5mm. A clear area of 2mm around each fiducial is required. See FIGURE 6 below.


Panelization requirements.

Optimum panel size (preferred): 150mm x 250mm including Break off areas.

Maximum panel size: 250mm x 320mm including Break off areas.

We can accommodate this size as a special case but quality problems due to this size may effect final yield.

PCB Number.

PCB must have a particular part number which must should include the following:

1) Customers PCB number.
2) Version number. First version will show as V1 for example.

The above constraints should be met by the PCB design Engineer before Gerber, CAD and Pick and Place data is issued.

NOTE: Although ALL the above data is not essential for the manufacture of PCB's at Technique if all or most of the requirements are met a quality PCB can be delivered more efficiently and on time. If Technique have to generate any of the files manually it can cause possible delays and induced errors.