Automated
Optical Inspection - The economic realities of quality control,
rework cost and need for customer confidence make Automated Optical
Inspection (AOI) a necessity in Circuit Board manufacturing environments
AOI can take a number of roles on the PCB production line. There are
a number of “captive” applications such as accurate component positioning
in the pick and place system, or screen checking in the paste printer,
and there are also stand-alone functions to which AOI is ideally suited.
YesTek ScanSpection AOI uses two basic algorithm groups to inspect component
and soldering. The first algorithm checks the component related parameters
at once, with these being entered to a Model training phase. The second
algorithm group is for solder and lead inspection and offers the ability
to use the optimum algorithm for the type of inspection to be carried
out. In addition the solder inspection and lead inspection can be attached
to a package type rather than component type to assist in programming.
Drawer Assembly
Desktop AOI using the same high performance scanner and software features
of the In-Line ScanSpection AOI. The board is loaded and unloaded using
the drawer facility allowing the operator to place the board on predefined
blocks. The positional accuracy of the board is not critical as the
fiducial alignment of the board ensures test repeatability.
In-Line
Fully automated inline AOI incorporating optical alignment to on-board
fiducials maintaining positional accuracy from board to board.
Faults reported to panel and board position. All faults can be stored
with pictures for use with Scanspections Rework Software. Full fault
classification facility for SPC analysis comes as standard. ScanSpections
simple programming and user interface ensures that high quality programs
can be quickly and easily created for production
This user friendly operator interface is so simple to use that training
can be carried out in less than 30 minutes.
Automatic scanner adjustment removes the possibility of operator error
as well as dramatically reducing set up times. A simple Green
pass and Red fail quickly
indicates suspect devices. The review mode allows closer examination
and classification on the devices with the option of collecting the
information for full SPC analysis.
The “Operator” environment Interacts with the rework server allowing
offline rework for high volume applications.
