Specifications

prompted to verify the Device position. The three Devices are a Device
closest to the bottom left corner followed by a Device closest to the bottom
right corner, and then a Device closest to the top left corner of the board.
Each time a prompt dialog is displayed, the user should move the highlighted
ROI on the video window so that it is on top of the corresponding Device, and
then press OK on the prompt dialog. The prompt dialog is as shown:
When the OK button is pressed, the software records the Device position.
Based on the Device position of the three Devices located on the extreme
corners of the board, the ScanSpection system compensates for any
differences in the co-ordinate systems between the system that generated the
CAD data and the system reading it. The factors compensated are XY scaling
difference, board rotation, and XY axis skew.
After the co-ordinate system is adjusted, the system will move the Image to
view each Device one by one. If the Auto Train is not enabled the user is
prompted by the above dialog on every Device to verify the Device’s position
and size. The process is completed when all the Devices that are imported
are verified.
The Device import process can be aborted at any time by pressing the Cancel
button on the Confirm/Adjust Device Position dialog or the Stop button on
the main button bar. The Devices that have been imported up to this point will
remain in the Device list. To resume the import process, simply select Import
CAD Data from the file menu again. Since the Device information in the CAD
file merges with the Device information in the board setup, there is no danger
of importing the same Device twice.
On the Confirm/Adjust Device Position dialog there is a check box, Auto
Train Enable; checking it will enable the auto train feature. In auto-train, the
system automatically searches for the Device in the expected position; if the
Device is found the system adds that Device into the Device list for inspection
and then moves on to the next Device in the CAD data. The training process
continues automatically (unattended), stopping only if the expected Device is
not found or the Device is not in the Device library. If the Device is not found
the following dialog appear.