Applications > ScanVision
HYLAX proprietary ScanVision Laser system incorporates vision camera system, in-line with laser beam path, through the galvanometers beam positioning system. Realtime Vision compensation for workpiece drift or fiducial find accurate to a few microns tolerance can be achieved at blinding speed of a few milliseconds in laser processing systems(welding, marking, cutting, drilling etc.).
For more detail application description, click here.
Scanvision
IC Wrong orientation check & marking
·Pre-mark wrong orientation check
·High speed vision check and mark
·GUI, easy to use, yet very powerful
Scan vision was used to detect the orientation of each IC. If a wrong orientation is being detected, the alarm will sound and operator will rotate the ICs. As we customise our software, we can also program it such that it will skip the IC with the wrong orientation or rotate the marking in the software and mark the IC with the correct orientation
add-on marking
·Previous markings were being used as the fiducial
·The text “Add On” was marked later after the vision local the fiducial
Scan Vision can also be used for adding new marking onto the existing marking. In this case, the previous marking will be used as the fiducial, eg “Mark” and the new marking “Add On ” is added beside it.
TFT Glass Marking System
Material tracking data markings are needed on specific location of the Flat Panel Display with chrome coating on it. This is done mainly at the beginning of the manufacturing process, on a big piece of uncut TFT glass panel. Those data marks are marked onto every individual subpanel.
In most cases, marking specs allows a maximum of 15 um positioning tolerance. ScanVision solution is very beneficial to this system. An XY gantry transports the dual ScanVision Lasers to mark the subpanels section by section. With the built-in, high accuracy vision compensation, all marks on the subpanels can be done within the required tolerance, without needing a highly precise mechanical positioning system. As the marking is using 2D codes, the image each mark is then captured by the same camera and decoded for a good mark.
RAPID PRECISION MICRO WELDER
·High UPH - 4x faster compare to fixed optics laser welding system
·Micron level accuracy scanhead welding system
·Rapid precision micro welding is required in many micro precision engineering parts, for example, HDD head gimbal assembly (HGA)
Scan vision was later implemented which greatly improve the UPH.
FPD PANEL TEST CIRCUIT CUTTING
·Scan vision is used to find the fiducials for the cutting position
·+/- 10um accuracy on cutting position
·Improve throughput tremendously by changing from X-Y stage to scan vision
Trimming on flat panel display. The lower image showed the enlarge picture of the orange box in the top image. High accuracy is required as the trimming location is very small
Quartz Crystal Trimming
·Spot size of 30-35um to remove crystal coating
·Real-time measurement of crystal frequency
·+/-15um accuracy on trimming position
·ScanVision features help to improve UPH greatly