With the 3XI-M110, Saki offers a compact, lightweight inline 3D CT X-ray device for the inspection of assembled PCBs. It reduces both the dose of X-rays and the duration of X-ray exposure during the inspection and offers innovative functions for use in solder joint inspection as part of PCB assembly technology.
In particular, the X-ray inspection device ensures the quality of hidden solder joints in bottom electrode packages, such as BGAs, LGAs and QFNs, as found in the advanced embedded devices of telecommunications and automotive products.
Planar Computed Tomography (PCT) provides precise volume measurement and shape reconstruction to detect voids, head-in-pillows (HiP) and other difficult-to-identify defects. The hardware platform of the 3Xi-M110 is 1,380 mm wide and weighs 3.1 kg. This makes it 40 % lighter with a 25 % smaller footprint than its predecessor. The production area saved and the ease of installation significantly improve production operations.
Despite its lighter cast iron frame, the 3Xi-M110 retains its accuracy and rigidity required for stable operation. In addition, the imaging area has been optimized for PCB sizes up to 360 x 330 mm (W x L). A two-stage image capture is available for larger, 360 x 510 mm (W x L) boards. Double motor driven and equipped with a high-precision linear scale from Magnescale
the system delivers maximum speed and accuracy. In addition, the improved PCT technology algorithm increases the image acquisition speed by 30 % and reduces the cycle time in the production line.
Another outstanding feature is Saki's revolutionary X-ray tube, which can reduce X-ray exposure by up to 70 %. This is achieved by switching on the X-rays only at the time of image acquisition. An exposure dose simulator allows the user to monitor the radiation dose. Based on this information, the procedure and magnification for releasing the X-rays can be adjusted. The new design of the X-ray tube does not require regular maintenance or replacement of spare parts. The integrated monitoring system signals when the tube needs to be replaced.
