Application Case | Do3think Empowers a Leading PCB Inspection Company to Realize Digital Upgrades for AOI Stations

With the rapid expansion of the electronics-manufacturing sector, PCB inspection—critical for guaranteeing product quality and performance—faces ever-tighter precision and testing standards. Traditional inspection systems struggle with complex defects such as residual copper after etching, ink occlusion, and off-center holes. These systems are often hampered by poor image quality, heavy noise, and weak light-source adaptability, resulting in high false-positive rates, low detection rates, and serious impacts on production efficiency and product yield. Against this backdrop, industrial cameras featuring higher sensitivity, higher resolution, and superior imaging consistency have become pivotal in propelling the PCB industry to new quality heights.

Product Technology Advantages:High Speed & High Precision, Stable & Anti-Interference

Targeting the above pain points, Do3think’s DSD16K true-color line scan cameras portfolio delivers systematic breakthroughs that comprehensively elevate PCB inspection quality and efficiency. The series comprises three models—DSD16KC, DSD16K6C, and DSD16K12C—perfectly matching every precision and sensitivity requirement across various inspection tasks.

• Exceptional Image Quality
  Built on 5 µm pixels, the 6-line and 12-line models leverage TDI brightness stacking to dramatically boost sensitivity and reveal fine details. The series also delivers outstanding sharpness (transition pixels ≈ 2 pixels, high acutance), high SNR, and accurate color reproduction, satisfying the stringent imaging demands of high-precision PCB inspection.
• High Line Rates for High-Speed Lines
  While retaining TDI sensitivity advantages, the DSD16K true-color family achieves line rates exceeding 40 kHz. The flagship DSD16K12C reaches 45 kHz, not only matching current line speeds but also reserving headroom for future upgrades—empowering customers with a “one camera, multiple generations” strategy.
• Time-Division Strobe in TDI + Multi-Channel Flat-Field Correction
  The 6C and 12C models pioneer time-division strobe within TDI mode, ensuring high sensitivity for every channel. In addition, the series is the first in the industry to support multi-channel flat-field correction, enabling independent uniformity correction for each light source. This minimizes brightness differences between sensor and illumination, dramatically improving image quality and algorithm stability while cutting false rejects and escapes.
• Unlimited Image Height, No Stitching Required
  Paired with Do3think’s XGG340 fiber-optic frame grabber, the DSD16K true-color line scan cameras support unlimited image-height capture in a single scan, greatly simplifying image-processing workflows and accelerating inspection throughput.

• Dual-Fiber 20G Platform & Robust Monitoring
  A dual-fiber 20G platform delivers high-bandwidth data transmission over distances > 300 m with exceptional EMI immunity, easing deployment in harsh industrial environments. The line scan cameras also provide real-time monitoring of temperature, voltage, and fiber-link health, ensuring stable, reliable operation.

Application Case:PCB-AOI Inspection

In the PCB-AOI segment, a well-known inspection-equipment manufacturer selected Do3think’s DSD16K6C true-color camera to replace its legacy vision module, achieving remarkable improvements. Ten to fourteen line scan cameras are installed per machine, arranged in upper and lower rows within reserved spaces, fully leveraging their high-resolution advantage.

In operation, the line scan cameras support online inspection of PCBs down to 1.8 mil / 1.8 mil line width/spacing. Under varying conditions, the system delivers flawless performance—no frame drops or color distortion—enabling stable, continuous inline inspection with an accuracy ≥ 99.99 %.

Today, Do3think’s DSD16K true-color series has been mass-deployed on the production lines of multiple top-tier PCB manufacturers, covering core stations such as AOI and AVI. Its superior imaging quality and broad adaptability have earned unanimous market acclaim. This success not only drives a leap in PCB inspection-equipment performance but also sets a new technological benchmark for electronics manufacturing, semiconductor packaging, and other industrial inspection fields.

Going forward, Do3think will remain committed to independent R&D and technological innovation, continuously delivering stable, reliable, and user-friendly high-performance industrial cameras. We will keep empowering high-end manufacturing sectors such as 3C electronics, semiconductors, and new energy, helping China’s industrial intelligence reach new heights.