3D AOI is a core inspection system in electronics manufacturing, used to verify components mounted on printed circuit boards (PCBs). Traditional 2D AOI relies on flat image analysis, making it difficult to detect defects that require height information, such as solder bridges, insufficient solder, or tilted components.
By contrast, 3D AOI uses high-precision sensors based on Laser Optical Triangulation (LOT) to generate images with true three-dimensional height data, significantly improving inspection accuracy and reliability.
PARMI’s proprietary TRSC (Textured Range Scan Camera) sensor employs dual lasers and a high-speed camera to capture both 2D color images and 3D height data in a single scan. This approach ensures stable and accurate results even with diverse materials and surface conditions, while overcoming the speed and brightness limitations of conventional Phase Measuring Profilometry (PMP).
Advanced functions further strengthen inspection performance. 3D AOI compensates for PCB warpage along the Z-axis, minimizes vibration and thermal noise, and reduces shadow effects to maintain measurement stability. In addition, AI-powered OCR and Auto Teaching reduce character inspection errors and shorten teaching time, increasing overall productivity.
With TRSC technology, PARMI’s Xceed 3D AOI system has become an essential solution for achieving quality assurance in SMT production lines.
FAQ
Q1. What is the main difference between 2D AOI and 3D AOI?
A1. 2D AOI relies on flat images, making it difficult to detect height-related defects. 3D AOI provides real height data, enabling accurate detection of issues like solder bridges or tilted components.
Q2. How does 3D AOI improve inspection accuracy?
A2. It uses Laser Optical Triangulation (LOT) sensors to generate precise 3D images, ensuring higher accuracy and reliability across different materials and surfaces.
Q3. What role does TRSC technology play in 3D AOI?
A3. Parmi’s TRSC (Textured Range Scan Camera) captures both 2D color and 3D height data in one scan, improving speed, stability, and inspection accuracy.
Q4. Can 3D AOI adapt to challenging production conditions?
A4. Yes. It compensates for PCB warpage, minimizes vibration and thermal noise, and reduces shadow effects to maintain stable and precise measurement.
Q5. Why is 3D AOI essential for SMT production lines?
A5. It ensures proactive quality assurance, prevents defects early, and boosts productivity, making it a key solution for reliable SMT manufacturing.
