Solder paste inspection (SPI) identifies critical defects in PCB assembly, including insufficient solder (low volume), excessive paste (bridging), misalignment, and uneven deposition. Common issues also involve solder slumping, solder balling, and paste contamination. These defects can lead to poor electrical connections, shorts, or open circuits. SPI systems use 3D imaging and laser scanning to detect deviations in height, area, and volume. Early detection helps optimize stencil printing and prevent downstream reflow defects, improving manufacturing yield and reliability in surface-mount technology (SMT) processes.
| Model | REFINE-XS |
| Inspection Module | |
| Camera Specification | 5M High-frequency Industrial Camera, High Frame Number (Factory Setting); 12M Option |
| Pixel | 20μm, 15μmꢀ(Factory Setting) |
| FOV(single field of view) Range | 40×40 mm, 30×30 mm (Factory Setting) |
| LED | RGB + TOP |
| Light Source | 0 – 550 μm |
| Height Inspection Resolution | 0.36 μm |
| Height Inspection Accuracy | 1μm (Based on the actual solder paste/calibration block) |
| Inspection Item | Volume, Area, Height, X/Y Position, Bridging, Shape, etc |
| Defective Type | Excessive/Insufficient/Missing paste,Bridge,2D & 3D Paste displacement, Shape deformity, Dust, etc |
| Repeatability (Volume, Area, Height) | <1% @3sigma |
| GR & R (Gauge Reproducebility and Repeatability) | < 10% (@6sigma tolerance = +/- 50%) |
| Inspection Speed | 0.35Sec / FOV |
| Conveyor & PCB Size | |
| Max PCB Size | 460×410 mm |
| Min PCB Size | 50×50 mm |
| PCB Up-Clearance | 30 mm |
| PCB Bottom-Clearance | 30 mm |
| PCB Thickness | 0.5-5 mm |
| Max PCB Warpage | ±3 mm |
| PCB Transfer Height | 2.5mm |
| PCB Transfer Height | 900±20 mm |
| Max PCB Weight | 5KG |
| Frame & Others | |
| Base & Frame | Integra1 steel casmting frame; firmly, ensure high accuracy of inspection |
| Dimensions and Weight | 947x1321x1600mm (W x D x H) 950KG |
| Power Supply | AC 220V 1Φ 50/60Hz |
| Power | 2.2KW |
| Communication Interface | SMEMA |
| Air Supply | 4-6bar，5L/min |
| Operating Condition | 5-40℃, 15-90% RH |
| Options | |
| 1. BarcodeReader | 4. Repair Station (PC) |
| 2. 3D Calibration Target | 5. Infared Muti-touch LCD + Voice Control |
| 3. 2D Calibration Glass | 6. Offline Editing Software (License Key) |
| The above contents are subject to change without further notice! | |
