LED Pin Pitch Measurement
Detection Purpose: LED Pin Pitch Measurement
Detection Content: LED Pin Pitch Measurement
Reference Light Source: RING LIGHTS
Analysis:
Using a surface light source for back illumination, the metal outline of the LED pins is made black while the background is made white. Additionally, since LED pins are cylindrical, using this method for imaging results in more accurate edge detection of the pins compared to other methods.
Industry Overview
The application of machine vision in the semiconductor industry has become increasingly common, with its scope expanding to encompass the detection and measurement of various aspects such as semiconductor appearance defects, dimensions, quantities, flatness, spacing, positioning, calibration, solder joint quality, and curvature.
Detection content includes:
- Inspection of electronic component appearance
- Inspection of SMD (Surface Mount Device) products
- Inspection of silicon wafer appearance
- Inspection of IC (Integrated Circuit) chips
- Inspection of flatness in electronic connectors
Challenges in illumination:
The diversity of product forms, high precision detection requirements, and the fact that product characteristics are not always obvious due to materials and manufacturing processes, result in high demands for illumination.