An industrial UV camera is a special type of camera that captures ultraviolet light and converts it into visible light. The principle is mainly based on the different wavelengths of ultraviolet and visible light, as well as the absorption and reflection characteristics of ultraviolet light by different substances. UV industrial cameras can effectively identify and detect product defects, improve product quality, improve efficiency, and reduce costs. It can be used in semiconductor inspection, material surface inspection, microscopic inspection, glass defect detection, jewelry defect detection, etc.
Let's take a look at two applications for semiconductors:
Bare wafer inspection.
The raw material for semiconductor manufacturing is monocrystalline silicon, the so-called bare wafer or substrate wafer. At the time of inspection, there are only a few contaminants or defects.
micron size. UV light, which has a shorter wavelength, is the most accurate at identifying surface defects on wafers. Bare wafers are irradiated with an ultraviolet light source and high-resolution images of the wafer surface are captured simultaneously with UV, visible, and SWIR cameras. Image analysis using advanced image processing algorithms then enables the identification and classification of various defects. There are several types of defects that can be detected by UV cameras. These include particulates (such as dust) that are accidentally introduced from the environment during the manufacturing process or scratches caused by improper handling.
Pattern round inspection.
The inspection of pattern circles involves identifying and analyzing defects or errors that may occur on the surface of the pattern during pattern lithography, such as wafer sheets.
Problems such as defects, misalignments, and missing features of patterns on the surface. During inspection, the wafer is irradiated with ultraviolet light, and the pattern on the surface of the wafer and the surrounding material will reflect or absorb the ultraviolet rays to varying degrees. The UV camera then captures an image of the surface of the pinhole and performs image analysis to determine the difference in reflected or absorbed UV light.
In order to ensure the perfect operation of electronic devices, it is required that the internal driving components of the devices, microchips, must have extremely high quality standards and reliability after production. Many of these manufacturing processes use UV light sources, which require the use of UV-sensitive cameras for quality inspection at all stages of the manufacturing process. UV cameras play a crucial role in ensuring the quality and reliability of semiconductor components due to their ability to detect defects and anomalies that are difficult to identify with other imaging techniques.
With the development of the electronics industry, the demand for high-quality UV cameras in the semiconductor manufacturing industry will undoubtedly continue to grow. By leveraging the advantages of UV cameras, semiconductor manufacturers can ensure that the quality and reliability of their products are of the highest standard, while minimizing costs.
If you want to know more about UV industrial cameras, you can go to the machine vision product information query platform.