The Working Principle and Application of Laser Direct Imaging Equipment

Laser direct imaging (LDI) equipment is an advanced imaging technology widely used in the exposure process in PCB manufacturing. Compared with traditional exposure technology, laser direct imaging equipment uses ultraviolet laser technology, which can provide clearer and higher quality imaging, especially suitable for mid-to-high-end PCB manufacturing. 

Through precise control of the ultraviolet laser, LDI technology can expose directly on the surface of the printing material, thereby greatly improving production efficiency and product quality, and reducing errors in the traditional exposure process.

Working Principle of Laser Direct Imaging Equipment

Laser direct imaging equipment uses high-precision 405nm ultraviolet laser modules for exposure. The biggest advantage of LDI technology is that it can avoid quality issues caused by alignment deviations, image distortion, and other problems in traditional exposure processes. In traditional exposure, film and related equipment are needed for processing, while laser direct imaging equipment eliminates the use of film, saving time and costs, and can effectively improve imaging accuracy.

Features of PTC Laser Direct Imaging Equipment

• High-precision Imaging: The resolution of laser direct imaging equipment is up to 1270dpi / 2540dpi, supporting 133 LPI (lines per inch), and can accurately reproduce complex patterns and details.

  
  

• Efficient Exposure: The equipment can complete the exposure of a 1000mm×1000mm screen in just 3 minutes, greatly improving work efficiency. At the same time, precise exposure alignment technology saves a lot of preparation time, reducing labor intensity and time costs.

  
  

• Low-cost Operation: Using DMD direct imaging technology, laser direct imaging equipment does not require the film necessary for traditional exposure, avoiding quality issues caused by film wear or unstable expansion and contraction, thereby reducing costs. Additionally, the three-step process of traditional exposure is simplified into a single step with LTS LDI, achieving fast, precise, and low-cost plate making.

Applications of Laser Direct Imaging Equipment

Laser direct imaging equipment has a very wide range of applications, especially in the following fields:

• PCB Manufacturing: In the process of PCB (printed circuit board) manufacturing, laser direct imaging equipment is used to accurately expose circuit patterns. Compared with traditional exposure technology, LDI technology can significantly improve imaging quality, meeting the demands of high-precision PCB manufacturing.

  
  

• Screen Printing Plate Manufacturing: Laser direct imaging equipment is widely used in the production of screen printing plates, avoiding the use of film and complex alignment processes in traditional exposure, reducing material waste and operational complexity, and ensuring high-precision imaging results.

  
  

• Other Electronic Product Manufacturing: LDI technology is also used in other electronic product manufacturing fields that require precise exposure and pattern transfer, ensuring high quality and stability of the products.

PTC's laser direct imaging equipment has broad market application prospects. By combining advanced ultraviolet laser technology and DMD core components, PTC's laser direct imaging equipment can provide customers with efficient, precise, and low-cost imaging solutions. Whether in PCB manufacturing, screen printing, or other high-precision manufacturing fields, PTC's laser direct imaging equipment can help customers greatly improve production efficiency and product quality while reducing production costs.