In semiconductor manufacturing processes, fully automated wafer defect inspection technology imposes stringent requirements on optical imaging performance. The inspection encompasses both bright-field and dark-field modalities, with the majority of illumination sources employing high-brightness fiber optics to detect surface defects on silicon wafers (such as edge chipping, corner missing, and surface contamination). LOTS AUTOMATION newly upgraded second-generation high-brightness fiber-optic light source demonstrates a 60% luminance enhancement in the 2SLG250 model compared to the 2SLG150-W. Characterized by superior luminous efficacy and reduced heat generation, this advanced light source represents the optimal solution for semiconductor inspection applications.

Product Features 
◆ High brightness and high efficiency are achieved through a multi-group coupled lens design. 
◆ The appearance is simple and smooth, and the volume is more compact. 
◆ Five colors of R/G/B/W/CW (high color rendering) are standard. 
◆ The illuminance at 20mm can reach 15 million LX. 
◆ It is suitable for semiconductor microscopic module applications.

Illuminance characteristic diagram  
Model: LTS-2SLG250-W/2SLG150-W

Note: A straight-type optical fiber conduit with a total length of 1100mm, featuring a 100% dimming function and an 8mm optical fiber beam. The measured values from the optical fiber outlet to the respective irradiation distances (not guaranteed values).

Brightness comparison chart 
The 2SLG250-W has a brightness increase of over 60% compared to the 2SLG150-W

Image grayscale contrast chart  
Camera:ACA2440-20gm 
Lens:LTS-TC05110 
Camera exposure:130us

Micro-module wafer application diagram

Can be equipped with 4 different light-collecting lenses 
Illuminance distribution chart (LTS-HL)

Illuminance distribution chart (LTS-ML)

Light parameters

We would like to express our gratitude to all our customers and friends for your continuous support of LOTS company, We will continue to strive to improve our products and services, focus on the research and development of visual light sources, and dedicate ourselves to serving our customers. If you have any testing requirements, please feel free to contact us!  
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