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LY4020-A
This Powerful 105um 405nm 20W Violet Fiber Coupled Laser Module is a professional-grade core component exclusively engineered for lithography equipment, integrating 405nm violet laser’s high-energy photon characteristic, 20W high-power output, and 105μm precision fiber coupling transmission. It delivers stable, focused laser energy for photoresist exposure and micro-patterning, becoming a key part in semiconductor, PCB, and microelectronic lithography systems—ensuring high-resolution, high-efficiency lithography processing.
Core Technical Advantages for Lithography Equipment
- 405nm Violet Wavelength Lithography Optimization: 405nm is the optimal wavelength for mainstream photoresists (positive/negative tone), enabling efficient photon absorption to trigger photochemical reactions. The 405nm 20W fiber coupled laser supports sub-micron level resolution in lithography processing, outperforming longer wavelengths in fine pattern rendering—critical for semiconductor chiplet and high-density PCB circuit manufacturing.
- 20W High Power for Fast Exposure: With stable CW output, the 20W high power accelerates photoresist exposure speed by 40% compared to 10W modules. It shortens exposure time per unit area to ≤50ms/cm², meeting high-throughput requirements of mass-produced lithography equipment while ensuring uniform energy distribution.
- 105μm Fiber Coupling Precision Transmission: Equipped with 105μm core diameter silica fiber (numerical aperture NA=0.22, coupling efficiency ≥85%), it transmits laser energy with minimal loss. The fiber’s small core ensures a focused beam spot for precise photoresist patterning, and its flexibility allows alignment with lithography equipment’s optical path—reaching narrow or complex exposure areas.
- Lithography-Grade Stability & Reliability: Adopts high-power semiconductor laser array and active cooling system (water cooling + heat sink), maintaining stable operation at 20℃-25℃ (lithography process temperature). It supports 24/7 continuous exposure (service life >1,000 hours) with power drift ≤0.5%/1000 hours—avoiding lithography pattern distortion caused by power fluctuations.
| Wavelength | 405nm |
| Output Power | 20W |
| Working Voltage | 24V |
| Fiber Length | 1.5M |
| Fiber Core Diameter | 105/125um (Customizable) |
| Coupling Efficiency | >85% |
| Housing Size | 354*207*44mm (Customizable) |
| Lens | Optical Glass |
| Lifespan | > 10,000 hours |








We have over 15 years of experience with Lasers. We offer professional OEM& ODM service for laser modules!
| Item | Parameter | ||||
| Wavelength | 375-405nm | 425-488nm | 515-520nm | 635-670nm | 780-980nm |
| Single Diode Module Optical Power | 20mW-3W | 20mW-3W | 10mW-1.6W | 5mW-2.5W | 5mW-75W |
| Multi Diodes Module Optical Power | 3W-200W | 6W-500W | 1.6W-50W | 2.5W-30W | 75W-100W |
| Operating Voltage | 3-5V/6V/ 12V/ 24V/ 30V/ 110V/ 220V/ 240V etc. | ||||
| Beam Mode | Dot/ Line/ Cross/ Grid/ Muti-lines/ DOE etc. | ||||
| Fan Angle Options of the Line Beam | 5°/10°/15°/20°/25°/30°/45°/60°/90°/110°/130°/180° etc. | ||||
| Optical Lens | Acrylic lenses, glass lenses, wave lenses, Powell lenses etc. | ||||
| Dimension | 4*8mm/ 6*10.5mm/12*15mm/9*21mm/16*66mm/ 33*33*55mm etc. | ||||
| CDRH Class | class1/class2/class3R/class3B/class4 | ||||
This Powerful 105um 405nm 20W Violet Fiber Coupled Laser Module is a professional-grade core component exclusively engineered for lithography equipment, integrating 405nm violet laser’s high-energy photon characteristic, 20W high-power output, and 105μm precision fiber coupling transmission. It delivers stable, focused laser energy for photoresist exposure and micro-patterning, becoming a key part in semiconductor, PCB, and microelectronic lithography systems—ensuring high-resolution, high-efficiency lithography processing.
Core Technical Advantages for Lithography Equipment
- 405nm Violet Wavelength Lithography Optimization: 405nm is the optimal wavelength for mainstream photoresists (positive/negative tone), enabling efficient photon absorption to trigger photochemical reactions. The 405nm 20W fiber coupled laser supports sub-micron level resolution in lithography processing, outperforming longer wavelengths in fine pattern rendering—critical for semiconductor chiplet and high-density PCB circuit manufacturing.
- 20W High Power for Fast Exposure: With stable CW output, the 20W high power accelerates photoresist exposure speed by 40% compared to 10W modules. It shortens exposure time per unit area to ≤50ms/cm², meeting high-throughput requirements of mass-produced lithography equipment while ensuring uniform energy distribution.
- 105μm Fiber Coupling Precision Transmission: Equipped with 105μm core diameter silica fiber (numerical aperture NA=0.22, coupling efficiency ≥85%), it transmits laser energy with minimal loss. The fiber’s small core ensures a focused beam spot for precise photoresist patterning, and its flexibility allows alignment with lithography equipment’s optical path—reaching narrow or complex exposure areas.
- Lithography-Grade Stability & Reliability: Adopts high-power semiconductor laser array and active cooling system (water cooling + heat sink), maintaining stable operation at 20℃-25℃ (lithography process temperature). It supports 24/7 continuous exposure (service life >1,000 hours) with power drift ≤0.5%/1000 hours—avoiding lithography pattern distortion caused by power fluctuations.
| Wavelength | 405nm |
| Output Power | 20W |
| Working Voltage | 24V |
| Fiber Length | 1.5M |
| Fiber Core Diameter | 105/125um (Customizable) |
| Coupling Efficiency | >85% |
| Housing Size | 354*207*44mm (Customizable) |
| Lens | Optical Glass |
| Lifespan | > 10,000 hours |








We have over 15 years of experience with Lasers. We offer professional OEM& ODM service for laser modules!
| Item | Parameter | ||||
| Wavelength | 375-405nm | 425-488nm | 515-520nm | 635-670nm | 780-980nm |
| Single Diode Module Optical Power | 20mW-3W | 20mW-3W | 10mW-1.6W | 5mW-2.5W | 5mW-75W |
| Multi Diodes Module Optical Power | 3W-200W | 6W-500W | 1.6W-50W | 2.5W-30W | 75W-100W |
| Operating Voltage | 3-5V/6V/ 12V/ 24V/ 30V/ 110V/ 220V/ 240V etc. | ||||
| Beam Mode | Dot/ Line/ Cross/ Grid/ Muti-lines/ DOE etc. | ||||
| Fan Angle Options of the Line Beam | 5°/10°/15°/20°/25°/30°/45°/60°/90°/110°/130°/180° etc. | ||||
| Optical Lens | Acrylic lenses, glass lenses, wave lenses, Powell lenses etc. | ||||
| Dimension | 4*8mm/ 6*10.5mm/12*15mm/9*21mm/16*66mm/ 33*33*55mm etc. | ||||
| CDRH Class | class1/class2/class3R/class3B/class4 | ||||