#Japan #Kyoto #Semiconductor #Nuvoton #Laser Diode

Nuvoton Technology Launches High-Power Ultraviolet Laser Diode

On January 20, 2026, Nuvoton Technology Corporation Japan (NTCJ) proudly announced the commencement of mass production for its cutting-edge high-power ultraviolet laser diode. This innovative device operates at a wavelength of 379 nm and offers an impressive output of 1.0 W, packaged in a compact 9.0-mm diameter CAN package (TO-9). It is not only a technical achievement but also a significant advancement in the field of ultraviolet semiconductor lasers, facilitating improvements in maskless lithography, an essential technology for modern semiconductor packaging.

Key Features of the New Laser Diode

The high output power, short wavelength, and exceptional longevity of this laser diode represent a trifecta that has historically been challenging to achieve. NTCJ has expertly crafted this product through its proprietary device structure combined with advanced heat-dissipation techniques. This innovation addresses past limitations and enhances fine patterning capabilities required for next-generation semiconductor manufacturing.

The increasing demands for higher semiconductor performance, driven largely by advancements in artificial intelligence (AI), have spurred the need for such high-performance equipment. As transistor miniaturization nears its physical limits, innovative packaging technologies, particularly advanced semiconductor packaging, have gained prominence. These packaging methods involve integrating multiple chips either side-by-side or in a stacked configuration, a process greatly aided by maskless lithography using semiconductor lasers.

The Role of Maskless Lithography

As industries migrate to more intricate designs and powerful computing systems, maskless lithography has emerged as a crucial technology. This method utilizes light to pattern semiconductors directly without the need for masks, enabling finer circuitry and faster production rates. The rising demand for lasers with shorter wavelengths—specifically closer to 365 nm, alongside higher output capabilities—has presented a challenge that NTCJ is eager to meet. The company's extensive 40-plus years of expertise in laser design positioned it perfectly to develop this latest high-efficiency ultraviolet semiconductor laser.

Overcoming Challenges in Ultraviolet Laser Technology

Traditionally, ultraviolet semiconductor lasers were hampered by significant heat generation due to low wall-plug efficiency (WPE), along with a propensity for degradation under ultraviolet light. NTCJ has tackled these challenges head-on, employing a dual strategy that enhances device structure for better WPE while simultaneously developing high-thermal conduction packaging technology to effectively dissipate generated heat. The result: a robust laser diode that successfully combines a short wavelength, high power output, and extended operational life.

Advancements in Optical Device Lifetimes

The implications of this new laser diode are profound. NTCJ’s innovations not only support the semiconductor manufacturing process but also extend the operational lifetimes of devices employing ultraviolet light. NTCJ is now offering a viable alternative to conventional mercury lamps, further advancing the industry's sustainability goals.

To showcase the capabilities of this groundbreaking product, NTCJ will feature it prominently at SPIE Photonics West 2026 in San Francisco, USA, as well as at OPIE'26 in Yokohama, Japan. The company eagerly anticipates engaging with attendees and sharing insights about this transformative technology.

Conclusion

Nuvoton's latest high-power ultraviolet laser diode represents a landmark development in semiconductor technology. As industries continue to evolve towards high-performance requirements, this innovative product stands as a testament to NTCJ's commitment to engineering excellence and forward-thinking solutions in semiconductor manufacturing.

For further information about the product and its technical specifications, please visit the official Nuvoton website.