The RUSNANO’s FIEP Startup Has Created a Picosecond Laser for Cutting Sapphire and Silicon

27 April 2021

Polarus (part of the TechnoSpark Group of Companies of the RUSNANO’s Fund for Infrastructure and Educational Programs (FIEP) investment network of the VEB.RF Group) has launched a new PL Beta fiber laser model for the microelectronics industry. The company estimates that domestic equipment will cost significantly less than its foreign counterparts. Serial production is scheduled to start in 2022.

PL Beta fiber laser for the microelectronics industry.

PL Beta fiber laser for the microelectronics industry.

The PL Beta laser is designed for cutting and machining sapphire, silicon, and other delicate materials that are used in microelectronics as shielding glass and substrates for microchips and LEDs. The PL Beta laser is also capable of passing through wafer-cutting, scribing (precision notching), micro-welding, material removal from the surface, marking, and other operations. The compact laser can be directly integrated into complete industrial systems.

“Our laser will make it possible to handle such complex operations as precision cutting of sapphire without resorting to expensive and cumbersome solid-state lasers. PL Beta operates with very short pulses of 38 picoseconds, and therefore the radiation causes the material to vanish rather than melt as with a nanosecond laser. The result is a very neat cut with straight edges. Such a precise treatment can be done with a femtosecond laser, which costs a lot more,” said Polarus Director Ekaterina Khodunova.

Compared to solid-state lasers, fiber lasers are more robust and compact, with low sensitivity to shock and vibration. Their high spectral characteristics, comparable to those of solid-state lasers, allow very fine cuts to be made.

Reference

The Fund for Infrastructure and Educational Programs was established in 2010 in accordance with Federal Law No. 211-FZ “On reorganization of the Russian Corporation of Nanotechnologies.” The Fund aims to develop the innovative infrastructure in the sphere of nanotechnology and implement the educational and infrastructure programs already started by RUSNANO.

The supreme collegial management body of the Fund is the Supervisory Board. Under the Fund’s Charter, the competence of the Supervisory Council, in particular, includes the issues of determining the priority directions of the Fund’s activity, as well as its strategy and budget. The Chairman of the Fund’s Executive Board, the collegial management body, is the Chairman of the Board of Management Company RUSNANO LLC Sergey Kulikov.