Building a photonic integrated circuit is a long journey. From wafer fabrication and dicing to assembly, packaging, and testing, a device passes through dozens of manufacturing steps before it reaches its final application. Every one of those steps introduces opportunities for contamination.
Femtum will be exhibiting at Photonics North 2026 in Quebec City from June 02 to June 05. Join us to discuss how our fiber laser solution enables more precise, selective, and fab-ready solutions for advanced photonics and semiconductor manufacturing. Visit us at Photonics North Booth #10.
Quebec City, Canada — March 12, 2026 — Femtum, a developer of advanced fiber laser solutions for the manufacturing of silicon photonics, co-packaged optics and next-generation semiconductor devices, announced today the closing of a $16 million Series A financing round. The funding will support the company’s international expansion, accelerate adoption of its laser technologies among…
Femtum will be exhibiting at OFC 2026 in Los Angeles from March 16 to March 19. Join us to discuss emerging manufacturing challenges in silicon photonics and advanced semiconductor packaging and how our fiber laser solution enables more precise, selective, and fab-ready solutions for advanced photonics and semiconductor manufacturing. Visit us at OFC in the…
Femtum will be exhibiting at Photonics West 2026 in San Francisco from January 19 to January 22. Join us to explore how our fiber laser solution is enabling more precise, selective, and fab-ready solutions for advanced photonics and semiconductor manufacturing. Visit us at Photonics West booth #5317.
Femtum’s laser trimming platform enables permanent, low-loss phase correction at the wafer level, improving PIC yield, reducing power consumption, and unlocking scalable photonic manufacturing.
Rising PIC complexity is creating a critical yield challenge in photonics manufacturing. Learn how Femtum’s laser trimming technology permanently corrects nanometric errors, boosts wafer-level yield, and removes the reliance on power-hungry thermal tuning, paving the way for scalable, high-performance photonic circuits.
CO₂ snow cleaning has earned its reputation as a dependable particle remover. It’s fast and dry. No solvents, no rinsing, no drying cycles. Perfect for dust, die saw debris, and some loose organics.
Mid-IR Laser cleaning is different. It is a more precise, targeted solution built for the demands of modern PICs s. Unlike traditional cleaning methods, Mid-IR laser cleaning is based on selectivity at the molecular level. Instead of treating every surface the same, it discriminates based on the optical absorption of the contaminant.
Photonic Trimming is the operation of changing the phase of optical paths in photonic integrated circuits (PICs). This process recenters the PIC performance to the target or designed value.
FEMTUM has developed a non-contact laser process to perform post-fabrication phase correction of defective PICs, turning known bad dies into known good dies. The process is very fast, with a duration in the milliseconds range, and very well controlled. The laser and optical head are designed to be simply integrated into current semiconductor tools.
Plasma systems are widely adopted in the industry because they are applicable to a broad range of materials, they can process large batches, they are inherently dry, necessitate vacuum and they can operate in cleanrooms. Mid-IR laser cleaning works differently than plasma cleaning, especially at 2.8µm. Short-pulsed lasers are ideal for high-precision applications: they spatio-temporally limit heat diffusion in the substrate resulting in a very small or quasi-absent heat-affected zone.
