Post by LasX Industries

In a lab-on-chip device, fluid moves through channels narrower than a human hair. At that scale, the quality of the cut is the product. This is where conventional laser processing runs into trouble. In materials such as PMMA, COC, glass, and silicon, heat spreads into the substrate, leaving a heat-affected zone, a recast layer, and microcracking along the channel walls. Those small distortions add up—uneven flow, inconsistent metering, results you can't fully trust. Cold ablation takes a different path. Ultrashort pulses remove material before heat can spread, so the surrounding substrate remains untouched. What you're left with are clean, true channel walls at single-micron resolution—whether you're working in polymers, glass, or silicon. Uncontrolled heat is the enemy of precision. The right laser expertise is the key to defeating it. Relentless innovation, at the micron scale. www.lasx.com — Image: "Microfluidic chip for point-of-care medical devices" by Kushlevich Sergey, via Wikimedia Commons, licensed under CC BY 4.0 (https://lnkd.in/e365Whs).