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What Are The Advantages Of Picosecond Laser Micromachining?

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Laserod Wafer

Picosecond lasers are best suited to machine materials that suffer from negative thermal effects during nanosecond laser machining with much higher performance. Nowadays, when it comes to material machining, the term "ultrafast lasers" is used more and more. It is used to distinguish picosecond and femtosecond lasers for applications.

In picosecond lasers, the laser pulse length is shorter than the time required for absorbed laser energy to propagate to the substrate and is usually between 5 and 10 picoseconds (ps). Picosecond laser micromachining is becoming increasingly popular due to the outstanding superficial finish. This is accomplished due to lower heating and reduced debris-related effect.

Not to mention the enhanced coupling due to the nonlinear intensity-dependent absorption and the obvious ease with which the machining effect can be achieved. The picosecond laser micromachining will produce a minimal size. This delivers features slightly smaller than one micrometer in size. But this only occurs with thin coatings of less than one-micron thickness.

The standard value is 10 microns laser-cut size for deeper beam penetration. Picosecond laser micromachining is utilized for high-quality components to achieve the best performance. Picosecond lasers are capable of allowing machining techniques that do not depend on ablation. The picosecond laser can achieve results with outstanding sidewall profiles. This can be obtained in the scribing of sapphire wafers for the singulation of LED products.

If properly optimized, picosecond processing can yield results that are not possible with other techniques. Effective implementation needs knowledge and analysis of material-photon interactions, time-dependent process-rate changes, and sample handling if possible, gains are not affected by conflicting device specifications.

Laserod is one of the industry’s commanding experts in laser micromachining and microscale applications of polymers and other substrates. Our high pulse femtosecond and picosecond laser micromachining are uniquely suited for microscale-polymer machining for many applications. For all sorts of slotting, grooving, or scribing thin materials, metals and polymers, contact Laserod Technologies today at 1-888-991-9916 / 1-310-340-1343 for projects and inquiries!

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