Article provided by: Laserod

Micromachining Femtosecond Laser

What is Micromachining femtosecond laser?

Micromachining is a vital part of industries like the aerospace, micro-electronics, medical, transducer sensor, solar cell, touchscreen fabricators and many more. We at Laserod specializes in cutting and drilling thin materials, resizing or coloring of silicon wafers, small hole drilling, trimming circuit resistor, cutting substrates of ceramic, and circuit patterns for ITO and PET. We also offer micromachining femtosecond laser applications for precise cutting results.

The Use of Micromachining Femtosecond Laser

Microtexturization of the surface of an implant that was experimented to enhance bone formation in the dental implants is among the femtosecond laser applications. This technique is proven to be precise and the contaminants on the surface are reduced with low thermal damage.

The microtexturing that occur with femtosecond laser increases oxygen layer, micro, and nanofeatures. It creates a higher bone density, improved mechanical stability, and higher bone formation based on animal studies.

What is Femtosecond Laser?

Femtosecond is a laser system that is a very effective tool in working with high-precision micro-machining. It can process almost all solid materials with high precision. It can greatly reduce shock sensitivity and shows no influence on the material after using the femtosecond laser. It also reduces the reliance on material properties such as transparency, thermal conductivity, and heat sensitivity.

The use of femtosecond pulses is only for the diffraction of used optics, unlike the conventional laser where precision is achievable through a liquid phase that causes burr formation. This technique is also applied to a biodegradable structure or polymers for implants to the cardiovascular system.

Femtosecond Laser - Stent Cutting

Manufacturing or creating stents requires cutting down into small feature sizes by machining into few micrometers with high precision quality. The process should not show burring, melting, and recasting of materials.

The materials can also result in a bordering of HAZ when it is cut and results in a heat deposition. The material composition and properties of the HAZ are then being altered.  Through a consequent deburring, cleaning, etching and the polishing method brings out the properties of the stent to a consistent level required for implanting. The additional steps for post-processing the stents can be avoided by using femtosecond lasers.

The new generation of implants nowadays is mostly biodegrable stents that are made of polymer materials with bioabsorbable feature. The materials are most sensitive when heat is induced to it. It has a melting temperature of below 200 degrees celcius, and because of this, the application of femtosecond laser can lead to the HAZ formation along its cutting edge.

The advantages of femtosecond laser micromachining include non-contact machining with high peak powers. It has minimal or lesser thermal damage to its materials or surroundings. It also offers a high aspect ratio clean cuts, features sub-micron resolution, and minimal redeposition.

We, at the Laserod, have a line of laser machines that are guaranteed to produce high-precision result. We can produce test samples based on your preference. We can also demonstrate the laser's performance using your materials. This is to guarantee that the laser system you are purchasing is intended for where it should be used.

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