Thin film coating services provide the means to improve durability, lifespan, usability, performance, and a great many other factors for appliances and devices across virtually all industries. However, what are thin film coatings? What are the processes utilized to achieve those vital improvements?
Thin Film Deposition
All thin film coating services rely on a process called TFD, or thin film deposition. This is nothing more than the process of coating a substrate with another material. These coatings are generally very thin, ranging from 100 micrometers to just a few nanometers. Each layer builds up, eventually creating a coating of the desired thickness.
Techniques
There are several different techniques used in thin film coating services. One of the most common is called chemical deposition, or chemical vapor deposition. This process is used in the semiconductor industry today, but also many others. Another example is physical vapor deposition, of which thermal evaporation and sputtering are probably the two best-known methods.
The Goals of Thin Film Coatings
Thin film coatings are used to achieve a number of different goals, depending on the component or part, and the use case its intended for. As an example, consider surgical screws. These are often used to hold together bones shattered during an accident. However, if untreated, they may oxidize or degrade within the body prior to the time they can be safely removed. A thin film coating over the exterior of the screw can ensure better durability within the body, but also provide better biocompatibility and tissue integration, and even a reduced chance of infection within the body.
Another example can be found in the world of automotive technology. Wheel bearings are responsible for allowing a vehicle’s wheels to turn. However, friction and heat will eventually cause those bearings to fail, at which point the wheel will stop rolling smoothly, or even seize up completely. A thin film coating can provide better lubricity, but can also directly enhance durability, longevity, and even performance, resulting in not just a longer lasting wheel bearing, but one that allows for smoother operation of the wheel throughout its lifespan.
At N2 Biomedical, we work with customers in a brand range of industries, delivering crucial thin film coating services designed to match specific needs and requirements. We invite you to contact us today to learn more about our technology and coating processes.
