Category Archives: Coating Systems

Spin coating is a fantastic way to protect sensitive application surfaces or add a layer of specialized material at the microscopic level. However, some problems may present themselves if this process is done incorrectly. In today’s blog, Coating Systems examines common defects found in spin coating. Comets Comets, unfortunately, happen regularly with spin coating. Comets occur when a relatively large particle, bigger than the ones in the coating, interrupts the normal flow of the coating on the spinning wafer. These particles can come from dirt or dust on the workpiece or from within the coating itself. Companies can solve the problem of comets by working in cleaner…

Spin coating involves applying a thin coat of liquid over an object while the object is turning. The liquid then cools, and some parts of the coating may evaporate, to achieve various effects. The main idea is that the spinning action spreads out the coating to a perfectly even thickness over the desired material. Spinning also dries the liquid in a controlled environment. Centripetal force allows this process to happen. Coating Systems explains industries that utilize spin coating as a way to protect or enhance their vital products. Semiconductors Semiconductors, most notably computer chips and microchips, benefit from spin coating techniques. Film over semiconductor wafers not only…