The use of plasma is an effective way to clean without using hazardous solvents. Plasma is an ionized gas capable of conducting electricity and absorbing energy from an electrical supply. When a gas absorbs electrical energy, its temperature increases causing the ions to vibrate faster and “scrub” a surface.
Typically, plasma is created in a low-pressure environment. Plasma cleaning systems are an effective way to remove small amounts of contaminants from a substrate surface. (For removing thick photoresist layers, see our Plasma Photoresist Strip/Descum Systems).
Wire bond surface preparation
Removing contaminants (flux) or sterilizing a surface
Promoting adhesion between two surfaces
Controlling surface tension to achieve either a hydrophobic or hydrophilic surface
Improving polymer performance through cross-linking to decrease friction that wears out devices