During the COG process of installing a bare chip IC on a glass substrate (LCD), when the chip is bonded and subjected to high temperature hardening, the matrix coating composition is precipitated on the surface of the binder. There are also AG paste and other connecting agent spill component pollution binder. If these contaminants can be removed by plasma cleaning machine before hot-pressing binding process, the quality of hot-pressing binding can be greatly improved. Furthermore, as the wettability of both the substrate and the bare chip IC surface is improved, the LCD-COG module’s bonding and sealing ability will also be improved, and the line corrosion problem will also be reduced.

Plasma Cleaning Facility Clean LCD Screen

The ionizers are often referred to as the fourth state of matter. The first three states are solid, liquid, and gas, which are relatively common and exist all around us. Although abundant elsewhere in the universe, ionizer exist only in certain environments on Earth. The natural presence of ionizers includes lightning and the Northern lights. Just as it takes energy to covert a solid into a gas, so it takes energy to produce an ionizer. A certain number of ionizers consist of charged particles mixed with neutral particles (including atoms, ions and free particles). The ionizer can conduct electricity and react with the electromagnetic force.

As the temperature rises, a substance changes from a solid to a liquid, and the liquid to a gas. As the temperature of the gas rises, the gas molecules will separate into atoms. If the temperature continues to rise, the electrons around the nucleus will break away from the atoms to form ions (positive charges) and electrons (negative charges). This phenomenon is called “ionization”. Plasma is gas with charged ions as a result of ionization. Therefore, plasma is usually classified as the “fourth state” other than “solid”, “liquid”, “gas” and other states in nature.

In the experiment, ionization will occur if an electric field is applied to the gas, which is called discharge ionized plasma. In fact, of all the phenomena that occur in nature, up to 99 percent of the universe is filled with plasma. Plasma is defined as : when the number of ions in the space and the number of electrons close to the same so that the space appears neutral state, it is called plasma.