Scope of application
Plasma cleaning machine Plasma treatment instrument is mainly used in the pre-processing of mobile phone shell printing, coating, dispensing, etc. in the electronics industry, surface treatment of mobile phone screens; surface cleaning of connectors; screen printing and transfer printing pre-processing in general industries.
Plasma cleaning is the only way to improve product yield. Flip chip machines are becoming more and more attractive in the market. Plasma technology has an incomparable advantage in penetrating the fine voids of the mold. The surface layer can be activated and activated regardless of the size of the object.
The plasma treatment system can provide rapid and well-proportioned cleaning or stripping effects. The cleaning process of the plasma processor is heated by a higher concentration of free radicals and a low-density plasma. Good uniformity, good control of the processing technology and operation of the actual operation on a single substrate are very critical.
1. Plasma cleaning and activation before packaging
The cleaning activity technology of the plasma processor has a significant improvement effect on the improvement of the bonding characteristics of the package mold in the semiconductor material micro integrated circuit chip. Highly active plasma uses the organic chemical kinetic energy of free radicals to process various substrate surfaces: solder mask materials, mold passivation treatment layers, pads and lead frame surfaces. This eliminates the problem of mold delamination, and according to the application of polyvinyl alcohol plasma, there is no electrostatic induction discharge or other potentially harmful adverse reactions.
2. Plasma etching package
De-encapsulation of packaged components such as integrated circuit chip IC and printed circuit board pcb makes the internal components exposed. Opening the decapsulation equipment can check the mold, connection and its characteristics in the process of common fault analysis. The selective etching of the polymer packaging material is the key basis for component failure analysis, and does not harm the consistency of the metal wire and the component layer. Plasma cleaning is used to clean and remove packaging materials. Plasma etching has high selectivity and will not be affected by the plasma etching process.
3. Plasma cleaning before welding
Plasma processor cleaning is an important process for improving the cleanliness of pads in integrated circuit chips. After plasma cleaning treatment, the shear strength and tensile strength of the ball are obviously enhanced. Ideally, during the tensile test, when the wire breaks in the span, it should be maintained electrically welded to the bonding pad. PVAtepla's distinctive plasma can effectively remove organic pollutants and metal oxides.
Plasma cleaning machine cleaning is also applicable to the processing of touch screens. For example, before connecting and bonding, the liquid crystal display or OLED terminal is removed from the organic contaminants at the connection, and then it is fused with the conductive film. In addition, in the integrated IC installation (COG) pretreatment, the plasma activation of the glass is another key application.
Application of Plasma Cleaner in FPC Circuit Board Industry
As the substrate of electronic components, printed circuit boards are conductive, which poses a challenge to the use of atmospheric pressure process to process printed circuit boards. Any surface pretreatment method, even if only a small potential is generated, may also cause short circuits, leading to wiring and electronic devices damage. For this type of electronic applications, the special performance of plasma cleaner processing technology provides new possibilities for industrial applications in this field.
Application of plasma cleaning machine in silicon wafer and chip industry
Silicon wafers, chips, and high-performance semiconductors are extremely sensitive electronic components. As a manufacturing process, plasma cleaner technology has also developed with the development of these technologies. The development of plasma technology in the atmospheric environment provides a new application prospect for plasma cleaning, especially in fully automatic production.