ASHER is a special device for removing adhesive on the back of electronic components. It uses plasma technology, through high-energy ions bombarding the back adhesive to make it fall off the substrate, so as to achieve the removal of the back adhesive layer.

ASHER (Active Spacecraft Shield for Environment Restoration) technology was first proposed by NASA and gradually applied to the electronics manufacturing industry. It is mainly used to remove toxic gases and solid waste generated in the process of backing rubber, improve production efficiency and environmental safety.

ASHER works by taking advantage of the high-energy ion bombardment effect of plasma. Plasma is the ionization state formed by separating the electrons and ions in the gas, which has the characteristics of high temperature, high speed and high energy. When the plasma comes into contact with the backside adhesive, high-energy ions penetrate the adhesive layer and collide with the molecules in the adhesive layer.

The collision of high energy ions with the molecules in the glue layer will cause the molecules in the glue layer to dissociate and peel, and the glue layer will be separated from the substrate. The gases and dissolved substances produced during this process are discharged through the exhaust system inside the equipment. During the degluing process, the operator needs to wear professional protective equipment to prevent injury from the plasma.

ASHER equipment is usually composed of plasma generator, vacuum chamber, axial injection system, vacuum conveying system and exhaust gas treatment system. In the operation process, the substrate to be removed is first placed in the vacuum chamber, and then the vacuum chamber is pumped to a good vacuum degree through the vacuum conveying system. Next, an axial injection system is used to spray plasma onto the back of the adhesive to remove the adhesive.

ASHER's advantages are as follows. First of all, it can quickly and efficiently remove the back adhesive, saving the time and labor costs of manual glue removal. Secondly, ASHER technology can treat the back adhesive of various materials and has a wide range of application. Thirdly, the exhaust gas and waste generated in the ASHER degumming process are treated by a special treatment system, which reduces the pollution to the environment.

However, ASHER technology also has some challenges and limitations. First, the equipment itself is more expensive and may be difficult for small and medium-sized enterprises to afford. Secondly, the operator needs to have certain professional knowledge and skills to ensure the normal operation and safe operation of the equipment. In addition, the backside adhesives of some special materials may need to be treated using other techniques.

In summary, ASHER is an efficient and environmentally friendly electronic manufacturing equipment. It removes adhesive on the back of electronic components by plasma technology, which improves manufacturing efficiency and environmental safety. With the development of science and technology, ASHER technology will be further improved and promoted, bringing more convenience and development opportunities to the electronic manufacturing industry.