In order to improve the reliability and functionality of electronic products, every link in the electronics manufacturing process is crucial. In these links, the application of corona roller is particularly critical.

This article will explore in depth why the electronics industry needs to use corona rollers and analyze in detail their application in specific links.

What is the basic principle of the corona roller?

A corona roller is a device that generates corona discharge through high voltage electrodes to increase the surface energy of materials. When the material passes through the corona roller, the high voltage electric field forms corona discharge on the surface of the material, causing an oxidation reaction on the surface of the material, increasing the polarity and energy of the surface. This process can effectively improve the surface properties of the material, making it easier to combine with other materials or coatings.

Why does the electronics industry need to use Corona Roller?

In the manufacturing process of electronic products, many components and materials need to be surface treated to improve their adhesion performance and processing effect. As a highly efficient surface treatment equipment, the corona roller can significantly increase the surface energy of the material and enhance its bonding with other materials, thereby improving the quality and reliability of the product.

Which link in the electronics industry needs to use corona rollers?

The electronics industry requires the use of corona rollers in the following areas: flexible circuit board (FPC) manufacturing, display screen manufacturing, electronic label manufacturing, semiconductor packaging, and electronic component manufacturing.

1. Flexible circuit board (FPC) manufacturing process:

Flexible Printed Circuit Board (FPC) is a highly flexible circuit board that is widely used in electronic products such as smartphones, tablet computers, and wearable devices. In the manufacturing process of FPC, the surface adhesion performance of the substrate (such as polyimide film) is crucial for the combination of conductive film, protective layer, etc.

● Improve the surface energy of the substrate: Through corona treatment, the surface energy of the substrate is significantly improved, so that the conductive film, pad and protective layer can be firmly bonded to avoid delamination and separation.

● Improve printing effect: The surface of the substrate after corona treatment is smoother and flatter, which helps to improve the accuracy and quality of printed circuits and ensure the reliability and stability of the circuit.

2. Display screen manufacturing process:

Displays, such as liquid crystal displays (LCD) and organic light-emitting diode displays (OLED), play an important role in modern electronic products. The manufacturing process of display screens is complex, involving multiple levels of materials and processes.

● Substrate processing: In the display manufacturing process, the surface adhesion performance of the substrate (such as glass or plastic substrate) is crucial. Corona treatment can increase the energy of the substrate surface and enhance the adhesion effect of the optical film layer and the conductive film layer.

● Improve display effect: Corona treatment can reduce impurities and pollution on the surface of the substrate, improve the uniformity and transparency of the film layer, thereby improving the display effect and image quality.

3. Electronic tag manufacturing process:

Electronic tags (such as RFID tags) are widely used in logistics, retail, anti-counterfeiting and other fields. The manufacturing process of electronic tags requires that electronic components such as antennas and chips be firmly adhered to the substrate.

● Enhanced adhesion: Corona treatment can significantly increase the surface energy of the substrate, enhance the adhesion between the antenna, chip and substrate, and ensure the stability and reliability of the electronic tag during use.

● Improve production efficiency: Corona treatment can reduce the scrap rate in the electronic tag manufacturing process and improve production efficiency and product quality.

4. Semiconductor packaging:

Semiconductor packaging is an important link in the electronic manufacturing process and directly affects the performance and reliability of the chip. During the packaging process, the adhesion between the chip and the packaging substrate is crucial to the packaging effect.

● Improve packaging effect: Corona treatment can increase the surface energy of the packaging substrate, enhance the adhesion between the chip and the substrate, and reduce the voids and delamination phenomena that occur during the packaging process.

● Improve thermal performance: Through corona treatment, the thermal conductivity of the packaging material is improved, which helps to improve the heat dissipation of the chip and enhance the performance and reliability of electronic products.

5. Electronic component manufacturing:

In the manufacturing process of electronic components (such as resistors, capacitors, diodes, etc.), the adhesion performance of the component surface directly affects the performance and life of the component.

● Improve adhesion performance: Corona treatment can enhance the adhesion performance of the surface of electronic components, ensure the firm bonding of the conductive film, protective layer and packaging materials, and improve the electrical performance and mechanical strength of the components.

● Improve durability: Corona treatment can reduce oxidation and contamination on the surface of components, improve the durability and reliability of components, and extend their service life.

What are the advantages of corona rollers in the electronics industry?

Advantages of corona rollers in the electronics industry: efficient processing, wide applicability, improved product quality, and low environmental impact.

1. Efficient processing: Corona rollers can process the material surface quickly and efficiently, improve production efficiency, and reduce production cycles and costs.

2. Wide applicability: Corona rollers are suitable for a variety of materials, including plastics, metals, glass and paper, and can meet the surface treatment needs of various materials in the electronics industry.

3. Improve product quality: Through corona treatment, the adhesion performance of the material surface is significantly improved, which can effectively reduce the scrap rate in the production process and improve product quality and stability.

4. Low environmental impact: Corona treatment is a clean surface treatment technology that does not produce harmful waste and pollutants, and meets the environmental protection requirements of modern industry.

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