As one of the representative technologies of "additive manufacturing", printed electronics has emerged in recent years, becoming another brand-new concept that may completely change the future development of the electronics industry after 3D printing. At the same time, unlike many of the old stories of "sucking people's nose", in the era of printed electronics, China is walking with the world. The editor takes you into the advantages and future of printed electronics.

Four advantages of printed electronics:

The biggest feature of printed electronics is to apply the printing process to the manufacturing industry, combining printing with electronic technology. Simply put, this is a technique of 'printing' electronic products or electronic components by printing newspapers and leaflets. In general, this technology has 4 outstanding advantages:

1. "Low cost" is the biggest advantage of printed electronics, because printing can achieve roll-to-roll, mass production, the process technology is relatively stable, and the process repeatability is good. In addition, the cost of organic films and various ink materials for printed electronics is lower than that of copper clad laminates for PCBs and various chemical materials; printed electronics processing is also less than PCB and PCBA, and printed electronics can be processed in rolls (R2R ); Because the processing process is simple, the investment in production equipment for printed electronics is not as complicated as PCB and PCBA; therefore, printed electronics is suitable for low-cost requirements.

2. The electronic circuit and components are assembled together, and the connection is reliable

The usual PCB is only PWB (printed circuit board), and the components that become circuit functions are assembled afterwards, that is, completed by PCBA. Printed electronics has both circuits and components on the substrate, all of which are completed by printing and become real electronic circuits. Moreover, the components and circuits of printed electronic products are completely integrated, and the connection reliability is high.

3. The product is thin and flexible, reducing volume and weight, suitable for various shapes

The base material of printed electronic products is mainly organic thin film, which has the characteristics of flexibility and thinness. The components formed by printing are thick film type, which is lighter and thinner than the components mounted on the PCB. Therefore, printed electronics has the advantages of a flexible printed board (FPC), which is better than FPC.

4. Green production is beneficial to environmental protection

Printed electronics production waste is minimal, no chemical etching and electroplating processes are required, and there is no waste water. It is a clean production technology.

Forecast of the development status of printed electronics:

Printed electronics technology is still in the early stages of industrial development, but its market size has shown great potential for development. According to survey data, printed electronics technology and industry involve a wide range, including organic, inorganic or synthetic materials that can be printed to form circuits or electronic components, generating transistors, displays, sensors, photocells, batteries, lighting devices, conductors Semiconductor and other devices, as well as the processes and products of interconnected circuits. However, some experts judge that if the current industry scale and policy dilemma cannot be effectively improved, the domestic printed electronics industry is likely to be overshadowed in the future.

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