Brief Introduction, Principles and Features of Printed Electronics Technology

Printed electronics was once called printed electronics or all-printed electronics. The third National Conference on Printed Electronics Technology unanimously recognized the term printed electronics after discussion.

Print Full Electronic Technology (Print Full Electronic Technology) refers to the use of fast, efficient and flexible Digital Printing Inkjet Technology (Digital Printing Inkjet Technology) to form conductive lines and patterns on the substrate (no copper foil), or form the entire printed circuit board the process of.

Printed electronics technology is an electronic manufacturing technology based on printing principles. In the past 50 years, silicon-based semiconductor microelectronics technology has occupied the absolute dominant position of electronic technology. However, due to the increasing complexity of silicon-based integrated circuit manufacturing technology and the huge investment required, the manufacturing of silicon-based integrated circuits is completely monopolized in the hands of a few large companies worldwide. Therefore, the research and development of solution organic and inorganic semiconductor materials in the past 10 years have led to the exploration and research of manufacturing various electronic devices using traditional printing technology. The biggest feature of solution organic and inorganic semiconductor materials is that they do not depend on the conductor or semiconductor properties of the base material and can be deposited on any material in the form of a thin film. The means of deposition can be evaporation, spin coating or printing.

As a result, some new electronic fields different from silicon-based microelectronics have emerged, such as organic electronics (Organic electronics), because organic semiconductor materials are the first solution semiconductor materials developed. Of course, organic semiconductor materials also include non- Soluble small molecule materials, etc .; plastic electronics or paper electronics (Plastic electronics, Paper electronics), because the solution semiconductor material can be made on plastic film or paper; flexible electronics (Flexible electronics), because the base material is soft Sex does not affect the work of such electronic devices; transparent electronics (Transparent electronics), because many organic or inorganic electronic materials are transparent or translucent, made on glass or transparent plastic substrate materials can make the entire electronic device or display Transparency; printed electronics (Printed electronics), because large-area or array electronic devices can be produced in large quantities like traditional newspaper printing. Printed electronics can cover these other special fields of electronics. For example, printed electronics can print inorganic electronic materials or organic electronic materials (including organic electronics); it can be printed on silicon, glass, stainless steel substrates, or plastic or paper substrates (including Plastic electronics, paper electronics or transparent electronics); it can be printed on a rigid substrate or a flexible substrate (including flexible electronics).

The biggest features and advantages of printed electronic products are large area, flexibility and low cost, which is in sharp contrast with silicon-based microelectronic products. The equipment investment required for printing electronic devices is extremely low, and printed electronic devices can be made on any substrate material. Although the performance of printed electronic devices is not as good as silicon-based microelectronic devices, the cost advantages and the large area and flexible characteristics make printed electronic technology still have a large number of application fields that silicon-based microelectronic devices cannot. For a detailed introduction to printed electronics, see "Printed Electronics: Materials, Technology, and Applications" (Higher Education Press, published in March 2012).

Printed Electronics (PE) and Printed Circuit Board (PCB)

Most of the current printed boards are only used for supporting and connecting electronic components in electronic equipment. The name sign is actually a printed circuit board. The development of printed boards includes electronic components, such as embedded resistors and capacitors in multilayer boards, and embedded IC devices. This is a veritable printed circuit board. The substrate contains electronic components and connecting lines, which are electronic circuits. In order to adapt to the miniaturization of electronic equipment and portable belts, the development direction of printed boards is high-density interconnected embedded component printed boards, integrated printed boards and photoelectric printed boards.

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