Technology application


Application of Screen Printing in Ceramic Circuit Board

Ceramic circuit boards can be classified into multi-layer ceramic circuit boards and single-layer ceramic circuit boards according to their structure. Thick film screen printing can be basically applied to the printing production process of various types of ceramic circuit boards. Such as TPC, ceramic copper clad plate, LTCC, HTCC, MLCC, etc.



Screen-printing applications in the production of semi-conductors
Although vacuum processes are quite often during the production and processing of semiconductors, screen-printing machines are also used.This is because of the low necessary capital expenditure and the high productivity while maintaining very low production costs even under mass-production conditions.Furthermore, a significant reduction of production steps and a decrease of waste and environmental hazards can be achieved by adopting screen-printing technology.
To install electric elements or components on the wafer surface, screen-printed solder connections are used.In order to make common household electronics like personal computers, mobile phones, digital cameras and televisions smaller, thinner and more compact, the space required for these connectors has to be reduced while maintaining high precision and accuracy in placing these connectors.With Micro-tec screen-printing machines, this task can be accomplished.



Application of Screen Printing in Fuel Cells
The fuel cell unit structure mainly includes bipolar plate, membrane electrode (Proton-exchange membrane+catalyst+diffusion layer), end plate, etc. It is necessary to ensure high sealing during assembly and use.
In these structures of fuel cells, screen printing technology can be mainly used: coating sealant on bipolar plate, coating catalyst on Proton-exchange membrane, sealing of membrane electrode frame, etc.



The Application of Screen Printing in Touch Screen
The thick film printing screen machines can be used for applying dot spacers, forming conductive patterns or insulation resistance.Especially applications with the need for Multi-input capacity of the resistive layer and the demand for detecting the touch intensity can be effectively realized with Micro-tecs high precision and fine screen printers.
Complex requirements like multi-input capability or sensing the writing pressure on the resistance film demand a very fine pattern and a high-precision screen-printing technology. Micro-tec machines are capable of such high-tech requirements.
On the outside of the screen of smartphones and tablets, there are electrode wires arranged to achieve touch control function. Usually, to cover the wiring line, ink is applied as decoration on the edges. Decorative printing refers to the printing of edge decoration using specialized paste and screen printing. Most of them are black decorations (commonly known as BM), but recently white decorations (commonly known as WM) have also appeared.
Edge coloring is not simple. Firstly, the light source must not be exposed from the edges. In order to achieve touch control function, it is necessary to maintain uniform film thickness of the slurry and meet the unified requirements of mass production.This requires high-precision screen printing machines to achieve.



Application of Screen Printing in Thick Film Heat Exchangers
Thick film heating elements are mainly divided into two types: ceramic heating elements and metal heating elements. It refers to the effect of printing thick film circuits on ceramic or metal substrates to achieve rapid heating.
Metal heating elements are mainly made of stainless steel heating elements, while others include titanium alloy heating tubes, nickel based alloy heating tubes, etc. Stainless steel heating elements have advantages such as simple structure, good corrosion resistance, good heat dissipation performance, and stable technical performance. However, they also have disadvantages such as poor high-temperature resistance, thermal conductivity, and safety.
Ceramic heating element is a high-tech heating element made by co firing a series of special processes, using high thermal conductivity alumina as the substrate and heat-resistant and insoluble metal as the inner electrode to form a heating circuit.
It is divided into MCH ceramic heating element and PTC ceramic heating element according to different purposes.
MCH ceramic heating elements are mostly curved, circular or filamentous, mainly used in electronic atomizers, intelligent toilets, instant dual mode water heaters, electric water heaters, hair straighteners, curlers, automotive exhaust oxidation sensors, industrial equipment heating devices, ultrasonic heating elements, mold heating insulation devices, medical device heaters, and small heating appliances.
PTC ceramic heaters are mostly in sheet shape, and are mainly used in air conditioners, hot air curtains, dehumidifiers, dryers, Clothes dryer, Fan heater, Yuba, automobiles and other equipment that need warm air.
The most widely used alloy wire heating elements and PTC heating elements and their components in ceramic heating elements are gradually being replaced by HTCC ceramic heating elements.



The Application of Screen Printing on Sensors
The application of screen printing on sensors mainly involves printing electrode layers and insulation layers. Due to its flexible design, simple structure, good consistency, low cost, and ease of large-scale production, it can be printed into single electrode systems, double electrode systems, three electrode systems, and even more complex multi electrode systems as needed. In recent years, the application range of screen printed electrodes has gradually expanded, and they have wide applications in electrochemical biosensors, including enzyme sensors, immune sensors, gene sensors, and other fields.

Thick film printing technology is widely used in the production of electronic components. If you have production demand, please contact us as soon as possible.


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