Introduction to the functions of thick film printing
Introduction to the Functions of Thick Film Printing
Thick Film Printing Technology，Using screen printing or steel plate printing methods, conductor, resistor, and insulating ink materials are printed on the surface of the substrate. Depending on the applications in different industries, the substrates can be categorized into various materials such as ceramics, aluminum nitride, and enamel. Among them, ceramic substrates are the most commonly used materials for thick film printing, and due to the excellent thermal conductivity and heat resistance characteristics of ceramic substrates, they are often used in high heat and high energy products.
The materials used in thick film printing are a special type of paste that must possess the following three characteristics.
Printability- The dye must have a certain viscosity, and the viscosity decreases with the shear force applied by the squeegee, and it has thixotropic properties.
2. Functional Characteristics- Features required for resistors, conductors, dielectrics, etc.
3. Process Compatibility- The paste has good adhesion properties with the substrate, and when various pastes are used in combination, there will be no adverse reactions between them throughout the entire process.
Advantages:
Size ReductionAt least 0.7 times smaller or smaller than traditional PCB.
High SecrecyThe packaging operation enhances confidentiality.
Rapid R&D speed (3-6 weeks)Low R&D costs.
Heat resistant, good heat dissipationLow noise, suitable for high frequency, high reliability.
Can be designed for high power and high voltage resistance.
Products like those from FSR are used in automotive electronics, and we can often find our traces in them, as they are commonly used in automotive electronics for functions such as rearview mirror adjustment, seat adjustment, air conditioning adjustment, and so on.