Membrane switchAnd what is the relationship between silk screen printing?Membrane switch is a silk screen printing as a major means of process, and few can serve one of the independent product screen printing in the field of high technology.
Membrane switch has the function of the adornment, besides the traditional panel tag indicating function;With the switch of switching element and control function, membrane switch also has connected to the switch element and host circuit switch wire, lead wire (i.e. switch circuit) function, with reading showed transparent, light transparent window function, so the membrane switch is not a single new panel is not single switch element, and the function and decoration for the integration of electronic product, is a novel electronic devices.
Due to theMembrane switchHas the advantages of simple structure, good appearance, good environmental resistance, long service life and light, thin, short and small features, and therefore conforms to the modern electronic instruments and high integration, high intelligent direction of development, so the favour of high-tech products
In the quality inspection of membrane switch in addition to concern about ink color rendering and the customer request color reproducibility, more important still must pay attention to the inner quality of membrane switch, such as buttons, peel strength and service life, high temperature, low temperature, constant humid and loop resistance, insulation resistance, such as pressure measurements.
Silk screen printing on high-tech
Screen printing into the membrane switch manufacturing technology of the high-tech in addition to the above content, at the same time there are a lot of new content is different from the traditional screen printing, for exampleMembrane switchCircuit of the computer aided design (CAD) and the manual wiring design;Isolation layer window and guide the design of the gas tank;Insulation and its application in the ultraviolet (UV) curing ink;The application of non-metallic conductive carbon slurry;With high-tech computer numerical control (CNC) electronics autofocus precision punch for membrane switch working environment and storage conditions.Obviously we should according to the working environment of membrane switch and storage environment.Obviously we should according to the working conditions of membrane switch and storage environment to consider the structure of the membrane switch design and material selection.However, in the selection screenFor conductive material, especially the silver flake silver particle pass in the pulp, you need to choose a low enough net mesh, and require joint size is fine, sluice or hole width is larger.Circuit graphic finish refers to the sharp edge, it is not only for reasons of appearance, more important is considering the influence of electric parameters.Not only selling the conductor is likely to be reduced the adjacent edges of the wire impedance, especially under high temperature, high humidity, easy to cause the silver ions generated along a line edge serrated, silver ion migration, causing line between short circuit fault, etc.
Today's screen printing has developed into a set of optical, mechanical and electrical, chemical, photochemical, microelectronics, computer and other high and new technology for the integration of multidisciplinary cross the brand-new modern screen printing technology.
Membrane switch technology in the layer panel production in both the traditional screen printing ink color reproducibility, namely the traditional screen printing color decoration features, in making the circuit layer must also focus on electrical conductivity of the circuit, to prevent the oxidation of silver slurry circuit and silver ion migration, multilayer interchange problem such as the reliability of circuits and membrane switch products, its high-tech content is obvious.