The conductivity of membrane switches is directly related to the stable operation of the entire circuit system and is one of the core parameters for measuring its quality and technical content. The conductivity is determined by multiple factors, including the type of conductive material, the rationality of the circuit layout, the stability of the production process, and the ability to adapt to the environment.

At present, the mainstream conductive materials include silver paste, carbon paste, and ITO film. Among them, silver paste has become a commonly used choice for high-quality thin film switches due to its superior conductivity and mature technology. The uniformity and adhesion of silver paste in the process of circuit printing have a significant impact on its conductivity, and every detail is controlled through screen printing equipment and constant temperature drying technology.

The layout of the circuit is also a key influencing factor. High density wiring requires ensuring reasonable spacing between lines to avoid the risk of short circuits, while also ensuring stable transmission of contact signals. Circuit design not only improves conductivity efficiency, but also effectively controls signal attenuation and enhances the compatibility of thin film switches with complex circuit systems.

In addition, the selection of substrate plays a supporting role in the stability of conductivity. Common materials such as PET have good insulation and flexibility, and can withstand multiple presses without deformation, ensuring long-term stable operation of the circuit. Combined with a high-strength adhesive layer, the entire structure performs well in terms of bending resistance and resistance to high and low temperatures.

The detailed management of temperature and humidity control, curing time setting, cleanliness management, and other aspects during the production process also affect the conductivity results. Minor impurities or process deviations may cause local resistance abnormalities, thereby affecting the overall performance of the switch.

The requirements for conductivity vary significantly among different industries. Medical instruments require high sensitivity and low resistance response, industrial equipment focuses on durability and strong anti-interference ability, and home appliances place more emphasis on balancing cost and reliability. Optimizing the layout of conductive materials and structures for different application scenarios has become an important path to enhance the competitiveness of thin film switches.