Membrane Switches

Membrane switches primarily consist of three parts: the operating panel, the upper circuit layer, the isolation layer, and the lower circuit layer. The upper and lower circuit layers are printed with conductive silver paste and carbon ink on a non-conductive polyester film (PET), forming a multi-layer flat circuit panel composed of conductive and insulating materials with a certain degree of flexibility. It's worth mentioning that all our structures have undergone RoHS inspection and certification, ensuring the safety and environmental friendliness of our products.
We offer two common substrates for our membrane switches: PC (polycarbonate) and PET (polyethylene terephthalate), each with different characteristics for various applications in membrane switches. PC substrates can undergo various surface treatments, including glossy, matte, semi-matte, glossy-matte, and scratch-resistant glossy, making them suitable for diverse environments and requirements. PET substrates, on the other hand, are commonly used in membrane switches and can also be applied as coating or embossing materials, offering options for scratch-resistant glossy and scratch-resistant matte finishes.

Convex membrane switches from LEESUN offer tactile feedback, durable construction, and customizable designs. They are suitable for control panels, appliances, and industrial devices.

LEESUN provides a wide range of custom touch panel switch solutions, combining advanced touch sensing technology with high-quality surface materials. Our switches deliver modern, intuitive control interfaces.

Membrane circuits are components consisting of a polyester film (PET) substrate with conductive ink such as carbon powder or silver paste printed on its surface. These circuits are primarily used in electronic devices, especially for connecting printed circuit boards (PCBs) to surface buttons.

Here are the main characteristics and applications of these membrane circuits:

Flexibility and Lightweight: The PET film substrate provides excellent flexibility and lightweight properties, allowing these membrane circuits to be applied to curved or bent surfaces of electronic devices while also contributing to overall weight reduction.

Conductive Ink: Conductive ink is printed on the surface of PET film to form conductive patterns used for connecting functions in electronic devices. These conductive inks exhibit good conductivity and adhesion, enabling reliable connections.

Reliability and Durability: Due to the use of PET film as the substrate, these membrane circuits possess excellent wear resistance and durability, maintaining stable performance over prolonged periods of use.

Wide Range of Applications: These membrane circuits are commonly found in various consumer electronics such as mobile phones, tablets, remote controls, etc., used for connecting PCBs and surface buttons to achieve button operation functions.

In summary, membrane circuits utilizing PET as the substrate and printed with conductive ink on the surface are common connecting circuit components. They feature flexibility, lightweightness, durability, and are widely applied in various consumer electronics.