Soft Circuit Membrane Switch

Soft circuits can be developed using polyester or polyimide as the base material, depending on your interface requirements. From simple single layer copper flex on polyester to complex double-sided on polyimide, rapidly provides customers with application-specific solutions.

Trace Width

Standard line width-0.25mm, minimum 0.10mm

Standard trace pitch-0.50mm, minimum 0.20mm

Minimum space between-circuits 0.10mm

Base Material

Polyimide: standard thickness-1mil 2mil and 1/2 mil available

Polyester: standard thickness-3mil 1mil, 2mil and 5mil available

Conductor: laminated ED copper or RA copper-standard thickness 1 oz (1.4mil/0.035mm) 1/2 oz and 2 oz available

Coverlay: polyimide, polyester or solder mask thickness-1/2 mil, 1mil, 2mil, 3mil or 5mi

Soft Line Membrane Switch Core Types

Silver Paste Circuit Thin Film Switches

• Features: Utilises conductive silver paste for printed circuits, offering excellent conductivity, stable resistance, and moderate cost, suitable for most general applications;

• Applications: Household appliances, standard industrial instruments, consumer electronics, and other devices requiring moderate circuit precision.

Carbon Paste Circuit Membrane Switches

• Characteristics: Employing conductive carbon paste as circuit material, offering high wear resistance and ageing resistance, lower cost, suitable for high-frequency pressing applications;

• Applications: Remote controls, simple control panels, low-end household appliances, and other cost-sensitive products.

FPC/PCB Circuit Film Switches

• Characteristics: Utilises flexible FPC (polyimide film) or rigid PCB substrates. Features high circuit integration, bendable (FPC type), and accommodates complex circuits and specialised installation environments.

• Applications: Suitable for electronic communication devices (mobile phones, tablets), medical instruments, automotive electronics, and other scenarios with specific requirements for circuit complexity and installation space.

Metal Dome Circuit Switch

• Features: Circuit layer integrated with metal spring (dome switch), delivering distinct tactile feedback upon actuation, exceptional conductive stability, and a service life exceeding one million cycles;

• Applications: Suitable for industrial control systems, precision instruments, high-end home appliances, and other equipment demanding superior operational feedback.