Dome Sheets & FPC

1. Introduction to Dome Sheets & FPC

Dome Sheets & FPCs are precision switch solutions that optimally combine metal domes with flexible printed circuits (FPCs) or dome sheets. They combine the stable tactile feedback of metal domes with the lightweight, flexible structure of FPCs, meeting the needs of industries such as industrial control, medical equipment, and consumer electronics, which demand high button feel and layout flexibility.

SHANYO has been a precision electronic component manufacturer since its foundation and hence bears great expertise in the area of flexible circuits and metal contacts. Single-sided flexible circuits, single-sided flex with dual access, multi-layer flexible circuits, rigid-flex circuits are all offered by SHANYO. High precision stamping and circuit printing for all Dome Sheets & FPCs guarantees stable conductivity as well as keeping the same feel at all times. OEM/ODM customization is supported.

2. Features of Dome Sheets & FPC

Highly Flexible Design

Flexible circuit substrates can be bent and folded, facilitating layout in limited spaces.

High-Quality Tactile Feedback

Metal springs provide a clear “click” feel, enhancing operational confirmation.

Various Structure Options

Single-sided, double-sided, multi-layer FPCs, and rigid-flex hybrid structures are available to meet the needs of various devices.

High-Precision Manufacturing

Advanced etching and drilling processes ensure high circuit accuracy and reliable conductivity.

Lightweight and Durable

Thin and lightweight, while offering excellent flex resistance, ensuring long-term performance.

Highly Integrated

Dome Sheets and FPCs can be integrated with LEDs, touch panels, and display modules.

Various Surface Treatments

Gold plating and nickel plating are supported to enhance corrosion resistance and conductivity.

3. Customer Benefits of Dome Sheets & FPCs

Reduces Assembly Complexity

Since it does not involve mechanical buttons, and connectors production and assembling labor costs will be lowered.

Gives Freedom of Product Design

FPCs support the ability to route in a flexible manner, hence supporting more creative as well as miniaturized product designs.

Increases Terminal Reliability

This integrated structure reduces solder joints and connectors which could fail in the future, hence attaining long-term reliable operation of the device.

Quick adjustment

SHANYO gives quick help from circuit plan and form improvement to model and large scale manufacturing, meeting different custom necessities.

Ready to Different Conditions

High-temperature, moistness safe, and synthetic safe, appropriate for outside, clinical, or cruel modern conditions.

4. Application Scenarios of Dome Sheets & FPCs

Dome Sheets & FPCs have a wide range of applications, particularly in B2B industries requiring reliable button feedback and flexible layout design:

Industrial Control Panels & Terminals

Applied in automation controllers, industrial instruments, and other equipment to realize multi-button or matrix input.

Medical devices and portable diagnostic equipment

Applications of portable monitors, and electrocardiographs among others require products that can be sterilized, are resistant to contamination, and operate correctly.

Consumer electronics

Mostly used in remote controls, game controllers, and wearable devices because they have a thin structure combined with a good feeling.

Communications equipment

Supply parts for dual-use radios and hand units that need often use and long life.

Security and military gear

Give steady input in tough settings and fit for outside use with big changes in heat and wetness.

Home appliance control boards

Keypad areas on items like microwaves and washers need dust and water safety.

5. FAQ

Q1: What customization options are available for dome sheets and FPCs?

A1: Customization is available for FPC size, circuit layout, metal dome specifications (diameter, trigger force), contact surface treatment (such as gold plating), key layout, and connection interface type.

Q2: What is the service life of dome sheets and FPCs?

A2: Under normal conditions, the metal dome can achieve a lifespan of 1 million to 5 million clicks or more, and the FPC itself can withstand >10,000 repeated bends. The specific lifespan will vary depending on the trigger force and application environment.

Q3: Can other electronic components be integrated onto the FPC?

A3: Yes. SHANYO provides an all-in-one solution that can integrate LEDs, sensors, and touch circuits onto the FPC, reducing assembly steps and increasing functional integration.

Q4: What is the typical production cycle?

A4: Standard products are typically delivered in 2-4 weeks. Customized products depend on circuit complexity and mold development time. SHANYO can provide expedited production services for specific projects.

Q5: How do we ensure stability and consistency of dome sheets and FPCs?

A5: During the production process, we utilize fully automated placement, stamping, and electrical testing systems, along with stringent quality inspection standards (including appearance, continuity, and resistance testing) to ensure consistent performance across each batch.