The dome array is a key component in the membrane switch, which consists of multiple metal domes arranged in a specific layout. When customizing, it is necessary to communicate with the manufacturer to select the appropriate material, such as stainless steel or copper alloy, and determine the shape and size according to the requirements. It is manufactured through precise stamping and forming processes. After forming, it is mounted on the substrate and connected to the circuit to ensure that each dome can work properly.
Your trusted dome array manufacturer – Best Technology
How to customize dome array?
Customization begins with understanding the need. Every project is different, and so is every dome array.
The process starts with the choice of metal dome type—round, triangle, four-leg, or oblong. Then comes the actuation force. Whether it’s a gentle 180g or a solid 500g, the choice affects feel and performance. Next, the layout—custom patterns, specific spacing, and number of domes per array are defined based on the PCB design or user interface.
Surface materials also play a role. PET, PI, or stainless steel sheets are commonly used. PET is flexible and cost-effective, while PI handles higher temperatures. For applications needing long life cycles, silver-printed traces or hard gold plating offer enhanced conductivity and wear resistance.
All of these elements are crafted with high precision to ensure consistency and responsiveness.
What are the benefits of custom dome arrays?
When you opt for a custom dome array, you get more than just tailored fit—you get performance that fits perfectly.
First, there’s optimized tactile feedback. Custom force levels and dome shapes ensure the user feels exactly what you intended—crisp, soft, or snappy.
Second, you’ll see better durability. A high-quality dome array can exceed a million cycles if designed properly.
Another huge plus is improved assembly efficiency. Instead of placing individual domes, pre-loaded arrays save assembly time, reduce handling errors, and improve throughput.
And let’s not forget aesthetic precision. Custom arrays allow tight tolerance alignment with overlays or housings, ensuring a clean, professional interface.
With the right dome array manufacturer, you gain more than a part—you gain reliability, longevity, and brand trust.
How is the dome array made?
It starts with high-quality stainless steel domes. These are punched and formed using precise dies to achieve the correct height, diameter, and actuation force. The surface may be plated or passivated, depending on environmental demands.
Next, the domes are arranged on a carrier layer—usually PET film. The placement is automated, using optical alignment for tight tolerance. Adhesive or heat bonding secures the domes in place.
Some arrays use an upper spacer or cover layer with embossed windows to keep the domes centered during pressing. This layer may also include vents for air pressure equalization during actuation.
Finally, the entire array undergoes electrical testing and tactile force validation. The goal is clear: uniform feedback, zero defects, and long-term reliability.
What are the types of dome arrays?
Dome arrays come in many types. Choosing the right one is key to functionality.
Single-layer dome arrays are simple. Just domes placed on adhesive PET sheets. They’re perfect for cost-sensitive projects with straightforward interfaces.
Double-layer arrays include a spacer or top cover film to enhance dome retention and alignment. This is especially useful in mobile devices or harsh environments.
Three-layer constructions often involve circuit layers—like silver paste traces on flexible circuits—integrated within the array itself. These eliminate the need for separate PCBs in some cases.
Depending on the shape, you can select from round, triangle, cross, or oblong domes. Each shape has a unique tactile feel. Round domes are crisp. Cross domes are softer. Triangle domes give a short, punchy feel.
How to connect dome array to PCB?
Connecting a dome array to a PCB is simple but must be done with care. The most common method is pressure-sensitive adhesive. The array is aligned with PCB contacts and pressed in place.
To maintain signal accuracy, alignment holes or fiducial marks ensure dome-to-pad precision. When done right, it ensures fast, consistent electrical contact and eliminates the need for soldering.
How does the dome array work?
When pressure is applied to the dome, it collapses and touches the circuit below. This closes the switch and sends a signal. Once released, the dome springs back, opening the circuit.
This snap action creates a tactile “click,” giving users physical confirmation of the press. It’s fast, reliable, and works without a complex mechanism.
What are the applications of dome array?
In medical devices, they’re used for quick response keypads. The tactile feedback helps users know the button is pressed—even with gloves.
In automotive controls, dome arrays withstand vibration, heat, and pressure. They’re ideal for dashboards and steering wheel buttons.
Consumer electronics rely on them in game controllers, mobile phones, and remote controls—where quick response and crisp feel are crucial.
Industrial control panels, point-of-sale systems, and smart appliances also use dome arrays. Because they’re reliable, compact, and cost-effective.
Why choose Best Technology to manufacture dome array?
When you need a dome array manufacturer, you want more than a vendor. You want a partner who listens, advises, and delivers—flawlessly.
That’s where Best Technology stands out.
We bring over 18 years of industry experience, engineering precision into every dome array we build. Our team supports custom projects from concept to delivery. We help define force curves, layout, materials, and even tooling.
Our manufacturing is done in state-of-the-art facilities in China and Vietnam. That means flexible capacity, consistent quality, and fast lead times. Whether it’s a prototype or large-scale production, we can handle it—on time, every time.
We don’t just offer dome arrays. We provide peace of mind.
Our arrays are 100% electrically tested, ensuring every piece performs as intended. We also conduct tactile force testing to make sure each dome clicks like the first—every time.
And we’re not just about specs. We’re about people. Our support team is responsive, knowledgeable, and always ready to help.
Choosing Best Technology means fewer surprises, better performance, and products your customers can trust.
Conclusion:
Custom dome arrays aren’t just components. They’re essential to performance, user experience, and product quality. From design to delivery, every step matters.
Best Technology brings expertise, experience, and excellence together to deliver dome arrays that just work—beautifully, consistently, and affordably.
Do you need a dome array? BEST Technology is at your service at any time. Reach out to us today at sales@metal-domes.com
