Custom Membrane Switch & Graphic Overlay Manufacturer

Since 2004 | ISO 9001:2015 | 10M+ Actuation Cycles Tested Custom membrane switches, graphic overlays, and force sensors for medical devices (IEC 60601), automotive electronics (IATF 16949), industrial control panels, and aerospace systems. From 4-key prototypes in 14 days to 50,000+ unit production runs with 100% functional testing.

LID is a Foshan-based membrane switch manufacturer that has been serving OEMs in 30+ countries since 2004. We manufacture tactile, non-tactile, backlit, and IP67-sealed membrane keypads, plus graphic overlays and force sensors – from 4-key prototypes to 200+ pin medical control panels. What sets us apart: ISO 9001:2015 quality system, MIL-STD-105E sampling, in-house IP67 testing, and a documented 1-million-actuation cycle guarantee. First prototype in 14 days; production MOQ is 250 pieces.

Why Choose LID for Custom Membrane Switches

Why Global Leaders Partner with LID

Trusted Global Leader in Custom Membrane Switch Solutions

Our core expertise revolves around precision-engineered custom membrane switches (ISO 9001 certified), complemented by a full suite of advanced user-interface components. Explore our medical-grade touchscreens, rugged elastomeric keypads, and automotive-compliant capacitive sensors to elevate your device’s functionality and aesthetics.

Unparalleled Customization for Unique Challenges

From FDA-compliant materials to IP67-rated waterproof seals, we tailor every aspect of your membrane switch:

Material Selection: High-performance polymers, conductive inks, and adhesives.
Design Flexibility: Ergonomic shapes, backlit graphic overlays, and 3D tactile feedback options.
Functional Integration: EMI shielding, IoT connectivity, and custom circuitry.
Spider-hand tray stacking machine integrates robot vision and flexible vibrating trays. It precisely pick-and-place metal domes with a placement accuracy of 0.1mm, and operates at a speed of 3500 to 4500 pieces per hour.

Membrane Switch Quality Assurance & Testing for Mission - Critical Applications

Our 12-step quality process includes:

1M+ actuations (polydome standard) / 10M+ (metal dome premium) tested per UL 746C and MIL-STD-810G
Salt Spray Resistance (ASTM B117, 500+ hours)
EMI/RFI Shielding Verification
RoHS/REACH Compliance(EU/UK regulations)
Backed by a 1-year warranty, our solutions are trusted in medical, aerospace, and defense industries.

Tactile or Non – Feedback Options

Custom Membrane Keypad Solutions

Transform Your User Interface

Custom Graphic Overlay Design & Printing

Seamless Control and Sleek Design

Capacitive Force Sensor Solutions

Custom Membrane Switch Solutions by Industry

Discover how our membrane switch and user interface solutions are making a difference in various industries.

Ranging from the high-precision requirements of the aerospace industry to the critical-care needs in healthcare, our cutting-edge membrane switch, graphic overlays and force sensors are meticulously crafted to elevate user experiences and operational efficiency across diverse sectors.

Industry Control Membrane Switch Manufacturer

Control Panels

Process Control Systems

Human-Machine Interface (HMI)

Industrial Automation

Motor Control

Environmental Control

Automotive Electronics Custom Membrane Switch

Instrument Clusters

Steering Wheel Controls

Door Panels

Center Consoles

Dashboard Interfaces

Seat Adjustment Controls

Healthcare Interface Durable Tactile Membrane Switch

Patient Monitoring Systems

Diagnostic Equipment

Infusion Pumps

Laboratory Equipment

Surgical Instruments

Electrotherapy Devices

Membrane Switch Project Portfolio

Every time you touch it you’ll find it precise and dependable. Our projects integrate high reliability HMI technologies – waterproof, backlit, shielding, delivering precise and dependable interactive experiences for users.

Watch this video to see how our transparent flexible printed circuit has transformed user interactions in a real-world application, enhancing both functionality and aesthetics.

Membrane Switch Manufacturing Process

To make sure a keypad or sensor goes from idea to customer hands without a hitch we usually follow a set of clear steps during the design making and delivery stages.

Customer Consultation

Design preferences, functionality, and quantity.

Design and Engineering

Creating a detailed design for the switch.

Material Selection

Membrane layer, graphic overlay and adhesive layers.

Manufacturing

Production, assembly and test, one-station-solution.

Hear What Our Partners Say About Collaborative Innovation

What Our Clients Say

"We've been ordering membrane keypads with tactile membrane from LID for over three years now. What stands out is their consistency - our latest batch of 5,000 units came through with zero defects on incoming inspection. Their 100% functional testing before shipment gives us confidence to go straight to our assembly line."

Dave NorthcottGeneral Manager, Industrial Equipment

"During pilot sample evaluation, LID's engineering team was highly responsive to our feedback on tail cable positioning and overlay material changes. They provided corrected samples within two weeks and included a detailed FAI report covering all critical dimensions. The approved design has been in production for 18 months without any quality issues."

Vishal PanchalAPAC Strategy Manager

"After we reported an LED alignment issue on one batch, LID responded with a complete 8D corrective action report within 5 working days. They implemented 100% LED inspection (color, brightness, alignment) as a permanent process change. The follow-up test lot of 2,000 pieces was flawless. That level of accountability is rare in our supply chain."

Hetarth patelOperations Director

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Challenges and opportunities are what give us energy and purpose.

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Key Performance

Numbers That Speak to Our Dedication & Scale

Running Projects

Custom Solutions

Turn over(Million/USD)

Employees

Trusted by Global Industry Leaders

Global Clients, Shared Success

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Membrane Switch Frequently Asked Questions

Explore our FAQ section to find answers to common questions about our membrane switch buttons, customization services, manufacturing process, and more.

About Us

What products does your company mainly produce?

Our company specializes in manufacturing custom graphic overlays, membrane keyboards, and keyboard PCBs. Additionally, we offer touchscreens, elastomeric keypads, and capacitive sensors to meet diverse user – interface requirements.

Which industries have you served?

Our products and services are widely used in multiple industries. In the industrial control field, they are used for control panels, process control systems, etc. In automotive electronics, they cover dashboards, steering wheel controls, etc. In the healthcare industry, they are involved in patient monitoring systems, diagnostic equipment, etc. Whether it is the aerospace field with extremely high requirements for product reliability or the consumer electronics industry that focuses on user experience, we can provide suitable solutions.

Product - related

What types of membrane keyboards are there?

We offer two types of membrane keyboards: tactile and non – tactile. Tactile membrane keyboards provide obvious tactile feedback when the keys are pressed, allowing you to clearly perceive the key operation. Non – tactile membrane keyboards, on the other hand, offer smooth and quiet operation, which can meet different scenario requirements. For example, in occasions where quiet environment is emphasized with less demand for operation feedback or in equipment control scenarios with high requirements for operation accuracy.

What can be customized for custom graphic overlays?

The customizable content for custom graphic overlays is rich and diverse. You can customize the shape of the graphic overlay to perfectly fit the appearance of your product. In terms of artwork and graphic design, you can add brand logos, personalized patterns, etc. to enhance the visual effect and brand recognition of the product. You can also choose different materials and colors to meet the functional and aesthetic needs of the product. For example, use weather – resistant materials for outdoor equipment and choose materials with bright colors and comfortable textures for consumer electronics.

Some types of membrane switches we produced: Including membrane switches with LED lights, EL cold light source backlit membrane switches, anti-static membrane switches, capacitive touch circuit membrane switches, silicone and FPC combined switches, sensor panel membrane switches, etc.

How do membrane switches achieve IP67 waterproofing?

IP67 protection is achieved through three layered defenses: 1. A continuous polyester top overlay with no gaps around keys 2. Pressure-sensitive sealing adhesive bonding the overlay to the lower circuit layer 3. A perimeter seal frame around the entire switch boundary We test every IP67 design per IEC 60529: 1-meter water immersion for 30 minutes. For more demanding applications (washdown environments, food-grade), we can offer IP68 and NEMA 4X compliance.

Customization Process

What is the process for customizing membrane switches?

The customization process mainly consists of the following steps. First is customer consultation, where you need to inform us of your design preferences, functional requirements, and customization quantity. Then comes the design and engineering stage, where our team will create a detailed product design plan according to your needs. After that is material selection. We will select appropriate film layers, graphic overlay layers, and adhesive layers according to the product’s usage scenario and performance requirements. Finally, it enters the manufacturing stage for production, assembly, and testing, providing you with a one – stop solution to ensure a smooth and efficient process from idea to physical product.

What is the lead time for custom membrane switches?

Standard lead times after design freeze: • First article / prototype: 14 days • Pilot run (50-500 pcs): 3-4 weeks • Mass production (1,000+ pcs): 5-6 weeks Lead time can be shortened to 10 days for prototypes with rush charges. Complex multi-layer assemblies with custom domes, EL backlighting, or EMI shielding may add 1-2 weeks. We commit to a binding schedule after DFM review (typically 2 business days).

What is the MOQ for custom membrane switches?

Production MOQ is 250 pieces for most designs. Samples and first articles run at 5 to 25 pieces, so you can approve feel, fit and colour before production tooling.

Do you provide DFM (Design for Manufacturing) feedback on customer designs?

Yes, free of charge. Send us your design file (AI, PDF, Illustrator, or Gerber) and we will return DFM feedback within 2 business days, covering: circuit trace optimization, tail layout, dome selection, overlay material recommendations, and cost reduction opportunities.

What file formats do you accept for custom artwork?

Adobe Illustrator (AI), PDF, EPS, and SVG for graphic overlays. Gerber files (RS-274X) for PCB-based switches. CAD files (DWG, DXF, STEP) for tooling. For first design iteration, even a hand sketch or PowerPoint mockup works—we will translate it to production-ready artwork.

Cooperation and Communication

How can I get in touch with you?

You can contact us in multiple ways. If it’s convenient for you to make a call, you can dial our phone number 0757 – 84992835, and our customer service staff will answer your questions in a timely manner. You can also send an email to info@tactilemembrane.com, describing your needs and questions in detail. In addition, you can find the online consultation entrance on our website and communicate with our customer service in real – time. We are always ready to serve you.

Is it convenient to communicate if I have special design requirements?

It’s very convenient! We have a professional and experienced team that is happy to listen to and fulfill your special design requirements. You can communicate with us through the above – mentioned contact channels and tell us your design ideas, sketches, or concepts in detail. When communicating, try to provide relevant information such as the product application scenario, functional requirements, and target audience. This will help us better understand your needs and provide you with a more suitable customization plan. Throughout the customization process, we will maintain close communication to ensure that the final product meets your expectations.

What support can I get when cooperating with you?

From the start of the project, our team will provide you with comprehensive support. In the product design stage, our engineers will provide professional design suggestions according to your needs and optimize the product design. During the production process, we will timely feedback the production progress to you, allowing you to know the order status at any time. After product delivery, we also provide after – sales technical support to answer the questions you encounter during product use. If you have any improvement suggestions or new needs for the product, we will also respond actively and continue to provide services for you.

Can you serve as a second source supplier for membrane switches?

Yes. We routinely take over production from existing suppliers (Memtron, Snaptron, Esterline, IEE, and others). The tooling transfer process typically takes 3-4 weeks, including design review, drawing translation, tooling fabrication, and first article approval. We can usually match or improve on original cost and lead time.

Technology and Innovation

What investments do you make in the R&D of membrane switch technology?

We attach great importance to technology research and development and invest a considerable proportion of our revenue in technology innovation every year. We have established a professional R&D team composed of material scientists, electronic engineers, and industrial designers, etc. They are constantly exploring the application of new materials in membrane switches, such as developing more flexible and durable membrane materials to improve the overall performance of products. At the same time, we actively introduce advanced production processes, such as high – precision printing technology and laser etching technology, to improve the production accuracy and quality of products. In addition, we also cooperate with well – known scientific research institutions in the industry to jointly carry out cutting – edge technology research, ensuring that our products are always at the forefront of technology.

What innovative designs do your membrane switches have?

Our membrane switches have a number of innovative designs. For example, we have adopted capacitive touch technology, which has a faster response speed and a longer service life compared to traditional mechanical contacts and can achieve more sensitive touch operations. In the design of graphic overlays, we use 3D printing technology to create keys with unique textures and three – dimensional effects, enhancing the appearance quality and user experience of products. In addition, we have also developed smart membrane switches that can be connected to the Internet of Things system to achieve remote control and data interaction, providing customers with more intelligent solutions.

How are new technologies integrated into existing products?

When there are new technology research and development results, we will first conduct a comprehensive technical evaluation to analyze their compatibility with existing products and potential advantages. Then we will formulate a detailed technology integration plan and make corresponding adjustments from product design, material selection to production process. In the product design stage, we will integrate the functional requirements of new technologies into the product architecture. In material selection, we will select appropriate materials according to the characteristics of new technologies to ensure the optimization of product performance. During the production process, we will upgrade or transform production equipment and processes to adapt to the production requirements of new technologies. Before the product is launched, we will conduct strict tests, including performance tests, compatibility tests, and stability tests, etc., to ensure that the integration of new technologies will not affect the quality and reliability of products.

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