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Custom Membrane Switches’ 7 Detailed Manufacturing Process

Table of Contents

Custom black membrane switch panel with a large circular button featuring a white spiral design and ‘VEKO’ brand name, accompanied by twelve smaller round buttons for various functions.


Custom membrane switches manufacture entails a number of painstaking stages, all of which are essential to producing a dependable, high-quality product that satisfies the unique requirements of the client. Every stage of the process, from the first requirement analysis to the last testing and packing, is closely supervised and managed to guarantee that the finished product meets or surpasses client expectations. Manufacturers may create membrane switches that are exceptional in terms of performance, longevity, and customer satisfaction by making sure that there is clear communication, exact design, careful material selection, and rigorous testing.

Requirement Analysis of Custom Membrane Switches

Custom membrane switches manufacture begins with a thorough and detailed requirement study. Gaining a thorough grasp of the client’s unique requirements, expectations, and the intended use of the membrane switches are all dependent on this step. To obtain vital information regarding the application environment—such as temperature ranges, humidity levels, and exposure to chemicals or UV light—in-depth talks and consultations are held with the client.

To ascertain the essential features—such as haptic feedback, actuation force, backlighting, and the incorporation of extra parts like LEDs, screens, or connectors—functional needs are carefully investigated. To make sure the design complements the client’s brand and visual identity, aesthetic preferences are also thoroughly examined. Color schemes, logos, font styles, and other graphical elements fall under this category.

This step results in a specification document that is precise and comprehensive, outlining all the essential design criteria. Every stage of the design and production process is built upon this document, which guarantees that all of the other steps are in line with the client’s expectations. During this phase, any industry-specific or regulatory requirements that must be followed are also evaluated to make sure the finished product complies with all applicable regulations.

Prototype Design of Custom Membrane Switches

Custom membrane switches circuit with flexible green board, conductive traces, and circular button pads for interactive electronic interfaces.

To validate the design concept and functionality, the design team starts working on a prototype based on the thorough requirement analysis. Iterative design, prototype, and feedback cycles are used in this stage to enhance the product until it satisfies the required standards.

The first step in the design process is drawing intricate circuit diagrams that show the electrical routes required for the custom membrane switches to operate. These schematics guarantee the switch’s dependable operation and the accuracy of all electrical connections. The actual arrangement of the keys is decided upon using key layout designs, which guarantee that they are positioned ergonomically for comfort.

The visual look of the custom membrane switches is established using graphic designs. This include creating the user interface’s design and adding components such text, color schemes, and icons. This phase’s material selection is crucial since it will determine the switch’s flexibility, resilience to the elements, and longevity. The selection of materials is determined by their compliance with the intended application and performance attributes.

Iterative prototyping entails creating several iterations of the prototype, each of which incorporates client feedback. By using a feedback loop, the design is continuously enhanced and modified to satisfy the needs of the client. Before moving on with full-scale production, the final prototype functions as a proof of concept, proving that the design is workable and functional.

Material Selection

Custom membrane switch panel with tactile dome switches for responsive user feedback in electronic devices.

Selecting the appropriate materials is a crucial stage in the production of custom membrane switches. The materials chosen have a major impact on the final product’s performance, dependability, and durability. The top layer of the switch, known as the graphic layer, is usually made of polycarbonate (PC) or polyester (PET). These materials were picked because they print easily, are highly durable, and resistant to environmental influences.

Because of its excellent tensile strength, resistance to chemicals, and stability over a broad temperature range, polyester (PET) is preferred. Additionally, because of its extreme flexibility, it can be used in applications where repeated pressing is necessary. Conversely, polycarbonate (PC) is renowned for its resilience to impact, durability, and transparency—qualities that can be advantageous in some situations.

Silver or carbon ink, or other conductive inks, are typically used to create the circuit layer. While carbon ink is selected for its affordability and usefulness in particular applications, conductive silver ink is favored for its exceptional conductivity and dependability. During the selection process, variables including the operating environment, anticipated switch lifespan, and mechanical loads the switch will experience are taken into account.

Another important consideration when choosing a material is environmental resistance. The materials must be able to tolerate exposure to a variety of environmental factors without experiencing performance degradation, including moisture, UV light, and chemicals. This guarantees that during the custom membrane switches’ anticipated lifespan, it will operate dependably in the intended application.

Circuit Printing

Custom circular membrane switch with copper circuit printing and dome-shaped contact points for interactive device interfaces.

Screen printing technology is used in the fabrication of the circuit layer, enabling accurate and reliable printing of conductive inks onto the substrate. To guarantee that the circuits are printed precisely and operate dependably, this procedure calls for extremely precise machinery and painstaking attention to detail.

Making a stencil, or screen, with the intended circuit layout is the first step in the screen printing process. After applying conductive silver or carbon ink to the screen, the circuit pattern is formed by pressing the ink through the screen and onto the substrate with a squeegee. Every layer of the circuit is constructed by repeating this process, which results in the final circuit design.

An essential component of circuit printing is quality control. Every printed circuit is carefully examined to make sure that the ink is applied uniformly and that there are no flaws, including circuit breakage or uneven ink coverage. The printed circuits’ conductivity is measured with high-precision technology to make sure they adhere to the necessary requirements.

When using conductive inks, such carbon or silver ink, printing must be done with exact control and cautious handling. High-performance applications benefit greatly from the exceptional conductivity and dependability of silver ink. Even though carbon ink is less conductive than silver, it is still more affordable and appropriate for a wide range of applications where cost is an important consideration.

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Graphic Printing

Custom circular black membrane switch overlay with glossy finish, featuring icons for power, play/pause, menu, and volume controls.

Similar to circuit printing, screen printing technique is used to print the custom membrane switches’ graphic layer. In order to create the user interface, this entails attaching patterns, symbols, and text that are specific to the consumer to the membrane’s surface. In addition to influencing the switch’s appearance, the graphic layer is essential to its performance because it provides the markings and symbols required for user interaction.

Making a screen with the intended graphic design is the first step in screen printing for the graphic layer. Color, durability, and compatibility with the substrate material are taken into consideration when choosing inks. The required design is then created by applying the selected inks via the screen onto the graphic layer.

Both the custom membrane switches’ appearance and operation depend heavily on the quality of the graphic printing. Clear, robust, and resistant to deterioration and environmental conditions are requirements for printed graphics. Quality control methods are used to make sure that there are no flaws, like smearing or misalignment, and that the printed graphics fulfill the necessary requirements.

The graphic layer’s design is thoughtfully thought out to improve user experience. This entails using easily readable and comprehended typefaces and colors, as well as adding clear and educational symbols and icons. For maximum user satisfaction and simplicity of use, functional indications like buttons and indicators must be placed precisely.

Assembly and Lamination of Custom Membrane Switches

Custom membrane switches panel with black interface, various function symbols, memory setting buttons, and a ribbon cable connector for electronic devices.

Lamination is the procedure used to assemble the different layers of the custom membrane switches. To create a complete custom membrane switch, this method entails carefully aligning and connecting the various layers, including the circuit, spacer, and graphic layers.

For the switch to work as intended and the keys to function properly, precise alignment is necessary. To keep the proper spacing and enable proper key actuation, the spacer layer—which divides the graphic layer from the circuit layer—must be positioned precisely. Keys that are not properly aligned may not function at all or provide inconsistent tactile input.

To guarantee good adhesion between the layers, the lamination process uses regulated temperature, pressure, and time. In order to guarantee that the layers adhere firmly to one another without air bubbles or irregularities, specialized equipment is utilized to apply consistent pressure and heat. Care must be taken during the laminating process to avoid damaging the delicate circuit and graphic layers.

An essential part of the lamination process is quality control. Every laminated custom membrane switches undergoes an examination to guarantee that the layers are correctly positioned and adhered to. Before the switches move on to the next phase of production, any flaws, including misalignment or poor adhesion, are found and fixed.

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Cutting and Testing

Custom membrane switches featuring dome-shaped buttons and an EMI shielding layer for enhanced performance in electronic devices.

Following assembly and lamination, the custom membrane switches are precisely cut with cutting tools to the required dimensions. This stage guarantees that the switches are the right size for the customer and that the edges are defect-free and clean. To guarantee that the switches fit perfectly into the applications for which they are intended, precise cutting is necessary.

After that, custom membrane switches are put through a thorough testing process to make sure it satisfies quality and design criteria. To ensure that there are no breaks or irregularities in the electrical pathways and that the circuits operate as intended, electrical testing is done. To make sure the keys offer the appropriate tactile feedback and continue to function properly even after frequent usage, mechanical testing is done to evaluate the keys’ resilience and responsiveness.

Throughout the testing process, quality control procedures are used to find any flaws or problems. Every switch is examined for both functional and aesthetic flaws, such as non-responsive keys and uneven tactile feedback. Visual issues include misaligned graphics and uneven borders. Any switches that don’t fit the specifications are either redesigned or thrown away.

Packing and sending the custom membrane switches to the customer completes the manufacturing process. The switches are packed with care to avoid any damage during transportation, and comprehensive documentation is given to guarantee that the buyer gets the right components. Labeling, usage and installation guidelines, and any required certifications or compliance paperwork are all included in this.

Case Analysis

Custom membrane switches were necessary for a well-known automaker’s most recent dashboard display. The switches had to be durable enough to endure daily abuse, such as exposure to sunshine, changes in temperature, and repeated button pushes. The needs for design aesthetics, usefulness, and durability were discussed throughout the requirement analysis phase.

The design team went through multiple iterations of the prototype design process to make sure the switches satisfied the client’s requirements. The intricate control functions needed for the dashboard display were carefully accounted for in the circuit schematics. Important layout designs included illumination and tactile feedback for user ease, and were designed for ergonomic use.

The choice of materials for this project was essential. In order to create clear, readable graphics for the display and to endure UV exposure, the graphic layer used a sturdy polycarbonate material. To guarantee long-term dependability and conductivity, premium conductive silver ink was used to print the circuit layers.

Custom membrane switches keypads labeled ‘ORON 60’ by NPM International, featuring symbols for various functions such as power, play, pause, and volume control, with a ribbon cable for connectivity.

To precisely deposit the conductive ink onto the substrate, precision screen printing was used in the circuit printing process. Strict quality control procedures were needed to guarantee consistency and uniformity among all switches. Specialized screens and inks were used in the graphic printing process to produce vivid colors and crisp images that would hold up well in a variety of lighting settings.

To guarantee appropriate functioning and longevity, each layer was meticulously aligned and bonded during assembly and lamination. To keep the dashboard display looking nice, extra care was taken with how the graphic layer aligned. To make sure the switches fulfilled the strict requirements needed for automotive usage, they underwent extensive testing, including mechanical and electrical tests.

The automotive dashboard display’s bespoke custom membrane switches fabrication needed careful design, exact execution, and extensive testing. The manufacturer and the car company worked together to create a high-quality product that satisfied the client’s needs for durability, functionality, and beauty.


In conclusion, creating customized membrane switches is a painstaking process that needs careful preparation and implementation. Understanding client demands requires a thorough understanding of the first requirement analysis process. Design concepts are validated through prototyping, and performance and durability are ensured through material selection.

Accurate results in circuit and graphic printing demand precision. While cutting and testing assure the switches satisfy quality standards, assembly and lamination guarantee correct layer alignment. Despite its complexity, this technique yields premium membrane switches that are customized to meet customer requirements.

We are a professional and experienced company that specializes in designing and manufacturing custom membrane switches. If you would like more information about membrane switches and how they can enhance your user experience, please get in touch with us right away. We can work with you to create a user interface that reflects your vision, style, and personality. We can also help you optimize your user interface for your particular device or application, including its appearance, functionality, and performance.

Choose custom membrane switches those can provide a great user experience instead of settling for a poor user interface that could harm the user experience. Get in touch with us right now, and we will work with you to design a user interface that will enhance your experience.

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