Membrane Switch Manufacturer - CSI Keyboards, Inc. (978) 532-8181

 

CSI Keyboards, Inc.
56 Pulaski Street
Peabody, MA 01960
(978) 532-8181
http://csikeyboards.com/membrane-switches/

Membrane Switch - CSI Keyboards, Inc. (978) 532-8181

 

CSI Keyboards, Inc.
56 Pulaski Street
Peabody, MA 01960
(978) 532-8181
http://csikeyboards.com/membrane-switches/

The Vital Role of Membrane Switch

Are you interested in technical equipment? You have recently heard of Membrane Switch. This article will give you more exclusive details about the equipment. This simple electric equipment may warp your head to understand the underlying concepts. Whether it is a TV remote or an air conditioner remote, you will find the application of these switches everywhere. It is the right time to get a clear idea about the membrane switches. You will be surprised to identify how these switches are constructed in real life.

The basic facts

Before jumping into the technical factors, certain things need to be cleared first. You may be thinking about the unique factors of these switches. So, membrane switches are unlike other mechanical switches. So, the Membrane Switch will help the operators create a communication system within the devices. It is similar to toggle switches. Keypads keyboards are similar to these switches as they interface the similar mechanisms. So, if you want to control any device, you need these special switches.

How they are constructed

The construction can be varied from one manufacturer to another. They decide the seat specification and the types of Membrane switch. In general, this type of way switches requires four layers. The topmost layers serve as the graphic interface. It covers the printed circuits. The circuits are made up of copper or polyimide. Pressure sensing adhesive is used to construct the layers. This helps to help together with all the mechanical components. Here are two types of membrane switches available in the market; the first one is tactile. It incorporates dome-like shapes. It gives the user a feeling of pressing the button. The one type is the non-tactile one. It is included in the audio speakers or the lED indicators.  

What are the applications?

You will find multiple applications of the Membrane Switch. The first common one is consumer electronics. You are where you find the application of these switches in consumer electronics like Remote, Security keypads, heating/ cooling control systems, Household appliances, and Computer keyboards. Apart from this, medical equipment also uses these switches. For instance, the emergency call buttons apply to the membrane switches. You will find it in surgical equipment, IV pumps, Staff communications devices, Drug delivery systems, Feeding pumps, etc.

How do they work?

The switches were developed back in the 1970s. Their mechanical functionaries are associated with open circuit mechanisms. Here, open circuit connections run through the circuit conductive links. When the operator presses the keys, the bottom and top circuits are connected through momentary shorts. Due to the short signals, the desired operations are done by these circuits. Remember that certain things are associated with such quick functionaries; graphic overlay consists of the manual buttons and interacts with the operator directory. Then there comes the graphic attachment adhesive. The next levels are the top circuits, spacer adhesive, button circuits, and backer adhesive. All of these layers are customizable to facilitate certain functions. For more information visit here: CSI Keyboards, Inc.

Reasons To Use A Membrane Switch For Different Devices

The electrical switches are a vital part of various electronic devices and their primary function is controlling the circuit. When you turn on the switch, the electrical circuit receives the power to function. Similarly, when you turn it off, the circuit closes and stays without power. Although the mechanical switches are commonly used for various devices, a more popular option is the membrane switches. As the Membrane Switch comes with flexible substrate and printed circuits, they have a low profile. Due to a compact and slim design and the compact structure, several companies use them in the buttons of appliances and all other applications that require low-profile designs.

Shielding and cleanliness

The antimicrobial film present on the Membrane Switch ensures high-grade cleanliness in different devices. Due to the compounds present in the film it becomes easy to check the growth of bacteria and reduces the task burden of the professionals. Besides, the design of the membrane switches provides protection against electrostatic discharge and using a polymer circuit that redirects and destroys the unwanted discharges. Due to the effect of shielding, you can prevent the intervention of the unwanted signals and prevent the malfunction of equipment. Due to the beneficial features and functions of the membrane switches, you can easily reach out for the benefits during the operation of mechanical devices.

Water-resistance

The Membrane Switch is a convenient option as it is water-resistant and blocks the entry of other liquids. You are sure to come across these switches in the IP ratings that offer protection from water and other liquids. Due to the smooth surface of the membrane switch, the eater and the liquids roll off from the side instead of entering the circuit. For all the outdoor applications weather elements, such as rain and snow are likely to cause damage, the membrane switches come as handy. Although dirt and debris accumulate on the mechanical switches and look unclean, all you need is dust the membrane switches with a lint-free cloth.

Graphics and sealable

You can customize a Membrane Switch to meet various aesthetic specifications. From a wide range of color pallets and graphics, it is easier to differentiate between the switches. Besides the aesthetic features, the wide viewing angle and the indicator lights improve the visibility. Furthermore, you can seal the switches against the entry of chemicals, water, and other substances. Furthermore, the membrane switches integrate gaskets and seals with full perimeter to protect the internal circuit of the device.

Tactile feature and backlighting

The Membrane Switch includes tactile feedback and you cannot fail to notice the physical sensation that the electric switch creates. Due to the convenient design of the membrane switches and the tactile feature, they deform easily when pressed and returns to the normal shape when released. Backlighting is a significant feature of the membrane switches and the colored compounds illuminate the switches. You may also notice membrane switches in the LED bulbs, making them more energy-efficient and having good longevity. No wonder, the membrane switches are extensively used in medical devices. When buying the switch, you need to order with a reputed manufacturer to get the best quality goods at affordable rates. For more information visit here: CSI Keyboards, Inc.

4 Key Benefits of Membrane Switches

Technology is changing at a rapid pace over the years. Most of you nowadays prefer the Membrane Switch in place of the conventional mechanical switch. The alternative to the traditional form of switch is basically an electrical switch consisting of a flexible material. There are several benefits of the switch that will make anyone pick the alternative. In the following post, you will get to know in detail about all the benefits that you can enjoy if you are purchasing this type of switch.

Benefit #1: Resistant to moisture and weather

Using the mechanical switchboards. Especially for outdoor use, it becomes risky and the cause of short circuits, leading to major accidents. Contrary to the way the mechanical switches suffer from damage on exposure to moisture, the Membrane Switch has a high weather and moisture resistance level. The design of the membrane switches has a top layer of waterproof material that will cover all the keys. The layer prevents the entry of water into the underlying circuitry. Hence. When you plan to use the switchboard for external use, you can always consider membrane switches as the ideal option. It is perfect for the areas where moisture can be a trouble.

Benefit #2: Design is low profile

Space constriction is always a problem with the placement of the switchboard. The mechanical switchboards occupy a certain area. But the Membrane Switch can have a low profile that will help in minimum space consumption. Just go and take a look at the microwave in the kitchen. Most of the microwaves have membrane switches for the control buttons. It is because, within the small area, the manufacturers have to accommodate the control panel for all the functions of the switches. Hence, the low profile design is accurate for use in miniature products with switches.

Benefit #3: Tactile feedback

Tactile feedback is one of the characteristic features of mechanical switches. However, the Membrane Switch will produce comparatively lesser tactile feedback than the mechanical switches. Still, the feedback is noticeable enough to reduce the chances of input or typing errors. The cause of the tactile feedback is the embossment of the top layer of these switches or the embedding of snap dome keys beneath the top layer. Both the options are effective in producing tactile feedback. It is a convenient feature for the user that helps you to detect glitches.

Benefit #4: Backlighting

There is a multitude of backlighting options for the membrane switches. One of the most popular solutions for backlighting is the LED or light-emitting diode. The LED backlighting is always cost-effective with high energy efficiency and significant durability. Other types of backlighting solutions include optical fiber and EL or electroluminescent. Furthermore, the manufacturers can design the keypad using a laser etching procedure to enhance the effect of the entire backlighting solution. These switches are very reliable and can last for thousands of key presses. The simple but impactful design of the switch is responsible for the maximum functionality of the structure. So you can now try the better alternative o the mechanical switches. For more information visit here: CSI Keyboards, Inc.

Installing Your Membrane Switch – All The Key Steps

Membrane switches are touch-sensitive devices. They’re manufactured by printing, clipping, and laminating extremely thin-film plastic materials. That’s why even applying fingertip force on the front surfaces of these switches triggers momentary electrical contacts. A membrane switch manufacturer is essential in various industries. Most medical equipment, electrical appliances, communication tools, and microprocessor-based control systems feature this switch technology. It’s the most reliable front panel solution in the market. These switches offer amazing flexibility. They’re sealed, so cleaning them is also easy. However, you need to install these switches correctly to get the best results. Here are all the key steps for installing membrane switches.

Preparing for Installation

After bringing your membrane switch home, review its bottom side. It should have an adhesive liner. Cut a small portion of the adhesive liner. Turn the switch over and locate the exit slot. You’ll find this slot at the tail end of the switch unit. This slot will be used to mount the switch. Pass your cable through the tail exit slot. Make sure the flex cable passes completely through this slot. Now, locate the back-support indentation on your appliance. Position your switch on this indentation. Use the exposed region of the adhesive liner to stick the switch to your unit’s surface.

Installing the Switch

After sticking the membrane switch to your unit’s surface, hold it at an angle of 45-degrees. While holding the switch in this position, peel off the remaining portion of the adhesive liner. You may need a soft roller for this next step. Gently laminate the switch with the soft roller. Apply very little pressure when rolling the soft roller across the switch’s top surface. Start this step from the side where the adhesive liner is already removed. Roll gently and gradually reduce the angle at which the switch is positioned on the unit.

Finishing Up

After some minutes of gradually lowering the angle of the switch, the lamination process will be complete. Avoid pressing the circuits or domes on the switch during this process. There’s a risk of air bubbles forming in-between the different switch layers. To avoid this, use the soft roller at the lowest possible angles. This will help avoid air bubbles. Now, start bending and pressing your circuit (very gently) - the lamination is done. However, make sure no damage is caused to the switches in the first few minutes of use. Be extra careful to ensure the buttons or the metal domes on the switch don’t invert or bend. Or else the switch may not function properly.

Final Take

Once you’ve completed the installation, avoid lifting the switch at all costs. Even slightly repositioning the switch could invert the domes or the buttons. The installation process is critical to ensuring you make the most out of your purchase. Every membrane switch manufacturer recommends it. Follow every step to ensure you don’t accidentally damage your switch during installation. Use this step-to-step installation guide if you’re installing your membrane switches on your own. If an engineer or electrician is taking care of your installation process – make sure they exercise utmost care. For more information visit here: CSI Keyboards, Inc.

Unique Features of Different Types of Domes Used In A Tactile Membrane Keypad

 A membrane keypad may be made up of tactile and non-tactile switches. The tactile switches are fitted with metal domes and provide the users with tactile feedback after pressing a key. The non-tactile switches may not provide the users with tactile feedback. However, the entire keypad or each non-tactile membrane key is backlit using LED, LGF, EL or a combination of fiber-optic films and LED. The backlit keys become illuminated after being pressed. Thus, tactile and non-tactile membrane keypads can both provide the users with feedback.

It is possible to add the metal domes of varying sizes and shapes when manufacturing a tactile membrane keypad. The metal domes are fitted to the underside of the graphic interface. They are open contacts that complete the circuit once a membrane key has been pressed. The metal domes can provide the users with consistent tactile response alongside enabling the manufacturing companies to create durable switches that can be used in any type of environment. The metal domes are made of stainless steel. The performance of a tactile keypad depends largely upon the venting of metal domes. In tactile keypads, the air moves in and out from under a metal dome and the phenomenon is known as venting.

A tactile membrane keypad has to be adequately vented in order to perform properly. The absence of venting or inadequate venting may have adverse effects on the function and feel of a tactile switch. The metal domes fitted to a membrane keypad may be four-legged, round, triangular, oval or square in shape. Their size varies depending upon the size of the user-interface. A manufacturing company may customize the shape of metal domes based upon the specifications of different clients alongside customizing their size. The four-legged metal domes are also known as cross metal domes. They are integrated to silver-flex membrane switches, single-sided or double-sided PCB switches and FPC circuits.

The four-legged metal domes last longer than the triangular domes and produce better ‘snap feel’ than a circular or oblong dome. The lifecycle of this type of metal dome is usually higher than one-million. The circuit boards of some of the membrane keypads are made up of two or more layers. The circular/round metal domes are integrated into this type of circuit board. It is also possible to fit this type of metal dome to a precision switch. The circular metal domes are smaller than the four-legged domes and are ideal for a smaller user-interface.

The triangular metal domes are used on a single-sided or double-sided PCB, silver-flex membrane keypad or FPC circuits. The triangular domes can be used with small user-interfaces, such as user-interface of small handheld devices. They can generate a click feel once a switch has been pressed. The triangular metal domes have two legs and can handle up to 6,000 gram-force. For more information visit here: CSI Keyboards, Inc.