Two common faults of microwave ovens are mostly related to membrane switches or FPC printed circuits: (1) Failure of most switches in the keyboard. Leakage of electricity on thin-film switches or FPC is a common cause of such failures. Leakage is caused by long-term damp or moisture erosion on the microwave computer bo...

From hospital equipment and engineering controls to telephone systems and household appliances, membrane keyboard are used in a wide variety of applications. At first glance, one might assume that a membrane keyboard is nothing more than a standard keyboard, similar to the type used with computers. While they share som...

Membrane switch is an integral sealing structure composed of flat multi-layer films. The key switch, panel, mark, symbol display and liner are sealed together. The integration of light, mechanism, electricity, and integration rose in the 1980s. A new type of electronic components that can perform operating system tasks...

The colors which are used in a company’s logo or other interface design have a major impact on how the company (brand) is viewed as a whole. Color reference guides (like Pantone) and Adobe color tools make it fast and easy to select colors. But they don’t always translate well into the final production process. You h...

History has fixed in the minds of membrane-switch engineers the belief that 100 ohms is the maximum circuit resistance they should build into their products. The ability to achieve this low level of circuit resistance was made possible through the availability of highly conductive silver inks with volume resistivities ...

The more mechanical items like wires, cable, conenctors and switches also require circuit symbols. Although, in some respects they do not always contribute to the circuit operation in the same way as resistors, capacitors and active devices, they are nevertheless equally important and have their circuit symbols. There ...

Circuit boards typically rely on membrane switches to turn parts of the device off and on. There are two main membrane switches in use today on printed circuit boards. One is referred to as a tactile membrane switch, and the other is called a non-tactile membrane switch. Each switch performs a different function on the...

A membrane switch is the interface that connects the user to a machine, device, or other types of equipment. It is the control panel, facilitating functionality and enabling the user to control the product. The graphic overlay is one of the most important aspects of the membrane switch. The graphic overlay is the facep...

Medical equipment and devices must be designed with rigorous standards to function in environments where patient safety and product reliability are critical. Today, there is great demand for innovative, feature-rich, and affordable electronic equipment to be used in diagnostic labs, hospitals, and clinics, as well as f...

This articles shows how to read circuit diagrams for beginners in electronics. Learn to read electrical and electronic circuit diagrams or schematics. A drawing of an electrical or electronic circuit is known as a circuit diagram, but can also be called a schematic diagram, or just schematic. Circuit or schematic diagr...

Choosing the proper adhesive for your membrane switch is one of the more critical decisions you can make during the design process. Achieving a solid bond between your membrane switch and the surface to which it is adhered is vitally important to reducing failures and ensuring the long term reliability of your product....

The membrane switch connector connects the keypad to the actual product, device or machine. The connector includes contacts and a molded plastic housing. Membrane switches are usually designed with flexible tails, which are cut from the circuit material, which is inserted or connected to the printed circuit board throu...