Silicone buttons are mainly composed of silicone material and conductive material. The silicone material has the characteristics of flexibility, high temperature resistance, and corrosion resistance; while the conductive material is mainly a metal oxide film.
Silicone Keypad Production and working
Silicone keypads are made by compression molding process. The process basically uses a combination of pressure and temperature to create pliable surfaces around central electronic contacts. Silicone keypads are designed to produce a uniform tactile response across the entire surface.
The principle of silicone keypad is based on the characteristics of silicone materials. Silicone has good elasticity and can be deformed by pressing. It is also conductive and can conduct current. In the design of silicone keypads, conductive carbon powder or metal particles are often used to conduct current.
When the user presses the silicone keypad, the gap between the top and bottom of the key is filled and deformed, so that a current path is established between the conductive particles, allowing current to pass through the key. When the silicone key is released, the characteristics of the elastic material cause the key to return to its original state, disconnecting the current path and stopping the current flow. In this way, the device can determine the state of the key by sensing the presence or absence of current.
Silicone keypads are chosen for their durability, as the silicone material and the conductive elements inside can withstand thousands of presses over the lifetime of the device. The flexibility and resilience of silicone help maintain the integrity of the keypad, ensuring it continues to function reliably over time.
Customizing Silicone Keypads
The versatile nature of silicone allows for a huge degree of customization of the keypad itself. The amount of pressure that it takes to press a key can be changed by modifying the “hardness” of the silicone. Roc Keypad is a supplier specializing in high volume and low volume custom silicone keyboards at competitive prices. If you have a project about custom silicone keypad, let us send you some many design options.