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Silicone rubber keypads, possessed many excellent properties, are widely applied in electrical products. The elastic performance of silicone rubber keypads significantly influences the use of the keypads. Most of silicone rubber keypads in market are plug-in type, and few of silicone rubber keypads are designed for Surface Mount Technology (SMT) process, which results in high human cost and low production...
Polymethyl Methacrylate (PMMA) is an important macromolecule material with high plasticity, which is also widely used in the manufacturing of LED diffusion plates, because it has several advantages, such as excellent optical transparency, chemical stability, good weather resistance, radiation resistance and surface hardness (no scratch). It also can be completely recycled and easy processing. However,...
Light-emitting diode (LED) is a promising semiconductor optoelectronic device, which has small size, long life, environmental protection and many other advantages. Due to its nanosecond time response of luminescence, LED can achieve high-speed modulation of information. Indoor LED lighting source is regarded as communication base station, through high frequency flashing of the lighting source to pass...
Conductive silicone keypads are widely applied in many electrical products. However, they are still followed the plug-in mounting design up to now. In this study, in accordance with the development direction of Surface Mounted Technology (SMT) microelectronics packaging components, a SMT silicone keypad in quad flat no lead (QFN) form is proposed. First, the SMT silicone keypad is modeled by using...
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