A membrane switch including a first membrane, a second membrane, a first electrode disposed on the first membrane, a second electrode disposed on the second membrane, and an adhesive layer is provided. The first membrane and the second membrane are combined to each other by the adhesive layer, such that the first electrode faces the second electrode and a gap exists therebetween. At least one air tunnel is formed in the adhesive layer to communicate the gap with an external environment.

A membrane switch including a first membrane, a second membrane, a first electrode disposed on the first membrane, a second electrode disposed on the second membrane, and an adhesive layer is provided. The first membrane and the second membrane are combined to each other by the adhesive layer, such that the first electrode faces the second electrode and a gap exists therebetween. At least one air tunnel is formed in the adhesive layer to communicate the gap with an external environment.

A front panel overlay having a plurality of layers and one or more logic circuits incorporated therein is disclosed. One of the plurality of layers may have a first electrical contact and another one of the plurality of layers may have a second electrical contact. The one or more logic circuits may be incorporated at least indirectly within the plurality of layers and may be activated when the first electrical contact completes an electrical circuit with the second electrical contact.

The invention discloses a translucent keycap and a method of fabricating the same. The translucent keycap according to the invention includes a translucent base, a first colored translucent layer, a light-shielding layer and a second colored translucent layer. The first colored translucent layer overlays an outer surface of the translucent base. The light-shielding layer overlays the first colored translucent layer, and has a hollowed region. The hollowed region penetrates the light-shielding layer such that a portion of the first colored translucent layer is exposed within the hollowed region. The second colored translucent layer covers the hollowed region. When a light travels upward from beneath the translucent keycap, the light is capable of passing through the translucent base, the first colored translucent layer, the hollowed region and the second colored translucent layer such that the hollowed region emits a color light.

A light-transmissible keycap and the manufacturing method thereof are provided. The light-transmissible keycap has multiple light-transmissible symbol areas, and each light-transmissible symbol area has at least one character assigned with a color. Each light-transmissible symbol area is covered with only one light-transmissible color layer. Thus, when an external light is emitted from a light source beneath the keycap, the external light will only pass through one light-transmissible color layer covering that light-transmissible symbol area, and not pass through the light-transmissible color layer covering the other light-transmissible symbol area. Therefore, a bleeding problem due to multiple light-transmissible color layers overlapped and covering the same light-transmissible symbol area is avoided.

Disclosed are a switch and a manufacturing method thereof. The switch comprises a base substrate; and an electrode disposed on a first surface or a second surface of the base substrate. The flexible electrode includes: a substrate in a range of about 5 to 70 vol %; conductive particles embedded in the substrate in a range of about 29.9 to 94.9 vol %; and a degradation inhibitor in a range of 0.1 to 1 vol %, based on a total of 100 vol % of the electrode. In particular, the substrate of the electrode is flexible and thus the electrode is flexible.

A dike as an epoxy squeeze out barrier in a fuse device is provided. The fuse device can include first and second layers of laminate material, a cavity formed by central openings of the first and second layers of the laminate material, a fuse element that is supported by at least one of the first and second layers of the laminate material and traverses the cavity, an adhesive located on at least one of the first and second layers of the laminate material for bonding thereof, and a dike located on at least one of the first and second layers of the laminate material and surrounding a circumference of the cavity. When the first and second layers of the laminate material, the fuse element, the adhesive, and the dike are pressed together during manufacture, the dike can prevent the adhesive from flowing into the cavity.