Abstract: A self-transforming flexible electronic device, according to an embodiment of the present invention, comprises: a substrate having flexible properties and a flexible electronic device attached thereon; shape memory alloys provided on one lateral side of the substrate; and photoresists for fixing the shape memory alloys to the substrate, wherein the shape memory alloys are arranged on the substrate in the form of a plurality of lines, the photoresists are disposed in plurality along the extension direction of each shape memory alloy, and the shape memory alloys can be fixed inside the photoresists and at a predetermined distance away from the substrate.

Abstract: A self-transforming flexible film, according to an embodiment of the present invention, comprises: a substrate having flexible properties and a flexible electronic device attached thereon; shape memory alloys provided on one lateral side of the substrate; and photosensitizers for fixing the shape memory alloys to the substrate, wherein the shape memory alloys are arranged on the substrate in the form of a plurality of lines, the photosensitizers are disposed in plurality along the extension direction of each shape memory alloy, and the shape memory alloys can be fixed inside the photosensitizers and at a predetermined distance away from the substrate.

Abstract: Embodiments of the invention are directed towards a sliding liquid level sensor which is mounted in a fuel tank of a vehicle for detecting a remaining amount of a liquid fuel in the tank. The liquid level sensor has a float, a plurality of electrodes, and a sliding contact point configured to slide on the electrodes in accordance with a displacement of the float. The electrodes preferably contain 100 parts by weight of a silver-palladium alloy and preferably 3-20 parts by weight of glass. The silver-palladium alloy preferably contains 20-60% by weight of silver and preferably 80-40% by weight of palladium. The sliding contact point is made from a palladium-nickel alloy that preferably contains 70-90% by weight of palladium and preferably 30-10% by weight of nickel.

Abstract: Embodiments of the invention are directed towards a sliding liquid level sensor which is mounted in a fuel tank of a vehicle for detecting a remaining amount of a liquid fuel in the tank. The liquid level sensor has a float, a plurality of electrodes, and a sliding contact point configured to slide on the electrodes in accordance with a displacement of the float. The electrodes preferably contain 100 parts by weight of a silver-palladium alloy and preferably 3-20 parts by weight of glass. The silver-palladium alloy preferably contains 20-60% by weight of silver and preferably 80-40% by weight of palladium. The sliding contact point is made from a palladium-nickel alloy that preferably contains 70-90% by weight of palladium and preferably 30-10% by weight of nickel.

Abstract: The present invention relates to a wafer level package and a method of manufacturing the same. The wafer level package includes a first substrate including a first region and second regions with grooves around the first region; a semiconductor device positioned in the first region; first sealing members positioned in the grooves; a second substrate including projection units corresponding to the second regions in order to form a cavity corresponding to the first region; and second sealing members which are positioned above the projection units and laminate the first and second substrates to each other by being bonded to the first sealing members, and can prevent the sealing members from flowing to any region except for the sealing regions.