Abstract: A manufacturing method for a semiconductor device according to the present disclosure includes preparing a laminate body including a plurality of semiconductor layers, and a first support body including an upper surface, a side surface, and a recessed portion including an opening adjacent to the upper surface and the side surface, bonding and disposing the laminate body to the upper surface of the first support body, forming a first end surface at the laminate body, and forming a first dielectric layer on the first end surface.

Abstract: A light-emitting body includes a base semiconductor part including a nitride semiconductor, a compound semiconductor part including a nitride semiconductor and positioned above the base semiconductor part, and a first electrode and a second electrode. The base semiconductor part includes first part and second part having a density of threading dislocation extending in a thickness direction lower than that of the first part, at least part of the first electrode and at least part of the second electrode are positioned on the compound semiconductor part, and at least part of the first electrode is positioned above the second part.

Abstract: Providing a system that prevents decrease of attentiveness of drowsiness of a driver of a moving vehicle. A safe-driving support system is provided. The safe-driving support system comprises: a spraying device having a shape being able to be steadily placed near a driving seat of a movable body and spraying in the movable body; a mobile information processing device configured to be able to perform proximity communication with the spraying device and being able to obtain current location information via a GPS; and an information providing server providing the information processing device with information via the Internet.