Abstract: The present invention provides: a multilayer film structure which has high crystallinity and planarity; and a method for producing this multilayer film structure. This multilayer film structure is provided with: an Si (111) substrate; a first thin film that is arranged on the Si (111) substrate, while being formed of a nitride material and/or aluminum; and a second thin film that is arranged on the first thin film, while being formed of a nitride material. An amorphous layer having a thickness of 0 nm or more but less than 1.0 nm are present on the Si (111) substrate; and the full width at half maximum (FWHM) of a rocking curve of the (0002) plane at the surface of this multilayer film structure is 1.50° or less.

Abstract: A coil device includes: a core including a winding core part and a flange part at an axial end part of the winding core part, a coil part including a first wire and a second wire wound around the winding core part, a first terminal electrode, formed on a flange part mounting surface and a lead-out part of the first wire is connected, and a second terminal electrode, formed on the mounting surface of the flange part spaced apart from the first terminal electrode and a lead-out part of the second wire is connected, in which the flange part includes a concave part, recessed from the upper surface of the flange part and from an outer end surface of the flange part in order to have bottoms. The coil device is easy to connect a wire and has excellent bonding strength even when the connecting part becomes the mounting surface.

Abstract: A lamp socket device includes a socket body preferably made of a resilient material and a pair of electrically conductive terminals disposed therein and each including clamping portions having free ends bent as locking arms and a base having a locking hook bent from an upper edge thereof in a direction transverse to the locking arms. The locking arms and hooks are held in engagement with inner walls of the socket body which are positioned in mutually transverse relation. The terminals are thus easily and firmly mounted in place in the socket body against undesirable electric faults such as short-circuiting while the lamp socket device is used in a vibratory condition. Waterproof sealing characteristics and vibration resistance of the socket are improved by forming the socket body of resilient material.