摘要:
A modified liquid encapsulated Czockralski method for growing a single crystal of compound semiconductor is disclosed. This method uses two vessels. An inner vessel is filled with an inactive gas, a gas of an element of group V and optionally an impurity gas. The inner vessel encloses a crucible containing compound semiconductor material, an encapsulant material, and optionally an impurity element. An outer vessel is filled only with the inactive gas. The total pressure of the inner atmosphere is equal to or higher than that of the outer atmosphere. The partial pressure of the gas of the element of group V is larger than the dissociation pressure of the element of group V near the melting point of the compound semiconductor.
摘要:
A hologram recording material comprises one of bismuth silicon oxide and bismuth germanium oxide, and Fe added to these material. The density of Fe is 10 p.p.m.
摘要:
A process for growing single crystals of the III-V compound semiconductor is provided, which is the vapor pressure control method using a vertical puller and which is characterized by dividing the surface area of the melt into two sections, covering one section with a liquid encapsulant while remaining the other section in contact with the atmosphere of the vessel (furnace), and this process may be preferably carried out by using an apparatus which comprises a sealable vessel, an upper shaft, a lower shaft, a plurality of heaters, a crucible and a means for dividing the surface of melt contained in the crucible, and as a result single crystal of III-V compound semiconductor having various excellent properties such as low impurity content (high purity), low dislocation density, and the like may be obtained.
摘要:
An apparatus for growing single crystals of III-V compound semiconductors of the vapor pressure control type using a vertical puller characterized by dividing the surface area of a melt into two sections, covering one section with a liquid encapsulant while maintaining the other section in contact with the atmosphere of the vessel (furnace). The apparatus comprises a sealable vessel, an upper shaft, a lower shaft, a plurality of heaters, a crucible and a means for dividing the surface of the melt contained in the crucible. As a result, single crystals of III-V compound semiconductors having various excellent properties such as low impurity content (high purity), low dislocation density and the like maybe obtained.
摘要:
An optical voltage and electric field sensor for detecting the voltage or electric field applied to a device made of a single crystal of bismuth silicon oxide (Bi.sub.12 SiO.sub.20) or bismuth germanium oxide (Bi.sub.12 GeO.sub.20) is disclosed. The device comprises a plurality of crystal plates stacked in a direction perpendicular to the propagation direction of light, each plate having only one dimension reduced to a very small size.
摘要:
It is intended to display, in a 3D-CG animation, a high-quality background image that is free of distortion due to a pan of a viewing camera. Pre-rendering images of three-dimensional background scenes are mapped over the inside surfaces of respective virtual spheres 70ak−1 and 70ak, and viewing cameras 71ak−1 and 71ak are defined at the centers of the respective virtual spheres 70ak−1 and 70ak. When a three-dimensional model of a movable object such as a character model enters one of the virtual spheres, a region clipped by the pyramidal visual field of the viewing camera located at the center of the virtual sphere is projected onto a display screen.
摘要:
A task management system includes a game terminal and a server. The game terminal acknowledges user designation of whether positional information indicating a position arbitrarily designated by a user on a map of a scale displayed on the terminal or positional information indicating the current position of the terminal should be added to data that should be stored in the server along with the positional information. The game terminal transmits the data to which user designated positional information is added to the server. The server stores the data transmitted from the game terminal along with the positional information.
摘要:
According to one embodiment, an electronic component includes a cylindrical former proper, a thick portion provided at the end of the former proper and projecting from the outer surface of the former proper, a connecting portion adjacent to the thick portion including a terminal assembly, and a wire wound around the former proper and electrically connected to the terminal assembly. The thick portion includes a first retaining portion in which the wire running from the terminal assembly to the former proper is retained.
摘要:
A stabilized carbon cluster conducting material comprising (i) a core comprising a conducting or superconducting carbon cluster and (ii) a sheath covering the core; a device comprising a substrate having thereon a film of a conducting or superconducting carbon cluster covered with a protective film capable of substantially preventing permeation of oxygen and water in the atmosphere; and processes for producing the stabilized carbon cluster conducting material and the device.
摘要:
A method of making a holographic light guide comprising, in sequence, a substrate, a light guiding layer and a holographic recording layer that partially replaces the light guiding layer is disclosed. The substrate is made of a first bismuth sillenite group substance. The light guiding layer is made of a second bismuth sillenite group substance that has a higher refractive index than the first bismuth sillenite group substance and absorbs little of the light being guided. The holographic recording layer is made of a third bismuth sillenite group substance that has a higher refractive index than the first bismuth sillenite group substance and has a degree of photosensitivity.