Abstract:
A communication device has a first communication section that supports a first communication mode having a low communication rate and a second communication section that supports a second communication mode having a higher communication rate than the first communication mode. The communication device includes a packet generation section and a communication control section. The packet generation section generates a first portion containing authentication information used for connection authentication for the second communication mode and a second portion other than the first portion. The communication control section performs control to cause the first communication section to transmit the first portion and to cause the second communication section to transmit the second portion after the connection authentication succeeds using the authentication information contained in the first portion.
Abstract:
A semiconductor photodetection device includes a semiconductor structure including an optical absorption layer having a photo-incidence surface on a first side thereof, a dielectric reflecting layer formed on a second side of the semiconductor structure opposite to the first side, a contact electrode surrounding the dielectric reflecting layer and contacting with the semiconductor structure, and a close contact electrode covering the dielectric reflecting layer and contacting with the contact electrode and the dielectric reflecting layer, wherein the close contact electrode adheres to the dielectric reflecting layer more strongly than to the contact electrode.
Abstract:
A semiconductor photodetection device includes a semiconductor structure including an optical absorption layer having a photo-incidence surface on a first side thereof, a dielectric reflecting layer formed on a second side of the semiconductor structure opposite to the first side, a contact electrode surrounding the dielectric reflecting layer and contacting with the semiconductor structure, and a close contact electrode covering the dielectric reflecting layer and contacting with the contact electrode and the dielectric reflecting layer, wherein the close contact electrode adheres to the dielectric reflecting layer more strongly than to the contact electrode.
Abstract:
A mounting substrate on which a semiconductor element is to be mounted by flip-chip bonding, the semiconductor element having a surface on which a plurality of electrode terminals are arranged in a line, each of said electrode terminals having a protruded electrode formed thereon, wherein the surface of the mounting substrate on which the semiconductor element is to be mounted is provided with a protective film having an opening corresponding to an area of the semiconductor element where the protruded electrodes are located, a plurality of connection electrodes being arranged in the opening, the connection electrodes being provided with a solder for bonding it to the protruded electrodes, and being arranged at the same interval as that of the protruded electrodes, and each of the connection electrodes being connected to a wiring pattern of the mounting substrate, and wherein the length of a portion of the connection electrode from the center of the opening to the end thereof that is not connected with the wiring pattern is 150 &mgr;m or larger. A structure having a semiconductor element mounted on the substrate is also disclosed.
Abstract:
A semiconductor device and method to control generation of a void within resin during supply to an area between a semiconductor chip and a substrate body. The substrate body includes a wiring layer which is connected to an external bump through internal wiring. Solder resist is formed on the substrate body and an aperture in the solder resist exposes a plurality of pads to electrically connect with the semiconductor chip. During loading of the semiconductor chip, the resin is supplied to the aperture. The aperture is formed in a circumferential shape to control generation of the void.
Abstract:
A synthetic fiber having an uneven surface structure consisting of wrinkles having ridges and recesses of the surface of the fiber and not presenting specular luster, which may be used, for example, as artificial hair for wigs, can be produced easily and stably by melt-spinning a starting synthetic resin such as nylon and passing the spun mono-filament through a cooling bath at a temperature not lower than 30.degree. C. for a period of time sufficient for developing wrinkles in its surface. Inclusion of a pigment such as carbon black in an appropriate amount in the starting material is effective in providing dense distribution of wrinkles.
Abstract:
A semiconductor optical integrated device includes a substrate having a main surface with a first and second regions arranged along a waveguiding direction; a gain region including a first cladding layer, an active layer, and a second cladding layer arranged on the first region of the main surface; and a wavelength control region including a third cladding layer, an optical waveguide layer, and a fourth cladding layer arranged on the second region of the main surface and including a heater arranged along the optical waveguide layer. The substrate includes a through hole extending from a back surface of the substrate in the thickness direction and reaching the first region. A metal member is arranged in the through hole. The metal member extends from the back surface of the substrate in the thickness direction and is in contact with the first cladding layer.
Abstract:
A communication device has a first communication section that supports a first communication mode having a low communication rate and a second communication section that supports a second communication mode having a higher communication rate than the first communication mode. The communication device includes a packet generation section and a communication control section. The packet generation section generates a first portion containing authentication information used for connection authentication for the second communication mode and a second portion other than the first portion. The communication control section performs control to cause the first communication section to transmit the first portion and to cause the second communication section to transmit the second portion after the connection authentication succeeds using the authentication information contained in the first portion.
Abstract:
A protection element and a secondary battery device employing the protection element are provided for stably retaining a flux on a soluble conductor at a predetermined position, so as to enable appropriate blowout of the soluble conductor in the event of an abnormality. The protection element has a soluble conductor which is disposed on an insulation baseboard, and which is connected to a power supply path of a device targeted to be protected, and which causes a blowout when a predetermined abnormal electric power amount is supplied. A flux is coated on a surface of the soluble conductor, and an insulation cover member is mounted on the baseboard and covers the soluble conductor. The protection element also includes a stepped portion for retaining the flux at a predetermined position in contact with the flux, and the stepped portion is formed opposite to the soluble conductor on an interior face of the insulation cover member.
Abstract:
An information processing apparatus for communicating with a different information processing apparatus, includes: a first connection establishment block configured to control a first communication section, which carries out nearby wireless communication for delivering and accepting information to and from the different information processing apparatus positioned near to the information processing apparatus, to establish a connection for the nearby wireless communication; an acquisition block configured to acquire setting information for short range wireless communication which exhibits a wire communication range than the nearby wireless communication and capability information regarding the capacity of the different information processing apparatus from the different information processing apparatus through the nearby wireless communication; and a second connection establishment block configured to control a second communication section, which carries out the short range wireless communication, based on the setting information and the capability information to establish a connection for the short range wireless communication.