Abstract: A mountable electronic circuit module which produces appropriate characteristics without a complicated structure can be a DC-DC converter including a baseboard made of a magnetic material. A helical electrode is provided in the baseboard so as to function as a smoothing inductor device. Capacitor devices in addition to a DC-DC converter IC are mounted on a main surface of the baseboard. A circuit electrode arranged to connect the circuit devices is provided to enable the circuit devices to function as the DC-DC converter. The DC-DC converter is mounted on a motherboard through external connection electrodes of the capacitor devices.

Abstract: A composite module is obtained which enables high-density mounting of components without increasing its size. A composite module includes a main substrate which is a multilayer circuit board, a sub-substrate mounted on a lower surface of the main substrate, a sealing layer arranged on the lower surface of the main substrate to cover the sub-substrate, the sealing layer defining a mount surface arranged to be mounted on a mount board, and terminal electrodes disposed on the mount surface. The terminal electrodes include at least one first terminal electrode drawn directly from the main substrate and at least one second terminal electrode drawn directly from the sub-substrate.

Abstract: An antenna device is arranged to transmit or receive a radio frequency communication signal to or from an external device such as a reader/writer, and is arranged such that an antenna resonance circuit including an antenna coil and a capacitor is connected to an additional resonance circuit including an inductor and a capacitor. A radio frequency IC device preferably includes the antenna device and a radio frequency IC. The antenna device is constructed such that a change in characteristics thereof caused by a change in the distance between a radio frequency IC device and a reader/writer is minimized, and the radio frequency IC device performs communication with high reliability.

Abstract: A wireless IC device prevents deviations of the resonant frequency from the desired value. An antenna coil has an end portion positioned in a connector provided on the negative-most side in the z-axis direction and an end portion positioned in a connector provided on the positive-most side in the z-axis direction. A wireless IC is electrically connected to the end portions. A via hole conductor is provided between the end portion and the wireless IC and penetrates through a plurality of insulator layers. A via hole conductor is provided in the antenna coil such that the length of a current path thereto from the end portion is the shortest among a plurality of via hole conductors. The distance between the via hole conductor and the via hole conductor is larger than the distances between the penetrating via hole conductor and the via hole conductors.

Abstract: A wireless IC device includes a plurality of insulating sheets that are stacked on top of one another. Coil electrodes are arranged so as to sandwich the insulating sheets therebetween and define an antenna coil by being connected to one another. The coil electrodes are superposed with one another and thereby define a single ring when viewed in plan from a z-axis direction.

Abstract: A wireless IC device prevents deviations of the resonant frequency from the desired value. An antenna coil has an end portion positioned in a connector provided on the negative-most side in the z-axis direction and an end portion positioned in a connector provided on the positive-most side in the z-axis direction. A wireless IC is electrically connected to the end portions. A via hole conductor is provided between the end portion and the wireless IC and penetrates through a plurality of insulator layers. A via hole conductor is provided in the antenna coil such that the length of a current path thereto from the end portion is the shortest among a plurality of via hole conductors. The distance between the via hole conductor and the via hole conductor is larger than the distances between the penetrating via hole conductor and the via hole conductors.

Abstract: A communication system that allows a mobile station to locate a slave and that can be used outside a communication range of a base station of a mobile communication network is provided. A slave transmits and receives information to and from a mobile station, such as a cellular phone, by short-range wireless communication. The slave acquires positioning information on its present position and sends it together with identification information from a short-range wireless communication unit. The mobile station includes a receiving portion, a storage portion, a signal determining portion, and a display portion. The receiving portion receives a transmission signal from the slave, and the signal determining portion compares identification information contained in the transmission signal with identification code registered in the storage portion to determine whether they match.

Abstract: The invention provides a method of forming a concavo-convex pattern by partly removing a magnetic layer and a carbon protective layer in an intermediate product of a magnetic recording medium having at least the magnetic layer and the protective layer formed on a substrate surface, wherein the magnetic layer is partly removed to form the concavo-convex pattern by a dry etching method using a etching gas of a mixture gas of argon and a deposition gas containing one or more types of carbon compounds. Also disclosed is a method of manufacturing a patterned medium type magnetic recording medium employing the method of forming a concavo-convex pattern.

Abstract: The present invention provides a manufacturing method of a semiconductor module which enables the joining at a low temperature within a short time and can obtain more reliable joining portions by performing the joining without using a solder joining medium.

Abstract: A method for manufacturing a patterned magnetic recording medium that allows processing only required sites with high precision, in a dry etching process during formation of an uneven pattern in an interlayer. The method includes forming sequentially, on a substrate, a soft magnetic layer, an etching stop layer, a seed layer, an interlayer, a hard mask layer and a resist; obtaining a resist pattern by patterning the resist; obtaining a patterned hard mask layer by etching the hard mask layer using the resist pattern as a mask; stripping the resist pattern; obtaining a patterned interlayer by etching the interlayer using the patterned hard mask layer as a mask; stripping the patterned hard mask layer; and forming a magnetic recording layer by forming a perpendicular orientation section on the patterned interlayer, and forming a random orientation section on the seed layer.

Abstract: An antenna device is arranged to transmit or receive a radio frequency communication signal to or from an external device such as a reader/writer, and is arranged such that an antenna resonance circuit including an antenna coil and a capacitor is connected to an additional resonance circuit including an inductor and a capacitor. A radio frequency IC device preferably includes the antenna device and a radio frequency IC. The antenna device is constructed such that a change in characteristics thereof caused by a change in the distance between a radio frequency IC device and a reader/writer is minimized, and the radio frequency IC device performs communication with high reliability.

Abstract: The present invention provides a manufacturing method of a semiconductor module which enables the joining at a low temperature within a short time and can obtain more reliable joining portions by performing the joining without using a solder joining medium.

Abstract: The present invention provides an electronic part mounting method which enables joining of electrodes at a low temperature and within a short time, can obtain the high reliability and, further, enables joining at a fine pitch. In an electronic part mounting method which joins circuit electrodes which are formed over a circuit board and die electrodes which are formed over the electronic parts thus mounting the electronic parts on the circuit board, a low-melting-point metal layer is preliminarily formed over the circuit electrode and/or the die electrode and, thereafter, the circuit electrode and the die electrode are arranged to face each other and are heated and pressurized for melting low-melting-point metal thus diffusing the low-melting-point metal into the circuit electrode and the die electrode by solid-liquid diffusion.

Abstract: A method of characterizing a video includes the steps of extracting frame images from an input video, calculating a time length between each of the frame images and a next one of the frame images, assigning index information determined by the calculated time length to each of the frame images, stringing together the index information assigned to the frame images, and characterizing the input video by the strung-together index information. The index information is a character code, and the strung-together index information is a character code string. The frame images include head frame images located at scene changes of the input video. The input video is being broadcasted or is included in a data base.

Abstract: A method of characterizing a video includes the steps of extracting frame images from an input video, calculating a time length between each of the frame images and a next one of the frame images, assigning index information determined by the calculated time length to each of the frame images, stringing together the index information assigned to the frame images, and characterizing the input video by the strung-together index information. The index information is a character code, and the strung-together index information is a character code string. The frame images include head frame images located at scene changes of the input video. The input video is being broadcasted or is included in a data base.

Abstract: A method of characterizing a video includes the steps of extracting frame images from an input video, calculating a time length between each of the frame images and a next one of the frame images, assigning index information determined by the calculated time length to each of the frame images, stringing together the index information assigned to the frame images, and characterizing the input video by the strung-together index information. The index information is a character code, and the strung-together index information is a character code string. The frame images include head frame images located at scene changes of the input video. The input video is being broadcasted or is included in a data base.

Abstract: A method of characterizing a video includes the steps of extracting frame images from an input video, calculating a time length between each of the frame images and a next one of the frame images, assigning index information determined by the calculated time length to each of the frame images, stringing together the index information assigned to the frame images, and characterizing the input video by the strung-together index information. The index information is a character code, and the strung-together index information is a character code string. The frame images include head frame images located at scene changes of the input video. The input video is being broadcasted or is included in a data base.

Abstract: A method of characterizing a video includes the steps of extracting frame images from an input video, calculating a time length between each of the frame images and a next one of the frame images, assigning index information determined by the calculated time length to each of the frame images, stringing together the index information assigned to the frame images, and characterizing the input video by the strung-together index information. The index information is a character code, and the strung-together index information is a character code string. The frame images include head frame images located at scene changes of the input video. The input video is being broadcasted or is included in a data base.

Abstract: A method of characterizing a video includes the steps of extracting frame images from an input video, calculating a time length between each of the frame images and a next one of the frame images, assigning index information determined by the calculated time length to each of the frame images, stringing together the index information assigned to the frame images, and characterizing the input video by the strung-together index information. The index information is a character code, and the strung-together index information is a character code string. The frame images include head frame images located at scene changes of the input video. The input video is being broadcasted or is included in a data base.

Abstract: A method of characterizing a video includes the steps of extracting frame images from an input video, calculating a feature of each of the frame images, assigning index information determined by the calculated feature to each of the frame images, stringing together the index information assigned to the frame images, and characterizing the input video by the strung-together index information.