Hitachi, Ltd.

Hitachi Metals, Ltd.

Renesas Technology Corp.

Takeyuki Itabashi

Haruo Akahoshi

Hiroshi Kanemoto

Akio Takahashi

Takao Ishikawa

Naoki Nishimura

Tadashi Iida

Eiji Takai

Yoshinori Ueda

Hiroshi Nakano

Matahiro Komuro

Yuichi Satsu

Katsumi Ishikawa

Takao Imagawa

Masafumi Nojima

Hisashi Tanie

Hiroshi Yoshida

Hitoshi Suzuki

Masahiro Suzuki

Ryuji Watanabe

Tsutomu Imai

Osamu Miura

Masafumi Noujima

Masatoshi Sugimasa

Nobuhiko Chiwata

Yukio Ookoshi

Toshio Haba

Motoki Wakano

Fujiko Kinosaki

Motoo Futami

Noriyuki Sakuma

Masaya Ichinose

Yoshio Homma

Atsushi Shimada

Yukinobu Maruyama

Shinichi Fukada

Shin Nishimura

Kazumasa Ide

Hiroshi Arita

Akiyoshi Komura

Kinya Kobayashi

Toshiro Saito

Youichi Horii

Mitsugu Matsutake

Shinya Oohara

Shinji Yamada

Sunao Funakoshi

Yuzo Kozono

Kazumi Fujii

Masashi Miyazaki

Akihiro Sano

Toshinari Takada

Junji Tamura

Rituji Toba

Ryo Ota

Satoru Amo

Fujiko Yutani

A semiconductor device having stacked semiconductor chips is provided wherein alignment of even thin semiconductor chips of a large warpage is easy and thus high assembling accuracy and high reliability are ensured. Semiconductor chips having hollow through-silicon via electrodes each formed with a tapered portion are melt-joined using solder balls each having a core of a material higher in melting point than solder. When melt-joining the semiconductor chips, the temperature is raised while imparting an urging load to stacked semiconductor chips, thereby correcting warpage of the semiconductor chips. In each chip-to-chip connection thus formed, if the connection is to prevent the occurrence of stress around the electrode due to the urging load, a solder ball having a core of a smaller diameter than in the other connections is used in the connection.

Semiconductor device including arrangement to control connection height and alignment between a plurity of stacked semiconductor chips

Recovery of dehydrogenation product must be done separately from supply of hydrogen fuel. However, there is a problem that it takes much time when dehydrogenation product recovery and fuel filling are done separately. A fuel filling/waste solution recovery apparatus includes measuring means to measure a volume of supplied fuel and a volume of recovered waste solution by measuring flow rates of solutions passing through a fuel filling nozzle and a recovery nozzle or piping, and a display which shows the volume of supplied fuel and the volume of recovered waste solution which are measured by the measuring means.

Fuel filling and waste solution recovery apparatus and fuel vessel

Managing system for emissions environmental pollutants comprising: a measuring device for measuring a flow rate of a fuel supplied to a customer; an unit emission quantity storage device of environmentally influential substance for storing a unit emission quantity of an environmentally influential substance emitted when an unit flow rate of fuel is manufactured or processed; and an emission quantity computing device of environmentally influential substance for calculating, based on the fuel flow rate measured by the measuring device, and the unit emission quantity of the environmentally influential substance stored by the unit emission quantity storage device, an environmental emission quantity of the environmentally influential substance emitted when the fuel supplied to the customer is manufactured or processed.

Managing system and method for emissions of environmental pollutants

In a fuel tank for containing a hydrogen storing material and a product generated by dehydrogenation reaction of the hydrogen storing material, comprising, a fuel chamber for containing the hydrogen storing material, a waste chamber for containing the product, and a tank envelope for containing the fuel chamber and the waste chamber, the fuel tank further comprises a partition wall fluidly separating the fuel chamber and the waste chamber from each other and being movable to change a ratio in volume between the fuel chamber and the waste chamber, and each of the fuel chamber and the waste chamber has a valve to be hermetically closed.

Fuel tank including movable or deformable fuel chamber and waste chamber

A novel structure capable of reducing the stress in the insulating layer in the semiconductor element and thereby securing reliability is provided. When the semiconductor element and the substrate are connected with a solder, the stress generated in the insulating layer is reduced by placing a spherical core made of a material having a greater rigidity inside the solder and satisfying the following inequalities: 1 GPa&#x3c;(Young's modulus of a encapsulation resin)&#x3c;30 GPa, 20 ppm/k&#x3c;(linear coefficient of expansion of the encapsulation resin)&#x3c;200 ppm/k, and 10 MPa&#x3c;(yield stress of the solder at room temperature)&#x3c;30 MPa. At the time of connection, the thickness of the solder to be placed between the land on the surface of the semiconductor element and the core is adjusted to 1/10 or less of the terminal pitch.

Semiconductor device

An object of the present invention is to improve a yield of electronic devices in a ball mounting process by preventing a micro-bonding and change in color of the solder balls, and to improve a bonding reliability of the solder balls by reducing an oxide film on a surface of the solder ball. The solder ball has a surface thereof coated with an organic compound containing a cyclic structure and an aliphatic hydrocarbon group.

Solder ball

A magnet which includes ferromagnetic powder to be mainly a mother phase containing iron or cobalt. The ferromagnetic powder is provided with a high-resistance layer which has a resistance higher than or equal to ten times as high as a resistance of the mother phase and a Vickers hardness lower than a Vickers hardness of the mother phase. The high-resistance layer is being formed partially or entirely on the surface of the ferromagnetic powder.

MRI apparatus with high-resistance magnet

A lamellar high resistance layer having resistivity ten times or higher than that of a mother phase containing iron or cobalt is formed and an oxygen content is controlled to 10 to 10000 ppm so that the reliability and residual magnetic flux density are increased.

Low loss magnet and magnetic circuit using the same

The object of the present invention provides an evaluation system for evaluating accurately emission amount of environmental influence substance of fuel in a fuel supply facility for supplying stored fuel to a consumer. An evaluation system evaluates the emission amount of environmental influence substance of fuel in which the environmental properties (greenhouse gas emissions) accumulated in the process of drilling a first energy, transporting and storing, producing fuel, and supplying the fuel are taken into account. The evaluation system enables to present the environmental properties of the sold fuel to the fuel consumer and allows the fuel consumer to select, thereby promoting the reduction of emission amount of the greenhouse gas of the fuel supplier and the fuel consumer.

Evaluation system for amount of emission gases through fuel supply chain

A wind turbine-driven hydrogen production system controlling a power converter system such that the wind turbine stays in its operable range for a longer time and thus the hydrogen production system produces hydrogen for a longer time. The wind turbine-driven hydrogen production system varies an amount of electrical current supplied to an electrolytic hydrogen production system according to the rotational speed of the wind turbine to reduce variations in the rotational speed. Furthermore, the pitch angle of the wind turbine varies according to the speed. Thus, variations in the speed of the wind turbine can be reduced. A permanent-magnet generator is used as the electricity generator of the wind turbine to obtain a power supply at start-up. Alternatively, a power storage system used as assistive equipment at start-up is supplementarily added or only a power supply for the controllers is supplied from a system.

Hydrogen production system using wind turbine generator

In electric plating of supplying a current between an anode electrode and a cathode electrode as a plated body immersed in a plating solution thereby forming a plated film comprising a conductor on a surface of the cathode electrode, a preliminary electrolytic electrode that comes in contact with the plating solution before the cathode electrode comes in contact with the plating solution is disposed, and the cathode electrode is brought into contact with the plating solution while supplying a preliminary electrolytic current between the preliminary electrolytic electrode and the anode electrode, whereby a uniform plated film with no voids can be formed while suppressing dissolution of the underlying conductive film in the electric plating treatment.

Electric plating method, electric plating apparatus, program for plating, recording medium, and manufacturing method and manufacturing apparatus for semiconductor device

An object of the invention is to provide an engine system driving an engine by using a hydrogen rich gas generated from a medium chemically repeating a hydrogen absorption and a hydrogen desorption as one of fuels, in which the engine system can efficiently generate a hydrogen rich gas from the medium. In an engine system which mounts a medium chemically repeating a hydrogen absorption and a hydrogen desorption thereon, is provided with a hydrogen supplying apparatus generating or storing a hydrogen rich gas from the medium, and drives an engine by using the hydrogen rich gas as one of fuels, the engine system has a detecting portion detecting an operating state of the engine, and a medium supplying amount control means controlling a supplying amount of the medium supplied to the hydrogen supplying apparatus in correspondence to a result of detection of the detecting portion.

Engine system

A hydrogen fuel manufacturing system capable of efficiently producing each hydrogen fuel in accordance with a demanded quantity is disclosed. The system includes a hydrogen manufacturing apparatus for manufacturing hydrogen, more than two hydrogen fuel manufacturing apparatuses for manufacturing hydrogen fuels by letting the hydrogen produced by the hydrogen manufacturing apparatus change into a fuel-use form, wherein the fuel form to be manufactured by the hydrogen fuel manufacturing apparatuses is set to have more than two kinds. Additionally the system has a hydrogen fuel production volume receiver device for receipt of the information as to a hydrogen fuel production volume, thereby controlling the production volume of the hydrogen fuel being manufactured by the hydrogen fuel manufacturing apparatus, based on the hydrogen fuel production volume information as received by the hydrogen fuel production volume receiver device.

Hydrogen fuel manufacturing method and system with control program for use therein

Eddy current generated around a magnetic circuit in an MRI apparatus is one of the causes of deviation from an ideal magnetic field gradient waveform and causes image distortion, loss of strength, ghost generation, loss of signal, and spectral distortion. An object of the present invention is to suppress the generation of the eddy current. In an MRI apparatus, a ferromagnetic material formed from powder is used in a part of a magnetic circuit: the powder mainly comprising a mother phase containing iron or cobalt and showing ferromagnetism; and a high-resistance layer having a resistance not less than ten times as high as the mother phase and a Vickers hardness lower than that of the mother phase being formed in layers along parts of the surface of the powder on parts or the entire of the surface.

To use a catalyst material, which has a functional group that covalently binds to a catalyst metal particle on the surface of a catalyst carrier, and a catalyst metal particle that covalently binds to the functional group, for a fuel cell.

Catalyst material and method of manufacturing the same and fuel cell using the same

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Hitachi, Japan

Takeyuki Itabashi