Abstract:
A semiconductor device includes at least one semiconductor constructing body provided on one side of a base member, and having a semiconductor substrate and a plurality of external connecting electrodes provided on the semiconductor substrate. An insulating layer is provided on the one side of the base member around the semiconductor constructing body. An adhesion increasing film is formed between the insulating layer, and at least one of the semiconductor constructing body and the base member around the semiconductor constructing body, for preventing peeling between the insulating layer and the at least one of the semiconductor constructing body and base member.
Abstract:
A desulfurizing agent is produced by mixing a copper compound, a zinc compound and an ammonium compound with an aqueous solution of an alkali substance to prepare or precipitate followed by calcitrating the resulting precipitate to form a calcined precipitate into a shape form of a copper oxide-zinc oxide-aluminum oxide mixture. The shaped form is impregnated with iron or nickel and calcined to produce a calcined oxide and reduced with hydrogen to form a sulfur-absorption desulfurizing agent.
Abstract:
First, a trench formed in parts of a semiconductor wafer, a sealing film and others corresponding to a dicing street and both sides thereof. In this state, the semiconductor wafer is separated into silicon substrates by the formation of the trench. Then, a resin protective film is formed on the bottom surface of each silicon substrate including the inner part of the trench. In this case, the semiconductor wafer is separated into the silicon substrates. However, a support plate is affixed to the upper surfaces of the columnar electrode and the sealing film via an adhesive layer. Therefore, when the resin protective film is formed, it is possible to prevent the entirety including the separated silicon substrates from being easily warped.
Abstract:
A crucible protection sheet is provided that can prevent damages to an inner crucible, hinder an outer crucible from silicon-carbidization, and transmit heat from the outer crucible to the inner crucible uniformly.In a crucible having an inner crucible 2 and an outer crucible 3, the crucible protection sheet is arranged between the two crucibles and is made of expanded graphite. The planar thermal conductivity is 120 W/(m·K) or higher, the gas permeability is less than 1.0×10−4 cm2/s, and the compression ratio is 20% or higher when the sheet is compressed in a thickness direction at a pressure of 34.3 MPa. Since the compression ratio is high, the effect of preventing breakage is great when inserting the inner crucible, improving workability and preventing the inner crucible from tilting inside the outer crucible. In addition, even though the compression ratio is high, the thermal conductivity is kept to such a degree that the inner crucible can be heated uniformly, and the gas shielding capability is also ensured. As a result, the outer crucible is prevented from silicon-carbidization and thickness decrease.
Abstract:
An information reproduction and recording apparatus able to prevent invalid data not required for recording from being recorded on a recording medium when transferring reproduced information by a small number of signal lines such as a three-line serial peripheral interface, wherein a music data reproducing unit outputs a data signal DATA and clock signals LRCK and BCK to a valid recording period control unit and outputs a SPACE signal to the valid recording period control unit while outputting music data containing track interval data, the signals are transferred to a high speed encoder and the data signal DATA is encoded and recorded on a hard disk by an HDD based on the clock signals LRCK and BCK while the SPACE signal is being output, and the valid recording period control unit suspends transfer of the clock signal LRCK and prevents recording of invalid data on the hard disk while the SPACE signal is not being output.
Abstract:
A semiconductor device includes at least one semiconductor constructing body provided on one side of a base member, and having a semiconductor substrate and a plurality of external connecting electrodes provided on the semiconductor substrate. An insulating layer is provided on the one side of the base member around the semiconductor constructing body. An adhesion increasing film is formed between the insulating layer, and at least one of the semiconductor constructing body and the base member around the semiconductor constructing body, for preventing peeling between the insulating layer and the at least one of the semiconductor constructing body and base member.
Abstract:
A circuit substrate of a grounding structure of a semiconductor device according to the invention has a plurality of connection pads and a grounding wiring. The semiconductor device has a semiconductor substrate having one side face and the other side face opposite thereto, an insulating film formed thereon, an SOI integrated circuit provided thereon and including a plurality of connection pads, and electrodes for external connection each of which is connected to the corresponding connection pad. The semiconductor device has the external connection electrodes connected to the respective connection pads of the circuit substrate by a face-down bonding scheme. An under-filling material is provided between the semiconductor device and the circuit substrate, and there is provided a connection member which connects the other side face of the semiconductor device with the grounding wiring of the circuit substrate, and is made of a conductive material.
Abstract:
In a method of manufacturing a copper-zinc-aluminum-based methanol reforming catalyst by coprecipitation, the methanol reforming catalyst is obtained by using a copper compound, a zinc compound and aluminum hydroxide, mixing them with an alkaline substance to produce a precipitate, calcining the precipitate obtained, and reducing the calcined product. Thus, a method is provided for manufacturing a highly active, highly heat resistant and durable methanol reforming catalyst which can be used for a long time even under reaction conditions of 300° C. and higher.
Abstract:
The present invention provides a NOx reducing catalyst comprising BEA zeolite which is ion-exchanged with Co to have a Co/Al ratio between 0.2 and 0.6 and is loaded with at least one metal selected from among Ca, Sr, Ba, La, Mn, Ag, In, and Ni. The present invention also provides a NOx reduction process comprising the use of the catalyst of the present invention. The catalyst of this invention provides high activity, high NOx reduction selectivity and durability at low temperature in an actual exhaust gas containing water vapor and other substances disturbing catalytic activity even at low temperature and at low NOx and hydrocarbon concentration.
Abstract:
A carbon monoxide sensor including a gas detecting portion and at least a pair of electrodes, wherein the gas detecting portion includes a metal oxide represented by a following formula;Cu.sub.1-x Bi.sub.x O.sub.y(0