摘要:
A high-frequency appliance, which is allowed to have an ESD tolerance by using a small-sized and low-cost ESD protection circuit, and in particular, an antenna duplexer having a multi-band high-frequency switch function. There are provided a signal separation unit for separating a first frequency band signal from a second frequency band signal, the second frequency band being lower than the first frequency band, a first SAW filter for inputting the first frequency band signal outputted from the signal separation unit, a second SAW filter for inputting the second frequency band signal outputted from the signal separation unit, and a high-pass filter for permitting passing of the second frequency band signal, and limiting passing of a signal whose frequency band is lower than the second frequency band, the high-pass filter being located on a signal line connecting the signal separation unit and the second SAW filter to each other.
摘要:
A method and system for determining a dry etching endpoint, at which a dry etching process should be terminated. The dry etching process is carried out in a plasma etching system and comprises the steps of detecting an intensity of light emission generated in the dry etching process, the light emission being extracted through a window located on a side wall portion of a reaction chamber below a horizontal plane which is defined by a surface of a body to be etch treated. The detected intensity is compared to a predetermined threshold level.
摘要:
There are provided a highly rigid propylenic resin which has a melt index MI in the range of 0.1 to 1.2 g/10 minutes as determined at 230.degree. C. under 2.160 kg load and also satisfies a relationship between the MI and the elongational viscosity �Y(Pa.multidot.s)!, said relationship being represented by the expression 2.0.times.10.sup.5 .times.MI.sup.-0.68 .ltoreq.Y.ltoreq.8.0.times.10.sup.5 .times.MI.sup.-0.68 ; and a blow molded article made from the above resin. The propylenic resin has favorable resistance to draw down and can produce a large-sized and lightweight blow molded article excellent in rigidity, dimensional stability and heat resistance.
摘要:
The invention relates to positive electrode for lithium secondary battery which comprises an active material and a conductive material, wherein the active material comprises a lithium-transition metal compound which has a function of being capable of insertion and desorption of lithium ion, the lithium-transition metal compound gives a surface-enhanced Raman spectrum which has a peak at 800-1,000 cm−1, and the conductive material comprises carbon black which has a nitrogen adsorption specific surface area (N2SA) of 70-300 m2/g and an average particle diameter of 10-35 nm, and a lithium secondary battery which employs the same.
摘要:
A semiconductor device is disclosed that comprises a high breakdown voltage MOSFET. The MOSFET includes a source region of a second conductivity type and a drain region of the second conductivity type formed apart from each other in a well region of a first conductivity type, a channel region formed between the source region and the drain region, a gate insulation film formed on the channel region, a LOCOS oxide film having a greater film thickness than the gate insulation film and formed adjacent to the gate insulation film, and a gate electrode formed across the gate insulation film and the LOCOS oxide film.
摘要:
The invention relates to a propylene-based copolymer and its moldings which are transparent and have good ordinary impact resistance, good cold impact resistance, and well-balanced flexibility and blocking resistance. The propylene-based copolymer comprises from 50 to 90% by weight of a propylene-ethylene copolymer [A] of such that (1) its ethylene content (&agr;) falls between 0.2 and 10% by weight, (2) the amount of its fraction (Wp) eluted within the temperature range between (Tp−5)° C. and (Tp+5)° C. is at least 20% by weight, with Tp (°C.) being the peak temperature for essential elution in temperature-programmed fractionation chromatography of the copolymer, and (3) the amount of its fraction (W0) eluted within the temperature range not higher than 0° C. in temperature-programmed fractionation chromatography of the copolymer, and &agr; satisfy a relation of W0≦(3+2&agr;)/4, and from 10 to 50% by weight of a propylene-ethylene copolymer [B] having an ethylene content of from 10 to 25% by weight.
摘要:
There are provided a highly rigid propylenic resin which has a melt index MI in the range of 0.1 to 1.2 g/10 minutes as determined at 230.degree. C. under 2.160 kg load and also satisfies a relationship between the MI and the elongational viscosity �Y(Pa.s)!, said relationship being represented by the expression 2.0.times.10.sup.5 .times.MI.sup.-0.68 .ltoreq.Y.ltoreq.8.0.times.10.sup.5.times. MI.sup.-0.68 ; and a blow molded article made from the above resin. The propylenic resin has favorable resistance to draw down and can produce a large-sized and lightweight blow molded article excellent in rigidity, dimensional stability and heat resistance.
摘要:
The invention relates to a lithium-transition metal compound powder for a positive-electrode material for lithium secondary battery which comprises secondary particles configured of primary particles having two or more compositions and a lithium-transition metal compound having a function of being capable of insertion and release of lithium ions, wherein the powder gives a pore distribution curve having a peak at a pore radium 80 nm or greater but less than 800 nm, and the secondary particles include primary particles of a compound represented by a structural formula including at least one element selected from As, Ge, P, Pb, Sb, Si and Sn, wherein the primary particles of the compound are present at least in an inner part of the secondary particles.
摘要:
A method is provided for forming plural kinds of wells on a single semiconductor substrate with an improved alignment accuracy and obviating the generation of step height between the wells. The method includes forming a selective etching film on the semiconductor substrate, forming openings on the selective etching film overlying a first well forming region and an alignment mark forming region using a first resist film as a mask for defining the first well forming region and the alignment mark forming region, implanting the first well forming region with a dopant of a first conductivity type and removing the first resist film, forming a second resist film to mask at least the first well forming region, having an opening overlying the alignment mark forming region larger than the opening of the selective etching film overlying the same region, and forming the alignment mark by performing an etching process using the second resist film and selective etching film as a mask.
摘要:
A semiconductor device has a configuration in which more than three kinds of wells are formed with small level differences. One kind of well from among the more than three kinds of wells has a surface level higher than other kinds of wells from among the more than three kinds of wells. The one kind of well is formed adjacent to and self-aligned to at least one kind of well from among the other kinds of wells. The other kinds of wells are different in one of a conductivity type, an impurity concentration and a junction depth, and include at least two kinds of wells having the same surface level.