摘要:
A multilayer PTC thermistor 100 includes a ceramic body 10 having a plurality of ceramic layers 12 and internal electrodes 14 between adjacent ceramic layers 12, external electrodes 30 on the end faces 10a, 10b of the ceramic body 10, and a glass layer 20 on the surfaces 10c, 10d of the ceramic body 10, the glass layer 20 containing an oxide of at least one element selected from the group consisting of zinc and bismuth as the major component, wherein the alkali oxide content of the glass layer is no greater than 0.8 mass %.
摘要:
A stacked PTC thermistor 1 comprises a body 4 obtained by alternating lamination of a semiconductor ceramic layer 2 and an internal electrode 3, and a pair of external electrodes 5a, 5b provided at the edge faces 4a, 4b of the body 4 and electrically connected with the internal electrode 3. The semiconductor ceramic layer 2 is composed of a porous sintered compact containing crystal grains of a barium titanate-based compound, and an alkali metal element is preferentially distributed in at least one of the grain boundaries and voids of the sintered compact.
摘要:
A stacked PTC thermistor 1 comprises a body 4 obtained by alternating lamination of a semiconductor ceramic layer 2 and an internal electrode 3, and a pair of external electrodes 5a, 5b provided at the edge faces 4a, 4b of the body 4 and electrically connected with the internal electrode 3. The semiconductor ceramic layer 2 is composed of a porous sintered compact containing crystal grains of a barium titanate-based compound, and an alkali metal element is preferentially distributed in at least one of the grain boundaries and voids of the sintered compact.
摘要:
The present invention is provided with a composite electronic device comprising an inductor element and an ESD protection element formed between two magnetic substrates, wherein the inductor element includes insulation layers made of a resin, and conductor patterns formed on the insulation layers, the ESD protection element includes a base insulation layer, a pair of electrodes arranged via gap formed therebetween on the base insulation layer, and an ESD absorbing layer arranged at least between the electrodes, and the ESD absorbing layer includes a composite material having an insulation inorganic material and a conductive inorganic material discontinuously dispersed in a matrix of the insulation inorganic material.
摘要:
A composite electronic device includes first and second magnetic substrates, and a functional layer sandwiched between these magnetic substrates, and the functional layer is configured by a common-mode filter layer and a ESD protection element layer. An electrostatic capacitance of the ESD protection elements is equal to or lower than 0.35 pF. The common-mode filter layer includes a first spiral conductor formed on an insulation layer, and a second spiral conductor formed on an insulation layer. DC resistance of a common mode filter is equal to or higher than 0.5Ω and equal to or lower than 5Ω, and an electrostatic capacitance of the ESD protection elements is equal to or lower than 0.35 pF. A width W and a length L of the first and second spiral conductors satisfy a relational equation expressed by √(L/W)
摘要:
An object of the present invention is to provide an ESD protection device and the like which offer a reduced discharge starting voltage and improved durability against repeated use. The present invention provides an ESD protection device including a base 2 having an insulating surface 2a, electrodes 3a and 3b disposed on the insulating surface 2a and facing but spaced apart from each other, and a functional layer 4 disposed on at least between the electrodes 3a and 3b, wherein the gap distance ΔG between the electrodes 3a and 3b ranges from 0.5 μm to 10 and the thickness ΔT of each of the electrodes 3a and 3b meets a relationship of ΔG/ΔT=1 to 30.
摘要翻译:本发明的目的是提供一种提供降低的放电起始电压并提高耐反复使用的耐久性的ESD保护装置等。 本发明提供一种ESD保护装置,其包括具有绝缘表面2a的底座2,设置在绝缘表面2a上并面对并彼此间隔开的电极3a和3b以及设置在至少在电极3a之间的功能层4 和3b,其中电极3a和3b之间的间隙距离&Dgr; G的范围为0.5μm至10,并且每个电极3a和3b的厚度&Dgr; T满足&Dgr; G /&Dgr; T = 1至 30。
摘要:
A sintered body for a magnetic head slider, which can reduce differences in level of an air bearing surface while yielding a high strength, a magnetic head slider using the same, and a method of manufacturing a sintered body for a magnetic head slider are provided. The sintered body of the present invention is a sintered body comprising alumina crystal grains and a thin film containing carbon provided at a grain boundary between the alumina crystal grains, whereas the alumina crystal grains have an average particle size of 0.05 to 0.5 μm.
摘要:
The magnetic head slider material of the present invention is a magnetic head slider material made of a sintered body containing alumina, titanium carbide, and carbon; wherein a titanium carbide crystal grain has an average crystal grain size greater than that of an alumina crystal grain in the sintered body.
摘要:
A spacer for a flat panel display having a coefficient of thermal expansion equal or close to that of a glass and having a strength and a predetermined conductivity is provided. The spacer for a flat panel display includes a sintered body containing MgAl2O4 preferably as a main phase. The sintered body preferably further contains MgO, and if it contains MgAl2O4 and MgO, a peak strength on a MgO (200) surface is preferably 0.5 to 50 when a peak strength on a MgAl2O4 (311) surface is 100 as measured by X-ray diffraction. The spacer is placed between a back plate having a cathode structure and a face plate placed with a predetermined spacing between itself and the back plate and having fluorescent pixel areas, and plays a role of maintaining the spacing.
摘要翻译:提供了具有与玻璃的热膨胀系数相当或接近的具有强度和预定电导率的平板显示器的间隔件。 用于平板显示器的间隔件包括优选地作为主相的含MgAl 2 O 4的烧结体。 烧结体优选还含有MgO,如果含有MgAl 2 O 4 O 4和MgO,则当MgO(200)表面的峰强度优选为0.5〜50,当a MgAl 2 O 4(311)表面的峰强度通过X射线衍射测得为100。 将间隔物置于具有阴极结构的背板和以其间隔着预定间隔放置并具有荧光像素区域的面板之间,起到维持间隔的作用。
摘要:
An ESD protection device that has low capacitance, excellent discharge characteristics, and improved heat resistance and weather resistance is provided. A functional layer 31, which is a composite having a conductive inorganic material 33 discretely dispersed in a matrix of an insulating inorganic material 32, is disposed between electrodes 21 and 22 disposed on an insulating substrate 11 and facing but spaced apart from each other.