摘要:
The method for producing a bulk silica porous material is presented. The obtained material has a large crystal size serving to reduce light scattering, and uniform and adjustable pore size. This can be utilized for optical and electronic functional materials. The method comprises the steps of:forming a silica/surfactant composite by mixing starting materials containing an alkoxysilane, water and a surfactant and allowing to the starting materials to react;maturing said silica/surfactant composite by allowing the same to stand in a closed container to effect the development of a silica network structure and the formation of porous structure in said composite;drying said matured silica/surfactant composite for removing the solvent and for condensation of said matured silica/surfactant composite; and,sintering said condensed silica/surfactant composite to remove the surfactant to obtain a silica porous material.
摘要:
A region where a plating film constituting an external electrode is formed can be accurately controlled in an electronic component in which the external electrode is formed by directly plating a particular region in a surface of a component body. In a component body, a bump is provided in a position in which a region where an external electrode should be formed is partitioned. In a plating process, growth of the plating film constituting the external electrode is substantially stopped or delayed in the bump. As a result, a termination point of the growth of the plating film constituting the external electrode can be accurately controlled in the position of the bump.
摘要:
A laminated electronic component includes outer terminal electrodes including lower plating films including metal particles having an average size of 0.5 μm or less, the lower plating films being formed by directly plating an outer surface of an electronic component body such that the lower plating films are electrically connected to exposed portions of inner conductors. The outer terminal electrodes may further include upper plating films formed on the lower plating films, the upper plating films being defined by one or more layers. Metal particles defining the upper plating films may have an average size of 0.5 μm or less. The metal particles defining the lower plating films may be Cu particles.
摘要:
When an external terminal electrode of a ceramic electronic component such as a laminated ceramic capacitor is formed by plating, plating growth may be also caused even in an undesired location. The ceramic surface provided by a component main body is configured to include a high plating growth region of, for example, a barium titanate based ceramic, which exhibits relatively high plating growth, and a low plating growth region of, for example, a calcium zirconate based ceramic, which exhibits relatively low plating growth. The plating film constituting a first layer to define a base for an external terminal electrode is formed in such a way that the growth of a plated deposit deposited with conductive surfaces provided by exposed ends of internal electrodes as starting points is limited so as not to cross over a boundary between the high plating growth region and the low plating growth region toward the low plating growth region.
摘要:
A multilayer ceramic electronic component includes a laminate including a stack of a plurality of ceramic layers and a plurality of internal electrodes extending along interfaces between the ceramic layers, and a plurality of external electrodes electrically connecting the internal electrodes exposed at surfaces of the laminate. Each external electrode includes a plating layer at least at the portion directly connected to the internal electrodes. The plating layer has a compressive film stress of about 100 MPa or less or a tensile film stress of about 100 MPa or less.
摘要:
Various embodiments are provided to reduce a processing time taken when plural bit lengths each assigned to plural strings are converted into plural codes. In one exemplary embodiment, in response to input of the plurality of bit lengths, a number of strings assigned each of the bit lengths, a bit length assigned to each of the strings, and a sequence number of each string in a group of strings assigned each of the bit lengths are recorded. A plurality of base codes are generated on the basis of the numbers of the strings recorded by the recording unit, the base codes each being a code used as a base for codes having the same one of the bit lengths. A plurality of codes is generated by performing in parallel a plurality of processes respectively for the plurality of strings.
摘要:
A method for manufacturing a multilayer electronic component includes a step of preparing a laminate which includes a plurality of stacked insulator layers and a plurality of internal electrodes extending along the interfaces between the insulator layers, and in which an end of each of the plurality of internal electrodes is exposed at a predetermined surface corresponding to one of the first and second end surfaces; a step of forming external electrodes on the predetermined surfaces; and a step of forming thick-film edge electrodes at edge portions. The step of forming external electrodes includes a step of attaching a plurality of conductive particles having a particle size of about 1 μm or more to the predetermined surfaces of the laminate, and a step of performing plating directly on the predetermined surfaces to which the conductive particles are attached.
摘要:
A multilayer electronic device includes a laminate and an external electrode that is formed on an end surface of the laminate after a plurality of conductive particles having a particle diameter of about 1 μm or more is adhered to the end surface of the laminate, for example, by a sandblast method or a brush polishing method. The external electrode is defined by a plating film that is formed by electroplating or electroless plating.
摘要:
A lock-up mechanism for a torque converter comprising a lock-up clutch secured thereto with a friction liner having a friction surface, and a front cover having an engaging surface adapted to be engaged with the friction surface, is wherein either the friction surface or the engaging surface is formed therein with a substantially annular circumferential groove.
摘要:
There is provided a semiconductor circuit including three or more nodes at least including one input node and one output node, plural paths which are connected between the three or more nodes and whose signal propagation directions between the nodes are regulated, a signal propagation time regulator for regulating a signal propagation time of each of the paths, an input unit for inputting a predetermined input signal to the input node, and a detector for detecting a time required for the input signal to propagate through the paths and arrive at the output node.