摘要:
A storage control apparatus includes a controller configured to control to convert an access to logical volume into an access to associated RAID group in response to an access to the corresponding virtual volume on the basis of access conversion information, monitor frequency of access to each of logical volumes, select a logical volume on the basis of the monitored frequency of access, move data stored in a RAID group corresponding to the selected logical volume to a different RAID group corresponding to a logical volume to be a data shift destination, and update the access conversion information to convert access to the RAID group corresponding to the selected logical volume into access to the different RAID group.
摘要:
Disclosed is a toner for electrophotography containing at least a binder resin. This toner for electrophotography is characterized in that (a) the tetrahydrofuran (THF) soluble content in the toner has a first peak in the molecular weight region of not less than 2,000 but less than 5,000 and a second peak in the molecular weight region of not less than 100,000 but less than 200,000 in the chromatogram obtained by gel permeation chromatography (GPC); (b) the binder resin contains at least a carboxyl group-containing vinyl resin (C) and a glycidyl group-containing vinyl resin (E); and (c) the mass ratio of the styrene monomer to the acrylic monomer in the binder resin, namely (S/A), is not less than 4.6 but less than 8.5.
摘要:
Provided is a binder resin for color toners which comprises at least a carboxyl group-containing vinyl resin (C), a glycidyl group-containing vinyl resin (E) and a reaction product thereof, wherein the storage modulus G′ at 160 degrees centigrade is not less than 20 and less than 800 Pa measured at a frequency of 6.28 rad/sec, the tetrahydrofuran (THF) soluble portion in the binder resin has a main peak in the molecular weight region of not less than 20,000 and less than 40,000 in the molecular weight distribution measured by gel permeation chromatography (GPC), and the binder resin contains at least one of releasing agents having a melting point of not lower than 60 and not higher than 120 degrees centigrade in an amount of not less than 3.5 and not more than 12 mass % based on 100 mass % of the total amount of the carboxyl group-containing vinyl resin (C), the glycidyl group-containing vinyl resin (E) and a reaction product thereof.
摘要:
A system for manufacturing an electronic device having a processing unit which includes a timer that processes a plurality of lots each having a plurality of work pieces and measuring in units of lots a processing time of the work pieces constituting the respective lots, an environmental information measurement module that measures environmental information corresponding to the processing time of the work pieces measured in units of lots, and a communication module for transmission and reception, and a work information management unit having a storage module which is provided to correspond to each lot, communicates with the communication module of the processing unit, and receives and stores the processing time and the environmental information of the work pieces of the lot.
摘要:
A microchemical system is disclosed that is capable of controlling the flow of a sample solution flowing through a channel in a microchip. In the microchemical system 1, a microchip 7 has therein a T-shaped channel 4 comprised of a main channel 2, a sub-channel 3, and a merging portion 4 where the main channel 2 and the sub-channel 3 merge together. Panel heaters 8 and 9 are installed in a position such as to be able to heat the interior of the sub-channel 3. The sub-channel 3 and the merging portion are subjected to hydrophobic modification treatment. Water is supplied into the main channel 2, and air is supplied into the sub-channel 3.
摘要:
A semiconductor device connecting structure is provided for connecting a semiconductor IC to a substrate. A bonding layer is placed between the substrate and the semiconductor IC to accomplish adhesion therebetween. Sufficient heat and pressure are applied to the bonding layer to create spaces therein which deform during relative movement between the semiconductor IC and substrate thereby maintaining consistent electrical contact between the semiconductor contact bumps and electrodes on the substrate.
摘要:
Conductive connection can be effected between electrodes arranged at a minute pitch. When joining an IC chip (36), which is a semiconductor device, to an external substrate (32a), conductive paste (41) is sprayed in particles to terminals (37) on the external substrate (32a) and the conductive paste (41) is put on the electrodes (37). Next, positioning of pads (38) of the IC chip (36) is effected with respect to the conductive paste (41) and, in this condition, the IC chip (36) and the substrate (32a) are glued to each other. Since the conductive paste (41) is sprayed in particles and printed on the electrodes (37), it is possible to correctly put the conductive paste (41) thereon even when the electrodes (37) are arranged at a minute pitch. Further, since conduction is effected between the pads (38) and the electrodes (37) through the conductive paste (41), the conduction state is stable. This conductive connection method is suitably applicable to the connection between substrate side electrodes formed on a substrate and element side electrodes formed on an electronic element mounted on the substrate in a variety of devices such as liquid crystal devices and electronic apparatuses.
摘要:
A conductive adhesive which can withstand exposure to high temperature during a solder reflow process comprises an adhesive resin and a plurality of conductive particles mixed in the adhesive resin. The conductive particles each include a core formed of a synthetic resin and a conductive material coated around the core. The cores are each formed of a material having a thermal deformation temperature higher than that of the adhesive resin, and more preferably formed of a material having a thermal deformation temperature (18.6 kg/cm2) higher than 120° C. as measured according to the measuring method defined in the ASTM standard D648, and still more preferably formed of a material selected from the group consisting of polyphenylene oxide, polysulfone, polycarbonate, polyacetal, and polyethylene terephthalate.
摘要翻译:在回流焊接过程中可承受高温暴露的导电粘合剂包括粘合树脂和粘合树脂中混合的多个导电颗粒。 导电颗粒各自包括由合成树脂形成的芯和围绕芯部涂覆的导电材料。 芯部由热变形温度高于粘合剂树脂的材料形成,更优选由热变形温度(18.6kg / cm 2)高于120℃的材料形成,如根据 测定方法在ASTM标准D648中定义,并且还更优选由选自聚苯醚,聚砜,聚碳酸酯,聚缩醛和聚对苯二甲酸乙二醇酯的材料形成。
摘要:
A mounting structure of a semiconductor chip including a semiconductor chip 6 with a plurality of bumps 16, and a circuit substrate 3 with a plurality of output wires 11 and input terminals 12. In the press-bonding process, ACF 4 is used to join the semiconductor chip 6 and the circuit substrate 3 together so as to allow electrical conduction between the bumps 16 and the land parts of, for example, the output wires 11. A plurality of transfixion holes 10 are formed so as to be spread out in an area of the circuit board 3 surrounded by the land parts of the wires 11 and the terminals 12, and the excess ACF 4, present during the press-bonding, is allowed to escape through the transfixion holes 10, thereby preventing generation of a large internal stress in the ACF 4. This allows the IC 6 to be joined more reliably.
摘要:
An IC chip includes a built-in semiconductor and a plurality of bumps exposed to the exterior and provided on a surface, the bumps being pressed and bonded to a substrate or the like using an ACF (Aniosotropic Conductive Film). With respect to at least one of the bumps among the plurality of bumps, the height H of the outer portion is determined to be larger than the height H of the inner portion. When the ACF is pressed by the IC chip, conductive particles in the ACF are prevented from outwardly escaping from the bump by the high outer portion. Therefore, a greater number of conductive particles can be trapped around the bump.