摘要:
A semiconductor element mounting board includes: a board having surfaces; a semiconductor element provided at a side of one of the surfaces of the board; a bonding agent layer through which the board and the semiconductor element are bonded together, the bonding agent layer having a storage modulus at 25° C. of 5 to 1,000 MPa; a first layer into which the semiconductor element is embedded, the first layer provided on the one surface of the board; a second layer provided on the other surface of the board, the second layer being constituted from the same material as that of the first layer, the constituent material of the second layer having the same composition ratio as that of the constituent material of the first layer; and surface layers provided on the first and second layers, respectively, each of the surface layers being formed from at least a single layer. In the semiconductor element mounting board, a coefficient of thermal expansion of each surface layer in an inplane direction thereof measured based on JIS C 6481 at a temperature of 20° C. to a glass-transition temperature Tga° C., which is measured based on JIS C 6481, is 40 ppm/° C. or lower.
摘要翻译:半导体元件安装板包括:具有表面的板; 设置在所述板的一个表面的一侧的半导体元件; 将基板和半导体元件结合在一起的接合剂层,25℃下的储能模量为5〜1000MPa的接合剂层; 第一层,半导体元件被嵌入其中,第一层设置在板的一个表面上; 设置在所述板的另一个表面上的第二层,所述第二层由与所述第一层相同的材料构成,所述第二层的构成材料具有与所述第一层的构成材料相同的组成比 ; 以及分别设置在第一和第二层上的表面层,每个表面层由至少单层形成。 在半导体元件安装基板中,基于JIS C 6481在20℃的温度下测定各面层的面内方向的热膨胀系数至玻璃化转变温度Tga°C 在JIS C 6481中为40ppm /℃以下。
摘要:
Within a semiconductor laser device, mounting a semiconductor laser element array of multi-beam structure on a sub-mount, the semiconductor laser element array of multi-beam structure comprises one piece of a semiconductor substrate 11; a common electrode 1, which is formed on a first surface of the semiconductor substrate; a semiconductor layer 2, which is formed on the other surface of the semiconductor substrate, and has a plural number of light emitting portions 7 within an inside thereof; a plural number of anode electrodes 3 of a second conductivity type, which are formed above the plural number of light emitting portions, respectively; and a supporting portion 25, which is provided outside a region of forming the light emitting portions, wherein on one surface of the sub-mount is connected an electrode 3 of the semiconductor laser element array through a solder 4, and that solder 4 is formed to cover a supporting portion and an electrode neighboring thereto, and further on the electrode 3 is formed a groove portion 9 between the supporting portion 25 neighboring and the light emitting portions 7.
摘要:
Disclosed are a composite body, a method for producing the composite body and a semiconductor device, the composite body comprising a resin layer and a fine wiring and/or via hole being formed in the resin layer, having high adhesion and high reliability, and being capable of high frequencies. Also disclosed are a resin composition and a resin sheet, both of which can provide such a composite body.The composite body comprises a resin layer and an electroconductive layer, wherein a groove having a maximum width of 1 μm or more and 10 μm or less is on a surface of the resin layer; the electroconductive layer is inside the groove; and a surface of the resin layer being in contact with the electroconductive layer has an arithmetic average roughness (Ra) of 0.05 μm or more and 0.45 μm or less, and/or wherein the resin layer has a via hole having a diameter of 1 μm or more and 25 μm or less; the electroconductive layer is inside the via hole; and a surface of the resin layer of the inside of the via hole has an arithmetic average roughness (Ra) of 0.05 μm or more and 0.45 μm or less. The resin composition comprises an inorganic filler and a thermosetting resin, wherein the inorganic filler contains coarse particles having a diameter of more than 2 μm in an amount of 500 ppm or less. The resin sheet comprises a resin layer and a substrate, wherein the resin layer is on the substrate and comprises the resin composition.
摘要:
A refrigeration apparatus (20) includes a refrigerant circuit (10) in which refrigerant is circulated by a compressor (30) to perform a refrigeration cycle. The compressor (30) includes a fluid machine (82) for compressing refrigerant; and an electric motor (85) for driving the fluid machine (82). Refrigerant oil having volume resistivity of equal to or greater than 1010 Ω·m at 20° C. is used for the compressor (30).
摘要:
A file storage apparatus capable of restoring integrity of file management information even when a power supply abnormality occurs without lowering the write speed. When updating meta data stored in an HDD, log data for reconstructing the meta data after update from the meta data before update is written into a non-volatile RAM (NVRAM), then, after this writing is completed, the update is executed. Accordingly, even when the update use meta data temporarily stored in a cache memory is partially lost due to trouble such as a power supply abnormality and when update of the meta data of a hard disk is incomplete, the log data corresponding to the meta data for the update is held in the NVRAM, so it becomes possible to restore the integrity of the meta data on the hard disk by using this log data.
摘要:
By giving a shoulder portion height of at least 100 mm in growing silicon single crystals having a diameter of 450 mm (weighing up to 1100 kg) by the CZ method, it becomes possible to inhibit the occurrence of dislocations in the shoulder formation step to thereby achieve a yield improvement and increase productivity. Furthermore, when this method is applied under application of a transverse magnetic field with a predetermined intensity, the occurrence of dislocations can be further inhibited and, accordingly, defect-free silicon single crystals suited for wafer manufacture can be grown with high production efficiency. Thus, the method is best suited for the production of large-diameter silicon single crystals having a diameter of 450 mm, which are applied in the manufacture of semiconductor devices.
摘要:
A manufacturing method of a nonvolatile semiconductor memory includes steps (a) to (d). The (a) is a step of laminating a 2nd insulating film, a gate film and a hard mask film which cover a 1st gate electrode of a 1st memory cell transistor formed on a 1st region of a semiconductor substrate through a 1st insulating layer and a 3rd gate electrode of a 2nd memory cell transistor formed on a 2nd region through the 1st insulating layer. The (b) is a step of forming a 1st hard mask layer which covers a bottom portion and a side surface of a concave portion formed using the gate film between the 1st gate electrode and the 3rd gate electrode by etching the hard mask film. The (c) is a step of forming a 2nd gate electrode of the 1st memory cell transistor on the 1st region, a 4th gate electrode of the 2nd memory cell transistor on the 2nd region, and a connection layer which connects the 2nd gate electrode and the 4th gate electrode under the 1st hard mask layer by etching the gate film. The (d) is a step of exposing upper portions of the 1st gate electrode, the 3rd gate electrode and the connection layer by etching back the 2nd insulating film and the 1st hard mask layer covering a bottom portion of the concave portion to remain the 1st hard mask layer such that the 1st hard mask layer covers side surfaces of the concave portion.
摘要:
The invention relates to a low-cost transfer bump sheet which is capable of transferring copper-cored solder bumps with high reliability of bonding to a semiconductor chip and which is capable of transferring bumps of various structures. The invention also relates to a low-cost semiconductor flip chip in which copper-cored solder bumps with high reliability of bonding are mounted on a semiconductor chip through the use of the transfer bump sheet. In the transfer bump sheet, metal posts of two or more layers are formed on a base sheet. The invention also relates to a method of manufacturing this semiconductor flip chip, which comprises the steps of forming the base sheet on a metal foil, forming a plating mask on the metal foil, forming a first solder layer (solder coating) on the metal foil by electrolytic plating or electroless plating, removing the plating mask, and forming a metal layer (metal core) of metal posts by the etching of the metal foil through the use of the formed first solder layer (solder coating) as an etching mask.
摘要:
There is provided a storage method of a semiconductor storage apparatus provided with a source/drain area formed in a semiconductor substrate, a floating gate formed on a top layer of the area via a gate insulating film, and a control gate formed on the floating gate via an interlayer insulating film, the method comprising steps of: applying a predetermined positive voltage to a bit line connected to the drain area and a word line connected to the control gate, injecting an electron to the floating gate, and writing data to a selected memory cell; applying a predetermined negative voltage to a gate line, applying the predetermined positive voltage to a common source line connected to the semiconductor substrate or the source area, discharging the electron accumulated in the floating gate of the selected memory cell, and performing data erasing; and after the data erasing, applying the predetermined positive voltage necessary for injecting the electron to the floating gate from a channel area in the vicinity of the source area to the common source line, and performing write-back of the memory cell erased excessively.
摘要:
A semiconductor device includes a field oxide film, a plurality of word lines, an insulating interlayer film, a plurality of contact holes, a plurality of protective diffusion layers, a plurality of common contact holes, and a plurality of metal plugs. The field oxide film is formed on a silicon substrate having one conductivity type. The word lines are formed by patterning on the field oxide film. The insulating interlayer film is formed on the field oxide film to cover the word lines. The contact holes are formed in the field oxide film to be self-aligned with the word lines. The protective diffusion layers have an opposite conductivity type and are formed on a surface of the semiconductor substrate to correspond to the contact holes. The common contact holes are formed in the insulating interlayer film to extend across the word lines and the protective diffusion layers. The common contact holes are formed at a depth to reach the protective diffusion layers while partly exposing the word lines. The metal plugs fill the common contact holes to electrically connect the protective diffusion layers and the word lines with each other. A method of manufacturing a semiconductor device is also disclosed.