摘要:
A diesel engine characterized in that a part of fuel is reformed into a mixture containing decomposition and oxidation products in a system separate from that of a fuel injection in which a fuel is injected into a compressed air introduced into the cylinders under a high pressure and ignited, and said mixture is introduced into said cylinders during the suction stroke of the engine, and the method for improving the combustion efficiency thereof.
摘要:
A method for manufacturing an electronic parts device allowing for easy overmolding and underfilling without requiring a jig for preventing leakage of the melted resin composition, and a resin composition sheet for electronic parts encapsulation used therein.
摘要:
A silicon wafer produced from a silicon single crystal ingot grown by Czochralski process is subjected to rapid heating/cooling thermal process at a maximum temperature (T1) of 1300° C. or more, but less than 1380° C. in an oxidizing gas atmosphere having an oxygen partial pressure of 20% or more, but less than 100%. The silicon wafer according to the invention has, in a defect-free region (DZ layer) including at least a device active region of the silicon wafer, a high oxygen concentration region having a concentration of oxygen solid solution of 0.7×1018 atoms/cm3 or more and at the same time, the defect-free region contains interstitial silicon in supersaturated state.
摘要翻译:将通过切克劳斯基法生长的硅单晶锭制成的硅晶片在氧化气体气氛中在1300℃以上但小于1380℃的最高温度(T1)下进行快速加热/冷却热处理 氧分压为20%以上但小于100%。 根据本发明的硅晶片在至少包括硅晶片的器件有源区的无缺陷区(DZ层)中具有0.7×10 18原子/ cm 3的氧固溶体浓度的高氧浓度区域 以上,同时无缺陷区域含有过饱和状态的间隙硅。
摘要:
A method for manufacturing a field effect transistor, includes: forming a mask of an insulating film on a semiconductor layer containing Si formed on a semiconductor substrate; forming the semiconductor layer into a mesa structure by performing etching with the use of the mask, the mesa structure extending in a direction parallel to an upper face of the semiconductor substrate; narrowing a distance between two sidewalls of the mesa structure and flattening the sidewalls by performing a heat treatment in a hydrogen atmosphere, the two sidewalls extending in the direction and facing each other; forming a gate insulating film covering the mesa structure having the sidewalls flattened; forming a gate electrode covering the gate insulating film; and forming source and drain regions at portions of the mesa structure, the portions being located on two sides of the gate electrode.
摘要:
An epoxy resin composition for semiconductor encapsulation, which comprises: (A) an epoxy resin having at least two epoxy groups in a molecule thereof; (B) a compound having at least two phenolic hydroxyl groups in a molecule thereof; and (C) particles of a compound represented by general formula (1), the particles having a maximum particle diameter of not greater than 30 μm and a standard deviation of not greater than 5 μm, the particles being dispersed in the epoxy resin composition: wherein X1 to X5, which may be the same or different, are each a hydrogen atom, an alkyl group having 1 to 9 carbon atoms, or a fluorine atom. The epoxy resin composition is an encapsulation material excellent in pot life, fluidity and curability, and has a lower chloride ion content. The epoxy resin composition provides a highly reliable semiconductor device excellent in moisture resistant reliability.
摘要:
A method for manufacturing a field effect transistor, includes: forming a mask of an insulating film on a semiconductor layer containing Si formed on a semiconductor substrate; forming the semiconductor layer into a mesa structure by performing etching with the use of the mask, the mesa structure extending in a direction parallel to an upper face of the semiconductor substrate; narrowing a distance between two sidewalls of the mesa structure and flattening the sidewalls by performing a heat treatment in a hydrogen atmosphere, the two sidewalls extending in the direction and facing each other; forming a gate insulating film covering the mesa structure having the sidewalls flattened; forming a gate electrode covering the gate insulating film; and forming source and drain regions at portions of the mesa structure, the portions being located on two sides of the gate electrode.
摘要:
In a method of heat treating a wafer obtained by slicing a silicon single crystal ingot manufactured by the Czochralski method, a rapid heating/cooling heat treatment is carried out by setting a holding time at an ultimate temperature of 1200° C. or more and a melting point of silicon or less to be equal to or longer than one second and to be equal to or shorter than 60 seconds in a mixed gas atmosphere containing oxygen having an oxygen partial pressure of 1.0% or more and 20% or less and argon, and an oxide film having a thickness of 9.1 nm or less or 24.3 nm or more is thus formed on a surface of the silicon wafer.
摘要:
An epoxy resin composition for semiconductor encapsulation, which comprises: (A) an epoxy resin having at least two epoxy groups in a molecule thereof; (B) a compound having at least two phenolic hydroxyl groups in a molecule thereof; and (C) particles of a compound represented by general formula (1), the particles having a maximum particle diameter of not greater than 30 μm and a standard deviation of not greater than 5 μm, the particles being dispersed in the epoxy resin composition: wherein X1 to X5, which may be the same or different, are each a hydrogen atom, an alkyl group having 1 to 9 carbon atoms, or a fluorine atom. The epoxy resin composition is an encapsulation material excellent in pot life, fluidity and curability, and has a lower chloride ion content. The epoxy resin composition provides a highly reliable semiconductor device excellent in moisture resistant reliability.
摘要:
A semiconductor substrate whose surface roughness is reduced by optimizing an inclination (off angle) with respect to a {110} surface of the semiconductor substrate surface and a manufacturing method thereof are provided. The surface of the semiconductor substrate has the inclination (off angle) of 0 degree or more and 0.12 degrees or less, or 5 degrees or more and 11 degrees or less, preferably 6 degrees or more and 9 degrees or less with respect to the {110} surface. The manufacturing method of a semiconductor substrate has a process in which a semiconductor single crystal ingot is sliced at an inclination (off angle) of 5 degrees or more and 11 degrees or less, preferably 6 degrees or more and 9 degrees or less with respect to the {110} surface.
摘要:
A low-staining adhesive sheet provided with an adhesive layer containing as the main component a pressure-sensitive adhesive polymer on a base film, wherein the pressure-sensitive adhesive polymer is substantially free from oligomeric low-molecular weight matters; and a method for removing a resist material by using this low-staining adhesive sheet. This low-staining adhesive sheet gives no organic staining matters remaining on the surface of article (for example, substrate) to be used as an adherend and is useful in removing a resist material and foreign matters, and re-peeling surface-protectors, masking materials, and other materials.