摘要:
A silicon single crystal wafer for a particle monitor is presented, which wafer has an extremely small amount in the surface density of light point defects and is capable of still maintaining a small surface density even after repeating the SC-1. The wafer is prepared by slicing a silicon single crystal ingot including an area in which crystal originated particles are generated, and the surface density of particles having a size of not less than 0.12 mum is not more than 15 counts/cm2 after repeating the SC-1. More preferably, a silicon single crystal wafer having a nitrogen concentration of 1×1013 1×1015 atoms/cm3 provides a surface density of not more than 1 counts/cm2 for the particles having a diameter of not less than 0.12 mum even after repeating the SC-1. Hence, a high quality wafer optimally used for a particle monitor can be obtained and a very small number of defects in the wafer make it possible to produce devices.
摘要翻译:提出了一种用于粒子监测器的硅单晶晶片,该晶片在光点缺陷的表面密度中具有非常小的量,并且即使在重复SC-1之后也能够保持较小的表面密度。 通过对包含产生结晶起始粒子的区域的硅单晶锭进行切片来制作晶片,并且在重复SC-层之后,尺寸不小于0.12μm的颗粒的表面密度不超过15个计数/ cm 2, 1。 更优选的是,氮浓度为1×1013×1015原子/ cm3的硅单晶晶片,即使重复使用了直径不小于0.12μm的颗粒,表面密度也不超过1个/ cm 2 SC-1。 因此,可以获得最佳地用于粒子监测器的高品质晶片,并且晶片中的非常少量的缺陷使得可以生产器件。
摘要:
A silicon single crystal wafer for a particle monitor is presented, which wafer has an extremely small amount in the surface density of light point defects and is capable of still maintaining a small surface density even after repeating the SC-1. The wafer is prepared by slicing a silicon single crystal ingot including an area in which crystal originated particles are generated, and the surface density of particles having a size of not less than 0.12 mum is not more than 15 counts/cm2 after repeating the SC-1. More preferably, a silicon single crystal wafer having a nitrogen concentration of 1×1013 1×1015 atoms/cm3 provides a surface density of not more than 1 counts/cm2 for the particles having a diameter of not less than 0.12 mum even after repeating the SC-1. Hence, a high quality wafer optimally used for a particle monitor can be obtained and a very small number of defects in the wafer make it possible to produce devices.
摘要翻译:提出了一种用于粒子监测器的硅单晶晶片,该晶片在光点缺陷的表面密度中具有非常小的量,并且即使在重复SC-1之后也能够保持较小的表面密度。 通过对包括产生结晶起始粒子的区域的硅单晶锭进行切片来制作晶片,并且尺寸不小于0.12μm的颗粒的表面密度不超过15个/ cm 2, / SUP>重复SC-1。 更优选地,氮浓度为1×10 13/15 15原子/ cm 3的硅单晶晶片提供不超过1×10 15原子/ cm 3的表面密度 即使在重复SC-1之后,直径不小于0.12μm的颗粒的1个计数/ cm 2。 因此,可以获得最佳地用于粒子监测器的高品质晶片,并且晶片中的非常少量的缺陷使得可以生产器件。
摘要:
A method of producing high-quality and large-diameter single crystals by the Czochralski method is disclosed which can provide wafers with a minimized number of such grown-in defects as dislocation clusters and laser scattering tomography defects. Specifically, it is a method of producing silicon single crystals which comprises carrying out the crystal pulling while maintaining the solid-melt interface during pulling in the shape of an upward convex with the central portion of the interface being higher by at least 5 mm than the peripheral region thereof and while applying a magnetic field, and optionally in addition to the above, while maintaining the temperature gradient in the direction of axis of pulling in the peripheral region at a level lower than that in the central portion in the range of from the melting point to 1,200° C. In this case, it is desirable that the portion of the single crystal surface lying at least 50 mm above the melt surface be shielded from direct radiant heat from the heater and/or crucible wall, that a horizontal magnetic field of 0.08 to 0.3 T be applied in parallel with the melt surface or a cusped magnetic field showing an intensity of 0.02 to 0.07 T at a crucible wall site on the melt surface be applied and that the crucible be rotated at a speed of not more than 5 min−1 and the single crystal at a speed of not less than 13 min−1.
摘要:
A semiconductor device including a logic circuit capable of decreasing a leakage current occurred during a standby state is provided. The semiconductor device includes a power supply portion for supplying a first operation voltage or a second operation voltage smaller than the first operation voltage; a P-type low-threshold transistor Tp for receiving the first or the second operation voltage from the power supply portion; and a N-type transistor Tn connected between the transistor Tp and a base potential. The transistors Tp, Tn construct a logic circuit. The power supply portion supplies the first operation voltage to the source of the transistor Tp in the enable state, and supplies the second operation voltage in a standby state. The second operation voltage is set so that voltage amplitude between gate and source of each transistor Tp, Tn is larger than the threshold value of the transistors Tp, Tn.
摘要:
The amorphous silicon film formation method includes forming a seed layer on the surface of a base by heating the base and flowing aminosilane-based gas onto the heated base; and forming an amorphous silicon film on the seed layer by heating the base, supplying silane-based gas containing no amino group onto the seed layer on the surface of the heated base, and thermally decomposing the silane-based gas containing no amino group.
摘要:
A method of forming a silicon nitride film on the surface of an object to be processed, the method including forming a seed layer functioning as a seed of the silicon nitride film on the surface of the object to be processed by using at least an aminosilane-based gas, prior to forming the silicon nitride film on the surface of the object to be processed.
摘要:
In vehicle air-conditioning devices including a refrigerant circuit having a compressor, an outdoor heat exchanger, an expansion device, and an indoor heat exchanger that are connected by refrigerant pipes to form a refrigeration cycle; an indoor air-sending device that supplies air to the indoor heat exchanger; and an outdoor air-sending device that supplies air to the outdoor heat exchanger, the refrigerant circuit is installed under the floor of a vehicle and uses carbon dioxide as the refrigerant.
摘要:
A semiconductor device including a logic circuit capable of decreasing a leakage current occurred during a standby state is provided. The semiconductor device includes a power supply portion for supplying a first operation voltage or a second operation voltage smaller than the first operation voltage; a P-type low-threshold transistor Tp for receiving the first or the second operation voltage from the power supply portion; and a N-type transistor Tn connected between the transistor Tp and a base potential. The transistors Tp, Tn construct a logic circuit. The power supply portion supplies the first operation voltage to the source of the transistor Tp in the enable state, and supplies the second operation voltage in a standby state. The second operation voltage is set so that voltage amplitude between gate and source of each transistor Tp, Tn is larger than the threshold value of the transistors Tp, Tn.
摘要:
A discharger includes: a discharge electrode member that is placed opposedly to a member to be charged; an opposed electrode member that is placed opposedly to the discharge electrode member; and a power source circuit that applies a discharge voltage for generating a discharge between the discharge electrode member and the opposed electrode member, and the electrode member having a surface that includes a covered layer covered by a covering material is formed on a surface opposed thereto, and the covering material containing a carbon atom, or a carbon atom and another atom or other plural atoms as a main component, and having an SP3 structure by a carbon atom.
摘要:
A logical-group creating unit creates a logical group from a cell included in a selected range of a logical drawing that is specified in a logical page. A logical-group extracting unit extracts a same/similar logical group by determining whether logical drawings of created logical groups are same or similar to each other. A pattern creating unit creates an implementation pattern of a logical group included in extracted same/similar logical group.