摘要:
A method of producing a semiconductor wafer suited to form types of devices such as HBT and FET on a single semiconductor wafer is provided. The method, by repeating steps including introducing, into a reaction chamber for forming a semiconductor by crystal growth, a first-impurity gas containing an element or a compound containing a first impurity atom as a constituent, thereby producing semiconductor wafers, includes, after introducing the first-impurity gas: taking out a produced semiconductor wafer; disposing a first semiconductor in the reaction chamber; introducing, into the reaction chamber, a second-impurity gas containing an element or a compound containing, as a constituent, a second impurity atom exhibiting a conduction type opposite to the conduction type of the first impurity atom within the first semiconductor; heating the first semiconductor in an atmosphere of the second-impurity gas; and forming a second semiconductor on the heated first semiconductor by crystal growth.
摘要:
A semiconductor device is provided with a power supply circuit having a function to generate a power supply voltage from a wireless signal and an A/D converter circuit having a function to detect the strength of the wireless signal by an A/D conversion of a voltage generated from the wireless signal. This enables to provide a semiconductor device which does not require replacement of batteries, has few limitations on its physical shape and mass, and has a function to detect a physical position. By formation of the semiconductor device with use of a thin film transistor formed over a plastic substrate, a lightweight semiconductor device, which has flexibility in physical shape and a function to detect a physical location, can be provided at low cost.
摘要:
In a case where an ASK method is used for a communication method between a semiconductor device and a reader/writer, the amplitude of a radio signal is changed by data transmitted from the semiconductor device to the reader/writer when data is not transmitted from the reader/writer to the semiconductor device. Therefore, in some cases, the semiconductor device mistakes data transmitted from the semiconductor device itself for data transmitted from the reader/writer to the semiconductor device. The semiconductor device includes an antenna circuit, a transmission circuit, a reception circuit, and an arithmetic processing circuit. The antenna circuit transmits and receives a radio signal. The transmission circuit outputs to the reception circuit a signal showing whether or not the antenna circuit is transmitting the radio signal.
摘要:
In an image forming system, after receiving print data, print setting data, and a command to display a preview from an information processing apparatus, an image drawing unit in an image forming apparatus generates a preview image that reflects the print setting data from the print data and send it to the information processing apparatus. After receiving the print data, the print setting data, and the command to start printing from the information processing apparatus, the image drawing unit generates drawing data that reflects the print setting data from the print data, and an engine unit prints out an image on paper.
摘要:
There is disclosed a honeycomb structure including a honeycomb structure section including: porous partition walls to divide and form a plurality of cells which extend from one end surface to the other end surface and become through channels of a fluid; and an outer peripheral wall positioned in an outermost periphery. The partition walls and the outer peripheral wall contain silicon carbide particles as an aggregate, and silicon as a binder to bind the silicon carbide particles, thicknesses of the partition walls are from 50 to 200 μm, a cell density is from 50 to 150 cells/cm2, an average particle diameter of silicon carbide as the aggregate is from 3 to 40 μm, and a volume resistivity at 400° C. is from 1 to 40 Ωcm.
摘要翻译:公开了一种蜂窝结构体,其包括蜂窝结构部分,该蜂窝结构部分包括:多孔分隔壁,用于分隔并形成从一个端面延伸到另一端面的多个单元,并且通过流体通道; 以及位于最外周的外周壁。 分隔壁和外周壁包含碳化硅颗粒作为骨料,硅作为粘合剂以结合碳化硅颗粒,分隔壁的厚度为50-200μm,孔密度为50-150个/ cm 2,作为骨料的碳化硅的平均粒径为3〜40μm,400℃下的体积电阻率为1〜40Ω·cm。
摘要:
An object is to provide a semiconductor device having a memory which can efficiently improve a yield by employing a structure which facilitates the use of a spare memory cell. The semiconductor device includes a memory cell array having a memory cell and a spare memory cell, a decoder connected to the memory cell and the spare memory cell, a data holding circuit connected to the decoder, and a battery which supplies electric power to the data holding circuit. The spare memory cell operates in accordance with an output from the data holding circuit.
摘要:
A plasma treatment apparatus includes a treatment chamber covered with a chamber wall, where an upper electrode faces a lower electrode; and a line chamber separated from the treatment chamber by the upper electrode and an insulator, covered with the chamber wall, and connected to a first gas diffusion chamber between a dispersion plate and a shower plate. The first gas diffusion chamber is connected to a second gas diffusion chamber between the dispersion plate and the upper electrode. The second gas diffusion chamber is connected to a first gas pipe in the upper electrode. The upper electrode and the chamber wall are provided on the same axis. The dispersion plate includes a center portion with no gas hole and a peripheral portion with plural gas holes. The center portion faces a gas introduction port of the first gas pipe, connected to an electrode plane of the upper electrode.
摘要:
In acquisition of a micro image of a sample S by a micro image acquiring unit 30, when a plurality of image acquiring ranges are set for the sample S as an object of image acquisition, a plurality of corresponding focus information are set, and furthermore, when a plurality of partial images acquired by scanning the sample S by the micro image acquiring unit 30 include a partial image including mixing of a plurality of image acquiring ranges, the focus information is switched in the middle of scanning of the partial image. With such a structure, even when a plurality of objects are contained in the sample S, images of the respective objects can be preferably acquired. Thereby, an image acquiring apparatus, an image acquiring method, and an image acquiring program which are capable of preferably acquiring images of a plurality of objects are realized even when the plurality of objects are contained in a sample S.
摘要:
An object is to provide a semiconductor device including an oxide semiconductor film, which has stable electrical characteristics and high reliability. A stack of first and second material films is formed by forming the first material film (a film having a hexagonal crystal structure) having a thickness of 1 nm to 10 nm over an insulating surface and forming the second material film having a hexagonal crystal structure (a crystalline oxide semiconductor film) using the first material film as a nucleus. As the first material film, a material film having a wurtzite crystal structure (e.g., gallium nitride or aluminum nitride) or a material film having a corundum crystal structure (α-Al2O3, α-Ga2O3, In2O3, Ti2O3, V2O3, Cr2O3, or α-Fe2O3) is used.
摘要翻译:本发明的目的是提供一种具有稳定的电气特性和高可靠性的氧化物半导体膜的半导体装置。 通过在绝缘表面上形成厚度为1nm至10nm的第一材料膜(具有六方晶体结构的膜)形成第一和第二材料膜的叠层,并形成具有六方晶系结构的第二材料膜( 使用第一材料膜作为核的结晶氧化物半导体膜)。 作为第一材料膜,具有纤锌矿晶体结构的材料膜(例如氮化镓或氮化铝)或具有刚玉晶体结构的材料膜(α-Al 2 O 3,α-Ga 2 O 3,In 2 O 3,Ti 2 O 3,V 2 O 3,Cr 2 O 3,或 α-Fe 2 O 3)。
摘要:
A surgical assistance system for operating on biological tissue using a surgical tool attached to an arm of an automatically-controlled surgical instrument so that an optimal feed rate of the tool is calculated and outputted to the surgical instrument, the system including: a device for storing and voxelizing medical image data obtained from a biological tissue subject to surgery; a device for setting an operative location based on the shape of the biological tissue; a device for calculating a tool path along which the tool travels to perform surgery at an operative location; a device for determining the region of interference between the tool and the voxels; a device for determining the hardness of the biological tissue in the interference region; a device for calculating an optimal tool feed rate corresponding to the hardness; and a device for outputting the feed rate obtained by the calculations to the surgical instrument.