摘要:
There is disclosed a method for producing an epitaxial wafer with a buried diffusion layer comprising: implanting an impurity into a silicon single crystal wafer; subsequently diffusing the impurity in the wafer to form a diffusion layer; at least removing an oxide film on the diffusion layer; and thereafter forming a silicon epitaxial layer over the wafer to produce a silicon epitaxial wafer with a buried diffusion layer; wherein at least the oxide film on the diffusion layer is removed by etching with hydrofluoric acid to which a surfactant is added, and then the silicon epitaxial layer is formed. There can be provided a method for producing an epitaxial wafer with a buried diffusion layer in which generation of crystal defects in a silicon epitaxial layer is reduced effectively and an epitaxial wafer with a buried diffusion layer.
摘要:
There is disclosed a method for producing an epitaxial wafer with a buried diffusion layer comprising: implanting an impurity into a silicon single crystal wafer; subsequently diffusing the impurity in the wafer to form a diffusion layer; at least removing an oxide film on the diffusion layer; and thereafter forming a silicon epitaxial layer over the wafer to produce a silicon epitaxial wafer with a buried diffusion layer; wherein at least the oxide film on the diffusion layer is removed by etching with hydrofluoric acid to which a surfactant is added, and then the silicon epitaxial layer is formed. There can be provided a method for producing an epitaxial wafer with a buried diffusion layer in which generation of crystal defects in a silicon epitaxial layer is reduced effectively and an epitaxial wafer with a buried diffusion layer.
摘要:
A method of manufacturing a flow path member includes inserting the first flow path member into each concave portion of the second flow path member and welding the first flow path member and the second flow path member in a circumferential direction of a region where the first flow path and the second flow path communicates each other; and providing two or more injecting portions which are provided with a gap wider than a gap between a wall surface of the concave portion which faces the first flow path member and a circumference surface of the first flow path member inserted into each concave portion which faces the wall surface, communicate with each concave portion, and are opened to the same side as the concave portion to have a concave shape to each concave portion in the second flow path member.
摘要:
An image selection device includes: an image acquiring unit which acquires a plurality of shot images acquired by continuously shooting a subject; an area segmentation unit which segments an image area of the shot image into a motion area indicating different positions by a specified amount or more between two shot images and a non-motion area other than the motion area based on the two consecutive shot images in time series in the plurality of shot images; and a selection unit which selects at least one shot image from the plurality of shot images based on an amount of blur of an image in the non-motion area.
摘要:
An in-ceiling embedded type air conditioner including an indoor unit having an air blower and an indoor heat exchanger accommodated in a housing a substantially box-shape, and a filtering unit including a gas-liquid contact member that is disposed at the downstream side of the indoor heat exchanger on an air blowing passage through which air sucked by the air blower flows in the indoor unit and infiltrated with electrolytic water generated by electrolyzing water, the air and the electrolytic water being brought into contact with each other in the gas-liquid contact member, whereby the air cooled or heated in the indoor heat exchanger is filtered, that is, virus, etc. contained in the air is inactivated, sterilized or the like and then blown out to a room to be air-conditioned.
摘要:
A liquid ejection head includes a head main body which discharges liquid, a flow path member main body on which a liquid reception member for receiving liquid supplied from the outside is formed, a first case, a second case, and a first insertion portion which is provided on the flow path member main body and through which a securing member for securing the first case, the second case, and the flow path member main body to one another is inserted. In the liquid ejection head, the first insertion portion is formed such that the outer wall covers an exposing portion from which the securing member is exposed.
摘要:
A liquid ejecting head includes: a head main body including a nozzle opening that ejects a liquid; and a fixed plate fixed to a liquid ejecting surface of the head main body, and including an exposure opening, the nozzle opening of the head main body being formed in the liquid ejecting surface of the head main body, the nozzle opening of the liquid ejecting surface being exposed to the exposure opening. A positioning hole open to the liquid ejecting surface and positioned with respect to the nozzle opening is provided in the head main body. The fixed plate is fixed to the liquid ejecting surface so as to close the positioning hole. The fixed plate includes an extension portion protruding from the liquid ejecting surface. At least two head positioning holes are provided in the extension portion.
摘要:
An electrically driven vehicle equipped with electric motors (1, 4) for driving or braking drive wheels (3, 6), and an electric motor controller (33) for controlling the electric motors includes: wheel speed detectors (9 to 12) for detecting the wheel speed of the drive wheels and that of idler wheels (7, 8); computing means (22 to 28, 35 to 38) for computing the slip ratio of the drive wheels based on the wheel speed of the drive wheels and that of the idler wheels; and a determiner (29) for determining that the drive wheels are slipping if the slip ratio exceeds a slip ratio determination value. If the wheel speed of the idler wheels is lower than set speeds Va2, Vb2, then the determiner (29) changes the slip ratio determination value to a value having as the same sign as, and a larger absolute value than, the values λa2, λb2 used when the wheel speed of the idler wheels is higher than the set speeds Va2, Vb2. This structure shortens acceleration time during acceleration traveling and reduces braking distance during deceleration traveling while inhibiting vibrations of the electrically driven vehicle.
摘要:
An echo cancelling device includes an adaptive filter which synthesizes a spurious echo signal from a receiving signal, a first subtractor which generates an echo cancellation signal based on an input signal including a voice signal of a speaker and the spurious echo signal, and an error signal generating circuit which generates an error signal based on the input signal and the echo cancellation signal.