摘要:
On an Si substrate 1, a buffer layer 2, a SiGe layer 3, and an Si cap layer 4 are formed. A mask is formed on the substrate, and then the substrate is patterned. In this manner, a trench 7a is formed so as to reach the Si substrate 1 and have the side faces of the SiGe layer 3 exposed. Then, the surface of the trench 7a is subjected to heat treatment for one hour at 750° C. so that Ge contained in a surface portion of the SiGe layer 3 is evaporated. Thus, a Ge evaporated portion 8 having a lower Ge content than that of other part of the SiGe layer 3 is formed in part of the SiGe layer 3 exposed at part of the trench 7a. Thereafter, the walls of the trench 7a are oxidized.
摘要:
A driving device for an ultrasonic actuator for driving a movable member is provided with a member sensor for detecting a present position of the movable member, a calculator for calculating a control target position of the movable member, a driving circuit for generating such a drive voltage as to drive the ultrasonic actuator in a specified resonant state, and a control circuit for controlling an operative state of the movable member by adjusting at least one of physical quantities specifying the drive voltage as a maneuverable physical quantity in accordance with a difference between the present position and the control target position so that the movable member pursues the control target position. There can be provided a driving device capable of executing a position servo control while being driven in a specified resonant state, and a position controller and a camera provided with such a driving device.
摘要:
A breather device of an engine is connected to an engine suction system. A breather chamber thereof for separating a blowby gas generated inside a crank chamber of the engine into gas and liquid is formed so as to face to a mating face of a plurality of cases, including a crankcase, connected to each other via a gasket, and a communication port is formed to the gasket, through which the blowby gas comes and goes in a space within the plurality of cases to thereby carry out the gas-liquid separation of the blowby gas. A cam chamber receiving a cam for driving a valve train provided for a cylinder head of the engine is arranged at a connection portion of the plurality cases including the crankcase in a sectioned manner in adjacent to the crank chamber in an axial direction of the crankshaft, and the breather chamber is formed above the cam chamber, the breather chamber being provided with a main opening so as to face to the cam chamber.
摘要:
An image capturing apparatus includes: an image pickup device in which photoelectric conversion elements corresponding to color components are arranged in a predetermined pattern; an acquisition unit that successively acquires a plurality of images by using the image pickup device; a detector that detects a positional deviation among the plurality of images; and a synthesis unit that compensates the positional deviation to synthesize the plurality of images by addition, wherein the synthesis unit adds the plurality of images in a state where the images have the same color layout as that of the photoelectric conversion elements in the image pickup device.
摘要:
Two shape memory alloy members d7 and d8 are connected to a movable member. Continuously, one and then the other of the shape memory alloy members d7 is heated alternately by application of a voltage or current thereto so that, by the generated force exerted by one shape memory alloy member d7 deformed by being heated, the other shape memory alloy member d8 is deformed and the movable member is moved. The shape memory alloy members d7 and d8 are made of a Ti—Ni—Cu alloy subjected to heat treatment at 300° C. or higher, and has an operating temperature of 70° C. or higher.
摘要:
An image sensing apparatus includes: a yaw sensor for detecting a shake of the image sensing apparatus in a yaw direction, a pitch sensor for detecting a shake of the image sensing apparatus in a pitch direction, the pitch sensor having a detection precision higher than the yaw sensor, and a shake correcting section for correcting a shake of the image sensing apparatus based on an output signal from the yaw sensor and an output signal from the pitch sensor. The shake correction can be performed with higher precision.
摘要:
A camera is provided with: a detector for detecting a shake amount of the apparatus with respect to an object at an interval; a calculator for calculating a shake speed and a shake acceleration rate based on detected shake amounts, and calculates an estimative shake amount based on a calculated shake speed, a calculated shake acceleration rate, and a coefficient k (0
摘要:
In the method for fabricating a semiconductor device of the present invention, a collector layer of a first conductivity type is formed in a region of a semiconductor substrate sandwiched by device isolation. A collector opening is formed through a first insulating layer deposited on the semiconductor substrate so that the range of the collector opening covers the collector layer and part of the device isolation. A semiconductor layer of a second conductivity type as an external base is formed on a portion of the semiconductor substrate located inside the collector opening, while junction leak prevention layers of the same conductivity type as the external base are formed in the semiconductor substrate. Thus, the active region is narrower than the collector opening reducing the transistor area, while minimizing junction leak.
摘要:
A communication terminal comprises a memory for storing a table in which data for identifying a destination of communication and a resolution of a display device of the destination are associated with each other, an image processor for generating image data with a resolution of the display device of the destination based on the table, and a transmission section for transmitting the image data generated by the image processor. By transmitting the image data with a resolution corresponding to the resolution of the display device of the destination, data volume to be communicated is reduced and wasteful power consumption of battery is suppressed in portable devices.
摘要:
A process capable of reclaiming used semiconductor wafers with a reduced metallic contamination level on wafer surfaces. The process comprises the steps of removing one or more surface layers of the substrate by chemical etching; scraping off one surface of the substrate in small amount by mechanical machining; removing a damage layer, which has occurred due to the mechanical machining, by chemical etching; and polishing the other surface of the substrate into a mirror finish.