摘要:
A production method for a semiconductor device (e.g. MESFET) includes a metal pattern production process for producing a plurality of metal patterns e.g. gate, source, drain electrodes on a semiconductor substrate having an active layer. The metal pattern production process includes disposing dummy metal patterns (2a/2b) of silicon nitride at a plurality of metal pattern production regions on the semiconductor substrate using a resist mask (3), disposing a resist pattern (4) on the entire surface of the substrate with gaps between the metal pattern production regions, filling the gaps between said dummy metal patterns and the resist pattern with resist by reflowing the resist pattern (4), removing the dummy metal patterns (2a), depositing a metal layer over the entire surface of the partially completed device, and lifting off unwanted metal to produce a desired metal pattern of source/drain electrodes (5). The second and subsequent steps for replacing the dummy metal pattern with the metal pattern are repeated using another resist pattern (6) to form gate electrode (7).
摘要:
A drive circuit and a drive current correcting method are described herein. The drive circuit comprises a current source that outputs a drive current, and a correction circuit that outputs a correction current. The correction circuit includes a first RC time constant circuit. An output terminal of the current source is connected to an output terminal of the correction circuit.
摘要:
Provided is a method for managing a memory storage region used by a processor. The processor is connected to the memory that stores data accessed while a task is being executed. The memory management method including the steps of: dividing the memory area of the memory into blocks having a plurality of different sizes; selecting a block having a size matching a size of the data accessed while the task is being executed; and storing the data accessed while the task is being executed in the selected block.
摘要:
Optical signal transmission is improved by reducing the variance in light output level and OSNR by adjusting optical signal intensity and gain tilt, taking SRS influence into consideration.
摘要:
A galactosamine derivative represented by the following formula (1): wherein R1, R2 and R5 each independently represents SO3− or H, and at least one of them represents SO3−; R3 represents H, acetyl or SO3−; R4 represents H, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted alkynyl group, a substituted or unsubstituted acyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted aralkyl group; X represents O, S, NH or CH2; and represents an α bond or a β bond, and a sulfotransferase inhibitor comprising the derivative.
摘要翻译:由下式(1)表示的半乳糖胺衍生物:其中R 1,R 2和R 5各自独立地表示SO 3 或H,并且它们中的至少一个表示SO 3 - 。 R 3表示H,乙酰基或SO 3 - 。 R 4表示H,取代或未取代的烷基,取代或未取代的烯基,取代或未取代的炔基,取代或未取代的酰基,取代或未取代的芳基或取代 或未取代的芳烷基; X表示O,S,NH或CH 2; “img id =”custom-character-00001“he =”2.79mm“wi =”6.35mm“file =”US20060128659A1-20060615-P00001.TIF“alt =”custom character“img-content =”character“img- format =“tif”/>表示α键或β键,以及包含该衍生物的磺基转移酶抑制剂。
摘要:
To provide an automatic air supply mechanism for a pneumatic tire which can automatically supply air to a pneumatic tire by rotation of the pneumatic tire with respect to an axle when the air pressure in the pneumatic tire becomes a prescribed value or lower. There is provided an axle 101 and a wheel body rotatable with respect to the axle 101. An automatic air supply mechanism 1 is provided on the wheel body. The automatic air supply mechanism 1 has a constant pressure maintaining section 2 and a compression section 3. The constant pressure maintaining section 2 is configured to maintain the air pressure therein at a constant value and connected to the pneumatic tire mounted on the wheel body 110 in air flow communication. The compression section 3 compresses air when the wheel body 110 is rotated with respect to the axle 101 and feeds the compressed air into the constant pressure maintaining section 2.
摘要:
A semiconductor device having a plated heat sink (PHS) layer on the back surface, preventing a short circuit between a bonding wire, and a first metal layer. A method of making a semiconductor device including forming a catalyst layer on a bottom of a first separation groove in the front surface of a semiconductor substrate, and forming the first metal layer selectively in the first separation groove by electroless plating, using the catalyst layer as a catalyst.
摘要:
A memory core of a semiconductor data storing circuit device in a semiconductor chip is composed of a memory cell array having memory cells of rows and columns, data input/output circuits of a normal operation in which a data input line and a data output line for one bit of data are arranged at every four columns of the memory cell array, and checking circuits of a test operation in which a test data input line and a test data output line for one bit of test data are arranged at every eight (or two) columns of the memory cell array. In cases where the test data input/output lines for one bit of test data are arranged at every eight columns, because the number of test data input/output lines is lower than the number of data input/output lines, the number of input/output pins for the test operation can be reduced. Also, in cases where the test data input/output lines for one bit of test data are arranged at every two columns, because the number of test data input/output lines is higher than the number of data input/output lines, the number of memory cells simultaneously checked is increased, and a test operation time in the manufacturing of the memory cell array can be shortened.
摘要:
In a stepping motor, stator yokes have a plurality of comb-tooth-shaped magnetic poles 5b, 6b, 7b and 8b in such a manner that the comb-tooth-shaped magnetic poles are opposed to each other coaxially to a rotor portion made from a permanent magnet magnetized to have multiple magnetic poles, and an excitation coil is fitted on the external circumference of the stator yokes and the excitation coil and the stator yokes are surrounded by a frame yoke. Each of the yokes is formed of an Fe—Cr alloy having a predetermined ferrite single-phase structure so that occurrence of eddy currents in an alternating-current magnetic field is suppressed.
摘要:
A camera includes an electronic viewfinder adapted to electrically display a photographing image, a visual line detection unit for detecting the position of a camera operator's visual line on a picture plane of the electronic viewfinder, and a display processing unit for displaying on the electronic viewfinder a photographing-related information involved in a camera photographing. In such a camera, the display processing unit controls a display position of the photographing-related information in accordance with an output of the visual line detection unit.