摘要:
The present invention provides a semiconductor pressure sensor having a glass base and a metal base bonded together satisfactorily so that a silicon diaphragm may not be affected by residual strain, and an intelligent differential pressure and pressure transmitting device employing the semiconductor pressure sensor. The semiconductor pressure sensor comprises a silicon diaphragm (1) provided with a strain-sensitive element, a glass or ceramic base (2) bonded to the silicon diaphragm (1), and a metal base (4) bonded to the glass or ceramic base (2) with a bonding glass (3). The thermal expansion coefficient of the metal base (4) at a temperature corresponding to the strain point of the bonding glass (3) is not greater than that of the glass or ceramic base (2).
摘要:
A differential pressure sensor is disclosed, and in particular, there is disclosed a multiple function type differential pressure sensor capable of reducing a zero-point-change and a span change of means for detecting a differential pressure when applying a static pressure and being readily manufactured at high accuracy. The multiple function type differential pressure sensor is constructed by a semiconductor chip 1 for detecting a differential pressure, a fixing base 2 which has a joining part 21 joined to a thick part of the semiconductor chip 1 and which has a thickness less than or equal to that of the semiconductor chip 1, and also which has at least one thin part 22 in an outer periphery other than the joining part 21, and a housing 4 joined to the fixing base.
摘要:
A process for producing a film pattern, in which a layer of photosensitive resin composition is formed on a substrate and exposed selectively through a mask to light to thereby obtain a film pattern provided on its surface with protrusions and depressions without the need to remove the layer of photosensitive resin composition at unexposed regions or exposed regions by, for example, development; and a photosensitive resin composition for use in the above process for producing a film pattern. There is provided a process for producing a patterned film, comprising the steps of preparing a photosensitive resin composition that upon light irradiation, generates an acid or a base and is hardened; coating substrate (2) with the photosensitive resin composition to thereby form photosensitive resin composition layer (1) of given thickness; and exposing the photosensitive resin composition layer (1) selectively through mask (3) to light so as to travel at least portion of the photosensitive resin composition at unexposed regions toward the exposed regions and further effect hardening thereof, thereby obtaining patterned film (1A) furnished on its surface with protrusion/depression pattern.
摘要:
A process for producing a film pattern, in which a layer of photosensitive resin composition is formed on a substrate and exposed selectively through a mask to light to thereby obtain a film pattern provided on its surface with protrusions and depressions without the need to remove the layer of photosensitive resin composition at unexposed regions or exposed regions by, for example, development; and a photosensitive resin composition for use in the above process for producing a film pattern. There is provided a process for producing a patterned film, comprising the steps of preparing a photosensitive resin composition that upon light irradiation, generates an acid or a base and is hardened; coating substrate (2) with the photosensitive resin composition to thereby form photosensitive resin composition layer (1) of given thickness; and exposing the photosensitive resin composition layer (1) selectively through mask (3) to light so as to travel at least portion of the photosensitive resin composition at unexposed regions toward the exposed regions and further effect hardening thereof, thereby obtaining patterned film (1A) furnished on its surface with protrusion/depression pattern.
摘要:
An electronic image pickup apparatus according to the present invention includes a holding barrel, a lens frame supported by guide shafts inside the holding barrel and slidable and moveable in a direction of an optical axis, a light beam adjusting unit including an aperture and/or shutter for mechanically adjusting a light beam passing through the lens frame, and an image pickup element for converting an object image passed through the light beam adjusting unit to an electrical signal. The light beam adjusting unit comprises a base plate arranged perpendicular to the optical axis inside the lens barrel, an aperture member and/or a shutter member attached to the base plate, and an aperture driver for driving the aperture member and/or a shutter driver for driving the shutter member, arranged on the base plate.
摘要:
The present invention is a chip electronic part having: a ceramic member; a conductor pattern formed on the surface of the ceramic member; an insulating protective layer formed on the conductor pattern; an external electrode which is formed at least one end face of the ceramic member, electrically connected to the conductor pattern, and composed of an undercoating layer formed by dry plating and at least one plating layer formed by wet plating; and at least one groove formed near an end face of the insulating protective layer so as to limit the formation of the undercoating layer.
摘要:
A nickel hydrogen storage battery is provided which includes an electrode assembly formed by winding spirally a strip-like negative electrode (4) and a strip-like positive electrode with a separator interposed therebetween, the strip-like negative electrode (4) having a mixture layer containing a hydrogen storage alloy disposed on a core material. The electrode assembly is contained in a bottomed cylindrical container such that the negative electrode (4) forms the outermost peripheral portion. A portion corresponding to an outermost peripheral portion (5) of the negative electrode is a thin portion, and the thin portion is bent in advance in the winding direction of the electrode assembly to form an arc shape. In this manner, when the spirally wound electrode assembly is configured, the outermost peripheral portion of the negative electrode is prevented from peeling from the electrode assembly, and thus the insertability into the bottomed cylindrical container is improved.
摘要:
A method for forming an outer electrode capable of reducing a tact time when electrode paste is applied to end surfaces of electronic components a plurality of times. A paste tank 4 having a squeegee blade that is vertically slidable is disposed on a flat board 1 having an area being a plurality of times as large as that of a holding plate in a longitudinal direction of the flat board. A paste film is spread on the flat board by moving the flat board 1 by a length corresponding to the length of one holding plate while a predetermined gap is maintained between the squeegee blade and the flat board. The electrode paste is applied to first end surfaces of electronic components C held by the holding plate H by dipping the first end surfaces of the electronic components C in this paste film. The electrode paste is applied to the first end surfaces of the electronic components a plurality of times by repeating the spreading step and the applying step.
摘要:
A nickel metal hydride rechargeable battery has a closed-end tubular container containing a spiral-shaped electrode assembly formed by winding a negative electrode (1) and a positive electrode with a separator interposed therebetween such that the outermost periphery of the assembly is the negative electrode (1), the negative electrode (1) being formed by disposing on a conductive substrate a mixture layer containing a hydrogen-absorption alloy, the positive electrode employing nickel hydroxide as an active material. In the nickel metal hydride rechargeable battery, the surface roughness of the outermost peripheral portion of the mixture layer of the negative electrode (1) which contacts an inner side wall of the closed-end tubular container is 3.5 μm or more in terms of ten-point average roughness and is larger than the surface roughness of the other portion of the mixture layer. The reduction of oxygen gas during rapid charging is thereby facilitated without lowering the design capacity of the battery.
摘要:
An apparatus for radiographic examination includes a detection unit including a detector configured to detect a gamma ray emitted from a radioactive isotope in an object and to output a detected signal, a first measurement unit configured to determine a first crossing time at which a pulse height of the detected signal becomes substantially equal to a first threshold value, a second measurement unit configured to determine a second crossing time at which the pulse height of the detected signal becomes substantially equal to a second threshold value, and an incidence time calculation unit configured to calculate a starting time of the detected signal based on the first crossing time and the second crossing time and to output detection data; and an information processing unit configured to determine distribution of radioactive isotopes in the object based on multiple sets of said detection data.