Abstract: A spring plate includes a central portion; an opening that is positioned at a center of the central portion; and a strip extending from a part of an inner edge of the opening that is positioned at the center of the central portion. The strip includes a first width that is positioned adjacent to the part of the inner edge of the opening and a second width that is positioned adjacent to an end of the strip. The first width of the strip is wider than the second width that is positioned adjacent to the end of the strip.

Abstract: A low travel switch assembly and systems and methods for using the same are disclosed. The low travel dome may include a domed surface having upper and lower portions, and a set of tuning members integrated within the domed surface between the upper and lower portions. The tuning members may be operative to control a force-displacement curve characteristic of the low travel dome.

Abstract: A primary object of this invention is to provide a method for operating a continuous casting machine with which a mold can oscillate with a predetermined oscillation waveform since the start of operation of an oscillator. This invention is a method for operating a continuous casting machine, the method comprising: withdrawing a slab from a mold while vertically oscillating the mold with an oscillation waveform represented by the following formula (1) by selecting a value of ? according to a value of b so that the following formula (1) satisfies r(0)=0: r(t)=(S/2){sin(?t+?)+b cos 2(?t+?)+b}??(1) where r(t): displacement of the mold (mm), S: vibration stroke of the mold S (mm), ?: angular velocity (=2?f) (rad/s), f: oscillation frequency of the mold (Hz), t: time(s), ?: initial phase (°), and b: non-sine coefficient (0<b?0.25).

Abstract: In a first aspect of the present disclosure, a spring plate includes a central portion; an opening that is positioned at a center of the central portion; and a strip extending from a part of an inner edge of the opening that is positioned at the center of the central portion. The strip includes a first width that is positioned adjacent to the part of the inner edge of the opening and a second width that is positioned adjacent to an end of the strip. The first width of the strip is wider than the second width that is positioned adjacent to the end of the strip.

Abstract: According to the present invention, a semiconductor device includes a transistor provided in a first substrate, a gate pad of the transistor, a conductive bump provided on the gate pad, a second substrate provided above the first substrate, a first electrode passing through from a first face to a second face of the second substrate and connected with the conductive bump on the second face side, a resistor connected to the first face side of the first electrode with its one end and connected to an input terminal with the other end and a second electrode provided adjacent to the first electrode on the first face and connected to the input terminal without interposing the resistor, wherein a gate leakage current of the transistor flows from the first electrode to the input terminal through a base material of the second substrate and the second electrode.

Abstract: Provided are a switch module and a push switch that have a soft sensation when pressed. A push switch and a switch module have a substrate, a first fixed contact point disposed on the substrate surface, a second fixed contact point disposed around the first fixed contact point on the substrate surface, a convex dome-shaped upper spring disposed on the substrate surface so that an end part is in contact with the second fixed contact point, the upper spring being pressed so as to invert the dome shape and to establish conduction between the first fixed contact point and the second fixed contact point, and a lower spring disposed below the upper spring, the lower spring adjusting the operation load applied to the upper spring during inversion of the dome shape.

Abstract: A field effect transistor includes: a semiconductor substrate having a main surface; a plurality of source electrodes and a plurality of drain electrodes alternately disposed and ohmic-connected with the main surface of the semiconductor substrate; a plurality of gate electrodes Schottky-connected with the main surface of the semiconductor substrate and respectively disposed between the plurality of source electrodes and the plurality of drain electrodes; and a Schottky electrode Schottky-connected with the main surface of the semiconductor substrate, wherein each of the plurality of drain electrodes has first and second portions separated from each other, a sum of widths of the first and second portions of each drain electrode is smaller than a width of one source electrode, the Schottky electrode is disposed between the first portion and the second portion of the drain electrode.

Abstract: A primary object of this invention is to provide a method for operating a continuous casting machine with which a mold can oscillate with a predetermined oscillation waveform since the start of operation of an oscillator. This invention is a method for operating a continuous casting machine, the method comprising: withdrawing a slab from a mold while vertically oscillating the mold with an oscillation waveform represented by the following formula (1) by selecting a value of ? according to a value of b so that the following formula (1) satisfies r(0)=0: r(t)=(S/2){sin(?t+?)+b cos 2(?t+?)+b}??(1) where r(t): displacement of the mold (mm), S: vibration stroke of the mold S (mm), ?: angular velocity (=2?f) (rad/s), f: oscillation frequency of the mold (Hz), t: time(s), ?: initial phase (°), and b: non-sine coefficient (0<b?0.25).

Abstract: A transistor includes: a semiconductor substrate; a plurality of gate electrodes, a plurality of source electrodes, and a plurality of drain electrodes on the semiconductor substrate; a drain pad on the semiconductor substrate and connected to the plurality of drain electrodes; a metal wiring on the semiconductor substrate and arranged spaced apart from, adjacent to and parallel to the drain pad; and a ground pad on the semiconductor substrate and connected to both ends of the metal wiring.

Abstract: Provided is a push switch that can be made thin without requiring that a notch be made into a mounting board. The push switch includes a substrate having a L-shaped cross section and wherein the substrate has a front surface, a back surface and a side face, an accommodating recess provided on the front surface, a center contact provided so as to be substantially centralized in the accommodating recess, a pair of peripheral contacts each provided at a circumferential edge of the accommodating recess, a movable contact spring constructed so as to extend across the pair of peripheral contacts and designed to be brought into contact with the center contact when pressed, a connection pad provided on the back surface and electrically connected to the mounting substrate, and an electrode provided on the side face and electrically connected to the connection pad.

Abstract: A transistor includes: a semiconductor substrate; a plurality of gate electrodes, a plurality of source electrodes, and a plurality of drain electrodes on the semiconductor substrate; a drain pad on the semiconductor substrate and connected to the plurality of drain electrodes; a metal wiring on the semiconductor substrate and arranged spaced apart from, adjacent to and parallel to the drain pad; and a ground pad on the semiconductor substrate and connected to both ends of the metal wiring.

Abstract: A low travel switch assembly and systems and methods for using the same are disclosed. The low travel dome may include a domed surface having upper and lower portions, and a set of tuning members integrated within the domed surface between the upper and lower portions. The tuning members may be operative to control a force-displacement curve characteristic of the low travel dome.

Abstract: A field effect transistor includes: a semiconductor substrate having a main surface; a plurality of source electrodes and a plurality of drain electrodes alternately disposed and ohmic-connected with the main surface of the semiconductor substrate; a plurality of gate electrodes Schottky-connected with the main surface of the semiconductor substrate and respectively disposed between the plurality of source electrodes and the plurality of drain electrodes; and a Schottky electrode Schottky-connected with the main surface of the semiconductor substrate, wherein each of the plurality of drain electrodes has first and second portions separated from each other, a sum of widths of the first and second portions of each drain electrode is smaller than a width of one source electrode, the Schottky electrode is disposed between the first portion and the second portion of the drain electrode.

Abstract: A main purpose of the present invention is to provide a continuous casting method for a slab satisfying reductions of center segregation and center porosity, and inhibitions of surface cracks and internal cracks of a slab. The method includes a step of carrying out reduction on a slab having an unsolidified part by horizontal rolls and a step of alternatively carrying out reduction on the slab completely solidified by horizontal rolls and vertical rolls, wherein in the former step, reduction ratio of the slab is more than 0.5% and no more than 3% and a ratio of a width of the unsolidified part at the cross section of the slab to a width of a contact part of the slab and the rolls is 0 to 7.15, and in the latter step, each reduction ratio of the slab by the rolls is 5.4% to 6.8%.

Abstract: A low travel switch assembly and systems and methods for using the same are disclosed. The low travel dome may include a domed surface having upper and lower portions, and a set of tuning members integrated within the domed surface between the upper and lower portions. The tuning members may be operative to control a force-displacement curve characteristic of the low travel dome.

Abstract: Disclosed is a directional coupler including a first hollow portion that is disposed in a first ground conductor and is arranged directly above a first signal conductor and a second signal conductor, and that is constructed of a discontinuous structure that has a function of delaying the phase and that is small with respect to the one-quarter wavelength of an operating frequency.

Abstract: A main purpose of the present invention is to provide a continuous casting method for a slab satisfying reductions of center segregation and center porosity, and inhibitions of surface cracks and internal cracks of a slab. The method includes a step of carrying out reduction on a slab having an unsolidified part by horizontal rolls and a step of alternatively carrying out reduction on the slab completely solidified by horizontal rolls and vertical rolls, wherein in the former step, reduction ratio of the slab is more than 0.5% and no more than 3% and a ratio of a width of the unsolidified part at the cross section of the slab to a width of a contact part of the slab and the rolls is 0 to 7.15, and in the latter step, each reduction ratio of the slab by the rolls is 5.4% to 6.8%.

Abstract: Provided are a switch module and a push switch that have a soft sensation when pressed. A push switch and a switch module have a substrate, a first fixed contact point disposed on the substrate surface, a second fixed contact point disposed around the first fixed contact point on the substrate surface, a convex dome-shaped upper spring disposed on the substrate surface so that an end part is in contact with the second fixed contact point, the upper spring being pressed so as to invert the dome shape and to establish conduction between the first fixed contact point and the second fixed contact point, and a lower spring disposed below the upper spring, the lower spring adjusting the operation load applied to the upper spring during inversion of the dome shape.

Abstract: Provided is a push switch that can be made thin without requiring that a notch be made into a mounting board. The push switch includes a substrate having a L-shaped cross section and wherein the substrate has a front surface, a back surface and a side face, an accommodating recess provided on the front surface, a center contact provided so as to be substantially centralized in the accommodating recess, a pair of peripheral contacts each provided at a circumferential edge of the accommodating recess, a movable contact spring constructed so as to extend across the pair of peripheral contacts and designed to be brought into contact with the center contact when pressed, a connection pad provided on the back surface and electrically connected to the mounting substrate, and an electrode provided on the side face and electrically connected to the connection pad.

Abstract: Disclosed is a directional coupler including a broadside coupled line 1031 provided with a main signal line conductor 1001 and a secondary signal line conductor 1011 arranged in parallel with the main signal line conductor 1001, and an offset broadside coupled line 1032 provided with a main signal line conductor 1002 having an end portion connected to an end portion of the main signal line conductor 1001 and a second secondary signal line conductor 1012 having an end portion connected to an end portion of the secondary signal line conductor 1011, and arranged in parallel with the main signal line conductor 1002, in which a coupled line impedance in the broadside coupled line 1031 is lower than a terminal impedance and a coupled line impedance in the offset broadside coupled line 1032 is higher than the terminal impedance.