Abstract:
A gate driver turns on/off a switching element Q1 by applying a control signal from a controller to a gate of the switching element. The switching element has the gate, a drain, and a source and contains a wide-bandgap semiconductor. The gate driver includes a parallel circuit that includes a first capacitor C1 and a first resistor R1 and is connected between the controller and the gate of the switching element and a short-circuit unit S4 that is connected between the gate and source of the switching element and short-circuits the gate and source of the switching element after a delay from an OFF pulse of the control signal.
Abstract:
Disclosed is a method of producing a piezoelectric actuator including a first electrode film forming process; a monomolecular film forming process; a pattering process of removing a monomolecular film having a rectangular shape; an application process of applying a precursor solution to the first electrode film exposed in the rectangular shape; a piezoelectric film forming process of converting the applied precursor solution into a piezoelectric film; and a second electrode film forming process. Materials of the precursor solution, the first electrode film, and the monomolecular film are adjusted so that the first electrode film is lyophilic and the monomolecular film is lyophobic to the precursor solution. The piezoelectric film forming process includes a drying and thermally decomposing process of drying and thermally decomposing the precursor solution; and a crystallizing process of crystallizing a thermally decomposed piezoelectric material.
Abstract:
A thin-film forming apparatus for forming a thin film on a substrate by using an ink-jet method includes an ink applying unit that applies an ink drop for thin-film formation to a predetermined area on a surface of the substrate; at least one laser light source for heating the ink drop thereby forming a thin film; and a laser-light irradiating unit that irradiates, with a laser light from the laser light source, a first spot positioned on a back side of the predetermined area of the substrate to which the ink drop has been applied.
Abstract:
To provide a semiconductor device in which a rectifying element capable of reducing a leak current in reverse bias when a high voltage is applied and reducing a forward voltage drop Vf and a transistor element are integrally formed on a single substrate.A semiconductor device has a transistor element and a rectifying element on a single substrate. The transistor element has an active layer formed on the substrate and three electrodes (source electrode, drain electrode, and gate electrode) disposed on the active layer. The rectifying element has an anode electrode disposed on the active layer, a cathode electrode which is the drain electrode, and a first auxiliary electrode between the anode electrode and cathode electrode.
Abstract:
In a method of manufacturing an inkjet head, a silicon dioxide (SiO2) layer is produced on the surface of first silicon member formed from single-crystal silicon. Next, a glass layer formed of borosilicate glass or the like is sputtered onto the surface of the silicon dioxide (SiO2) layer. A silicon oxide (SiOx, x
Abstract:
A semiconductor device having: a substrate; nitride-based compound semiconductor layers formed on one main surface of the substrate and made of a nitride-based compound semiconductor; a first electrode formed on the nitride-based compound semiconductor layers and having a Schottky junction with the nitride-based compound semiconductor layers; and a second electrode formed on the nitride-based compound semiconductor layers and subjected to low resistance contact with the nitride-based compound semiconductor layers, wherein the first electrode and substrate are electrically connected through a connection conductor.
Abstract:
An ink jet head includes: a chamber plate having a plurality of pressuring chambers formed therein for storing an ink; a vibrating plate bonded to the chamber plate; a housing having an ink flow path through which an ink is supplied into the pressuring chambers; an orifice through which an ink is ejected from the pressuring chambers; and a longitudinal vibration mode piezoelectric element for generating pressure under which an ink droplet is ejected through the orifice. A thickness of the vibration plate is from 5 μm to 10 μm.
Abstract:
A piezoelectric element is attached to a diaphragm via a relay member. A length of the relay member is shorter than the length of the piezoelectric element and longer than an active section in the piezoelectric element with respect to a direction orthogonal to a direction in which a plurality of nozzles are aligned. Also, a surface of the relay member that attached to the diaphragm has a width that is shorter than the piezoelectric element with respect to the direction in which the nozzles are aligned.
Abstract:
In a method of manufacturing an inkjet head, a silicon dioxide (SiO2) layer is produced on the surface of first silicon member formed from single-crystal silicon. Next, a glass layer formed of borosilicate glass or the like is sputtered onto the surface of the silicon dioxide (SiO2) layer. A silicon oxide (SiOx, x
Abstract translation:在制造喷墨头的方法中,在由单晶硅形成的第一硅部件的表面上产生二氧化硅(SiO 2)层。 接下来,将由硼硅酸盐玻璃等形成的玻璃层溅射到二氧化硅(SiO 2)层的表面上。 然后在第二硅构件的表面上形成氧化硅(SiO x x,x <2)层。 第一和第二硅构件通过用加热器在大约450℃下加热来结合在一起,因为在电极端子之间施加直流电压。 结果,在玻璃层和氧化硅(SiO x x,x <2)层的界面处形成二氧化硅(SiO 2/2)层,阳极结合 两层。
Abstract:
An inkjet printing system includes an array of transducers to eject ink, the array including the transducers divided into interspersed sets. A controller controls a firing sequence of the array of transducers. One set of transducers is fired, and after a delay, another set of transducers is fired and then, after further delays, each set is fired in turn. The delays are selected based on known response characteristics of the array of transducers to minimize the average crosstalk for all of the sets.