摘要:
A piezo-electric substrate is mainly comprised of a base material and a film formed on one main surface of the base material. In the base material, the main surface on which the film is formed is a roughed main surface. The piezo-electric substrate is obtained by forming the film comprised of a material with a coefficient of linear expansion smaller than a coefficient of linear expansion of the base material on the roughened main surface using a thermal spraying method.
摘要:
A piezo-electric substrate is mainly comprised of a base material and a film formed on one main surface of the base material. In the base material, the main surface on which the film is formed is a roughed main surface. The piezo-electric substrate is obtained by forming the film comprised of a material with a coefficient of linear expansion smaller than a coefficient of linear expansion of the base material on the roughened main surface using a thermal spraying method.
摘要:
Provided is a method for manufacturing an acoustic wave device that has an excellent temperature coefficient of frequency (TCF) and high accuracy of IDT pattern forming and is capable of resisting high temperature processing of 200 degrees or more. The method for manufacturing an acoustic wave device according to the present invention includes forming an IDT (2) on a principal surface (1a) of a piezoelectric substrate (1), and forming a film by thermal spraying a material (3) having a smaller linear thermal expansion coefficient than the piezoelectric substrate onto an opposite principal surface (1b) of the piezoelectric substrate (1) where the IDT (2) is formed.
摘要:
Provided are an acoustic wave device and a method for manufacturing the same, the acoustic wave device being effectively prevented from expanding and contracting due to temperature change and having a small frequency shift. The acoustic wave device of the present invention has a piezoelectric substrate (1) having an IDT (2) formed on one principal surface of the piezoelectric substrate (1), and a thermal spray film (3) formed on an opposite principal surface (1b) of the piezoelectric substrate (1), the thermal spray film being of a material having a smaller linear thermal expansion coefficient than the piezoelectric substrate (1) and having grain boundaries and pores (4), at least a part of which is filled with a filling material (5).
摘要:
Provided are an acoustic wave device and a method for manufacturing the same, the acoustic wave device being effectively prevented from expanding and contracting due to temperature change and having a small frequency shift. The acoustic wave device of the present invention has a piezoelectric substrate (1) having an IDT (2) formed on one principal surface of the piezoelectric substrate (1), and a thermal spray film (3) formed on an opposite principal surface (1b) of the piezoelectric substrate (1), the thermal spray film being of a material having a smaller linear thermal expansion coefficient than the piezoelectric substrate (1) and having grain boundaries and pores (4), at least a part of which is filled with a filling material (5).
摘要:
Provided is a method for manufacturing an acoustic wave device that has an excellent temperature coefficient of frequency (TCF) and high accuracy of IDT pattern forming and is capable of resisting high temperature processing of 200 degrees or more. The method for manufacturing an acoustic wave device according to the present invention includes forming an IDT (2) on a principal surface (1a) of a piezoelectric substrate (1), and forming a film by thermal spraying a material (3) having a smaller linear thermal expansion coefficient than the piezoelectric substrate onto an opposite principal surface (1b) of the piezoelectric substrate (1) where the IDT (2) is formed.
摘要:
A processing apparatus includes a gas supply passage for supplying a corrosive gas having a halogen, a part of the passage being made of a metal; a stabilization reaction unit which has an energy generator for supplying light energy or heat energy to the corrosive gas that has passed through the metallic part of the gas supply passage and/or has an obstacle configured to apply a collision energy to the corrosive gas that has passed through the metallic part of the gas supply passage, the collision energy being generated from a collision between the obstacle and said corrosive gas. A reaction for stabilizing a compound containing the metal and the halogen contained in the corrosive gas takes place by means of at least one of the light energy, heat energy, and collision energy; and a trapping unit which traps the compound stabilized in the stabilization reaction unit.
摘要:
There is disclosed a head driving device which drives a plurality of pressure generating elements for generating pressure fluctuation in a jetted object contained in each of associated pressure chambers formed in a jetting head of a jetting apparatus to eject the jetted object from each of nozzles communicated with the associated pressure chambers. In the device, a head driver generates a drive signal which is selectively applied to at least one of the pressure generating elements to be driven. A bias potential provider selectively applies a bias potential to at least one of the pressure generating elements not to be driven.
摘要:
A method of detecting a consumption status of liquid contained in a liquid container, comprising steps of: preparing a detection device having a piezoelectric element and attaching the detection device on a desired position of the liquid container so that at least a part of the detection device contacting the liquid; measuring a residual vibration of the detection device; and detecting the consumption status of the liquid contained in the liquid container on the basis of a result of the measurement of the residual vibration.
摘要:
An image forming apparatus is disclosed. The image forming apparatus includes a data receiving section connected to a computer via a network for receiving a command from the computer, a command processing section for processing the command received by the data receiving section, a command interpreting section for interpreting the command and a data transmitting section for transmitting device information obtained by the command processing section. The command processing section requests the command interpreting section to interpret the command before completing a start-up of a device from which the command processing section obtains the device information.