Abstract: A microwave processing device of the present disclosure is provided with a heating chamber, a microwave generating unit, an amplifying unit, a power supply unit, a detecting unit, a control unit, and a storage unit. The microwave generating unit generates microwave having an optional frequency in a predetermined frequency band. The amplifying unit amplifies an output level of the microwave. The power supply unit radiates the microwave amplified by the amplifying unit into the heating chamber as incident electric power. The detecting unit detects reflected electric power, which returns to the power supply unit from the heating chamber, from among the incident electric power. The control unit controls the microwave generating unit and the amplifying unit. The storage unit stores a value of the reflected electric power, together with a frequency of the microwave and an elapsed time from the start of heating.

Abstract: A prepreg having high processability and laminating performance and a method to produce such a prepreg is described, the prepreg comprising at least the components [A] to [E] shown below, and having a structure incorporating a first layer composed mainly of the component [A] and a first epoxy resin composition that contains the components [B] to [D] but which is substantially free of the component [E], and a second layer composed mainly of a second epoxy resin composition that contains the components [B] to [E], [A] carbon fiber, [B] epoxy resin, [C] curing agent, [D] thermoplastic resin, and [E] particles containing a thermoplastic resin as primary component and having a volume-average particle diameter of 5 to 50 ?m.

Abstract: A semiconductor device includes a semiconductor chip, a circuit board, a heat releasing plate, an adhesive member, and a conductive member. The circuit board transmits a signal of the semiconductor chip. The heat releasing plate has the semiconductor chip disposed thereon, and has an opening in a region on the outer side of a semiconductor chip placement region that is a region in which the semiconductor chip is disposed. The adhesive member is disposed in a region on the outer side of the opening on a different surface of the heat releasing plate from the surface on which the semiconductor chip is disposed, and bonds the circuit board and the heat releasing plate to each other. The conductive member connects the semiconductor chip and the circuit board to each other via the opening.

Abstract: A high frequency heating apparatus (1A) includes the following components: a first electrode (11) that is flat; a plurality of flat second electrodes (12) that are flat; a high-frequency power supply (20); a matching unit (30); a controller (40); and an electric field regulator (50). The second electrodes (12) are placed opposite to the first electrode (11). The high-frequency power supply (20) applies a high-frequency voltage to the first electrode (11). The matching unit (30) is placed between the first electrode (11) and the high-frequency power supply (20), and is impedance-matched with the high-frequency power supply (20). The controller (40) controls the high-frequency power supply (20). The electric field regulator (50) individually adjusts the electric field strengths in a plurality of regions located between first electrode (11) and the second electrodes (12). This aspect can reduce uneven heating.

Abstract: In a microwave treatment device according to the present disclosure, a controller selects a plurality of frequencies in a predetermined frequency band and causes a microwave generator to generate microwaves of a selected frequency. The controller causes the amplifier to change the output power level of the microwaves and to thereby supply the microwaves of one of a plurality of output power levels to the heating chamber. The controller measures a reflected wave frequency characteristic based on a radiated power and a reflected power. The controller calculates a linear component and a non-linear component of a power loss consumed by the heating chamber based on the reflected wave frequency characteristic. The controller estimates an amount of absorption power absorbed by a heating target based on the power loss obtained by combining the linear component and the non-linear component.

Abstract: A microwave treatment device according to one aspect of the present disclosure includes a heating chamber, a microwave generator, an amplifier, a feeder, a detector, a controller, and a storage. The microwave generator generates a microwave having an arbitrary frequency in a predetermined frequency band. The amplifier amplifies the microwave and outputs the amplified microwave as incident microwave power. The feeder supplies the incident microwave power to the heating chamber. The detector detects the incident microwave power and reflected microwave power that returns from the heating chamber to the feeder. The storage stores the incident microwave power and the reflected microwave power in association with the frequency of the microwave and time elapsed since the start of heating. The controller causes the microwave generator to execute a frequency sweep over the predetermined frequency band.

Abstract: A microwave treatment device includes a plurality of radiation parts, a transmission line, and a plurality of feeding parts. The plurality of radiation parts includes first, second, and third radiation parts, and radiates a microwave. The transmission line has a loop line structure provided with a plurality of branch parts including first, second, and third branch parts, and transmits the microwave to the first, second, and third radiation parts respectively connected to the first, second, and third branch parts. The plurality of feeding parts includes the first feeding part and the second feeding part arranged in the transmission line at an interval of ¼ or less of the wavelength of the microwave, and transmits the microwave to the transmission line. According to this aspect, a radiation part that radiates the microwave can be selectively switched. This enables the intended heating distribution to be achieved.

Abstract: The high-frequency treatment device according to one embodiment of the present disclosure includes: a heating chamber that accommodates a heating target; an oscillator; at least one feeder; a detector; and a controller. The oscillator generates high-frequency power having an arbitrary frequency in a predetermined frequency band. At least one feeder supplies incident microwave power based on the high-frequency power to the heating chamber. The detector detects the incident microwave power and reflected microwave power returning from the heating chamber to at least one feeder. The controller causes the oscillator to execute a frequency sweep and measures a reflection characteristic based on the incident microwave power and the reflected microwave power for each heating condition including a frequency. The controller determines, based on a reflection variation range indicating a change in the reflection characteristic for each heating condition, a heating condition to be used next.

Abstract: This high-frequency treatment device includes: a heating chamber configured to accommodate a heating target; a high-frequency power generator; a feeder; a detector; a controller; and a storage. The high-frequency power generator generates high-frequency power having a frequency in a predetermined frequency band. The feeder supplies incident microwave power corresponding to the high-frequency power to the heating chamber. The detector detects at least one of the incident microwave power and reflected microwave power that is included in the incident microwave power and returns from the heating chamber to the feeder. The controller controls heating of the heating target by controlling the high-frequency power generator. The storage stores, together with time elapsed from the start of heating, information detected by the detector. The controller causes the high-frequency power generator to repeatedly generate, on a per frequency basis, the high-frequency power having a plurality of frequencies for the heating.

Abstract: A jig (30) includes a first block portion (100) at which a probe head (300) is installed, and a first suction port (112) formed on the first block portion (100). Air present on a side where one end of a probe (330) provided in the probe head (300) is located is sucked from the first suction port (112).

Abstract: Provided is a probe head capable of reducing an inductance value of a ground probe. In a probe head 1, a pin plate 40, a pin block 50, and a solder resist film 60 are stacked in this order from a measuring instrument side to be integrally formed, and constitute a support body that supports a signal probe 10 and a first ground probe 20. The pin plate 40 is an insulator. The pin block 50 is a conductor, and is electrically connected to the first ground probe 20 and a measuring instrument-side ground, and is not electrically connected to the signal probe 10. The solder resist film 60 is provided on the surface of the pin block 50 on a side of a device to be inspected, and is interposed between the pin block 50 and the device to be inspected.

Abstract: A microwave treatment device comprises: a heating chamber that accommodates a heating target, a microwave generator that generates a microwave; a feeding unit that supplies the microwave to the heating chamber; a reflected microwave power detector that detects a reflected microwave power returned to the microwave generator; a controller that controls the microwave generator; and a storage unit. The storage unit stores a level of the reflected microwave power detected by the reflected microwave power detector together with a frequency of the microwave supplied to the heating chamber and an elapsed time after a start of heating the heating target. The controller causes the microwave generator to execute a frequency sweep over a specified frequency band and determines that the heating target is in a boiling state based on a temporal change in a value that is obtained based on the reflected microwave power at each frequency.

Abstract: A microwave treatment device comprises: a heating chamber that accommodates an object to be heated; a microwave generator that generates a microwave in a specified frequency band; an amplifier that amplifies the microwave; a feeding unit that supplies the amplified microwave to the heating chamber; a detector that detects a reflected microwave power; and a controller. The controller selects one of plural frequencies in the specified frequency band and causes the microwave generator to generate the microwave with the selected frequency. The controller causes the amplifier to change an output power of the microwave so that the microwave supplied to the heating chamber has one of plural output powers. The controller measures a reflected microwave frequency characteristic based on reflected microwave powers detected under each of a condition that the microwave has a first output power and a condition that the microwave has a second output power.

Abstract: A microwave treatment device of the present disclosure includes heating chamber (1) for accommodating object (2) to be heated, microwave generator (3), heater (7), power feeder (4), detector (5), and controller (6). Microwave generator (3) generates microwaves. Heater (7) includes a heat source other than the microwaves and heats an inside of heating chamber (1). Power feeder (4) supplies the heating chamber with the microwaves. Detector (5) detects reflected power from power feeder (4). Controller (6) controls heater (7) and microwave generator (3). When heater (7) carries out heating, Controller (6) causes microwave generator (3) to generate the microwaves in heating by heater (7). The microwaves have output power such that the reflected power at a level detectable by detector (5) returns. By present disclosure, by understanding progress of cooking, a heating target can be appropriately cooked.

Abstract: A high-frequency heating device that includes: a first conductor; a second conductor disposed with the first conductor through a space therebetween; a high-frequency power source that is connected to the first conductor and the second conductor and that applies a high-frequency voltage between the first conductor and the second conductor; and a connection path that electrically connects the first conductor and the second conductor to each other at a first connection position and a second connection position. The first connection position is different from a first power feeding position at which the first conductor and the high-frequency power source are connected to each other on the first conductor, and the second connection position is different from a second power feeding position at which the second conductor and the high-frequency power source are connected to each other on the second conductor.

Abstract: A high-frequency heating apparatus according to an embodiment of the present disclosure includes a heating chamber, an electrode, a high-frequency power supply, at least one matching element, and a controller. The heating chamber accommodates a heating target. The high-frequency power supply applies a high-frequency voltage to the electrode. The impedance matcher includes at least one matching element having a matching constant that is variable. The controller stops the high-frequency power supply to complete heating based on a temporal change of the matching constant of the at least one matching element. In this embodiment, a heating target can be heated efficiently.

Abstract: A microwave treatment device comprises a heating chamber for accommodating a heating target, a microwave generator, a feeder, a detector, and a controller. The microwave generator generates a microwave having a frequency in a specified frequency band. The feeder radiates the microwave inside the heating chamber. The detector detects a reflected microwave power reflected from the heating chamber. The controller causes the microwave generator to execute a frequency sweeping in the specified frequency band. The controller also controls the microwave generator according to a temporal change in a frequency characteristic of the reflected microwave power. The temporal change in the frequency characteristic of the reflected microwave power is based on the frequency of the microwave, a level of the reflected microwave power, and a time passed from a start of heating. In this aspect, it is possible to accurately recognizes the progress of cooking while heating the object.

Abstract: A high-frequency heating apparatus includes heating chamber (1), generator (2), radiator (3), and controller (30). Heating chamber (1) has a wall surface including metal, and accommodates object (4) to be heated. Generator (2) generates high-frequency power at any frequency in a band of 2.4 GHz to 2.5 GHz. Radiator (3) includes loop antenna (3) including a plurality of loop portions (3A, 3B), and radiates the high-frequency power generated by generator (2) to heating chamber (1). Controller (30) controls a frequency of the high-frequency power generated by generator (2). According to this aspect, a heating target can be uniformly heated or partially heated without a waveguide for transmitting high-frequency power.

Abstract: The heating cooker includes a first heater disposed below a tray to heat the tray, and second heater disposed over the tray to heat the tray. In addition, the heating cooker includes a controller that controls output of the first heater and switches energization of second heater in accordance with a kind of object to be heated and a quantity of object to be heated. Furthermore, second heater includes two plane-shaped insulators and a plurality of planar heat generators that are sandwiched between insulators, and the controller heats regions that are disposed over and below the tray to be opposed to each other by controlling energization of the first heater and second heater. Furthermore, second heater has a distortion suppressor between the plurality of planar heat generators, and the distortion suppressor suppresses internal distortion of insulators caused by heating of the plurality of planar heat generators of second heater.

Abstract: A high-frequency heating apparatus according to the present disclosure includes a first electrode (11), a second electrode (12), a high-frequency power supply (30), a position adjuster (20), a detector (50), and a controller (60). The second electrode (12) is disposed facing the first electrode. The high-frequency power supply (30) supplies a high-frequency power to the first electrode. The position adjuster (20) adjusts a distance between the first electrode (11) and the second electrode (12). The detector (50) detects a reflected power from the first electrode (11) toward the high-frequency power supply (30). The controller (60) controls the position adjuster (20) based on the reflected power. In this embodiment, a heating target can be heated efficiently.