Glossary - Electronic Component
Manufacturing
B
- Batch furnace, batch oven
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Category: Equipment-related
This equipment performs batch treatment by loading a certain quantity of workpieces into the heating chamber and treating them at the same time. Although the time required for one treatment is long and efficiency is poor, it is possible to perform treatment under different conditions each time. In order to ensure uniformity within a batch, technologies are necessary to maintain uniformity of the atmosphere and temperature profile inside the heating chamber.
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- Belt cleaner
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Category: Equipment-related
This is an option that can be installed onto our mesh belt type continuous furnaces. It is a mechanism that removes scale and other dirt that adheres to the mesh belt. It reduces dirt adhering to workpieces.
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C
- Carbon nanotubes (CNT)
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Category: Applications
This is a cylindrical (tube-shaped) substance with a diameter of several nanometers and composed only of carbon. Because it is formed by strong chemical bonds, it is extremely stable both chemically and in response to heat. Although the density is approximately half that of aluminum and it is extremely lightweight, the strength is approximately 20 times that of steel. It has current density resistance that is more than 1000 times that of copper, and also has higher thermal conductivity than copper. It is used in rechargeable batteries and other products in the electronics field and automotive field.
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- Catalytic exhaust gas treatment equipment
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Category: Equipment-related
This is an option that can be installed onto our continuous furnaces. It uses a catalytic reaction to purify the exhaust gases. It is compact and energy-saving, however it cannot be used when the exhaust gases contain a substance which poisons the catalyst.
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- CFRP
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Category: Applications
CFRP is an acronym for Carbon Fiber Reinforced Plastics. This compound material is plastic that was reinforced with carbon fiber. It is lighter and stronger than steel, and also has excellent chemical resistance. It is used in fields including sports and leisure products, automobiles and motorcycles, construction, and aerospace.
However recycling CFRP is not easy and in most cases it is disposed of in landfill. For this reason, efforts are proceeding to develop and commercialize technology for high-quality removal of the carbon fibers.
- Chip resistor
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Category: Applications
This is a resistor that is formed on a ceramic substrate. It has an electrode shape that allows it to be mounted directly onto the substrate surface. This is the most frequently used surface mounted component. Because the structure is flat and there is no lead wire, it has a smaller inductance component compared to a lead-wire type resistor. Chip resistors account for approximately 90% of the solid-state resistors that are in general use.
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- Clean oven
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Category: Equipment-related
This is an oven that traps and filters out airborne dust and other substances. Because the air circulating inside the chamber where heat treatment is performed has passed through a filter, heat treatment can be performed in a clean environment.
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- Continuous furnace, continuous oven
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Category: Equipment-related
This equipment performs heat treatment while workpieces on a mesh belt or other transport mechanism are transported through the heating zone. Because all workpieces are treated under the same conditions, it is suitable for producing a single product in large quantities.
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D
- Debinding
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Category: Process
A binder is added to some electronic components, ceramic parts, and other products to give them plasticity and shape retention during the manufacturing process. Debinding is a process that removes this binder.
- Degreasing
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Category: Process
This removes oil adhering to the surface and other parts during the product manufacturing process.
E
- Electrostatic chuck
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Category: Applications
This is a device that adsorbs a target object using an electrical force. Because the physical force applied to the target object is small, it reduces the risk of damaging delicate objects. It is primarily used to hold wafers in semiconductor production processes, and is made using ceramic with excellent heat resistance, wear resistance, and chemical stability.
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- Energy-saving mode
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Category: Equipment-related
This is one energy-saving option for our continuous furnaces. It saves energy by changing the furnace temperature, conveyor speed, and amounts of air supply and exhaust to low-load conditions when the equipment is in standby state.
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- Exhaust gas treatment equipment
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Category: Equipment-related
This equipment combusts and decomposes organic substances contained in exhaust gases produced during heat treatment in order to eliminate odors and clean the exhaust gases. Exhaust gases which contain organic substances produced during debinding, degreasing, or other processes have strong irritating odors and are also flammable. If they are discharged untreated, they will adversely affect the work environment and the environment surrounding the plant, and may result in the risk of explosion or fire.
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F
- Ferrite
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Category: Applications
This is a magnetic ceramic with ferric oxide as the primary component. It is used as a magnetic material in electrical and communication devices.
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- Fine ceramics
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Category: Applications
These are new types of ceramic that were purpose-developed in order to improve the performance of conventional ceramics and give ceramics functions that they did not have before. Types include alumina, zirconia, silicon carbide, and aluminum nitride, and they are used in semiconductors, automobiles, telecommunications, industrial machinery, medicine, and other fields.
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- Firing
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Category: Process
This is a heat treatment that is performed primarily to create stable component compounds and ensure a certain shape and strength by heating the workpiece at high temperature.
- Forced exhaust equipment
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Category: Equipment-related
This is exhaust equipment that is used with the standard muffle type and multi intake/exhaust type mesh belt type continuous furnaces produced by our company. Air is supplied into the exhaust pipe, allowing the gases produced during heat treatment to be efficiently discharged outside the furnace.
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- Fuel cell
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Category: Applications
A fuel cell utilizes the principle of electrolysis of water to cause a chemical reaction between hydrogen and oxygen that generates electricity. Only water is produced by this reaction, and it produces no greenhouse gases or air pollutants. Fuel cells are being introduced in ordinary homes as household storage batteries. There are also expectations that fuel cell vehicles will enter widespread use. There are several types including solid oxide fuel cells (SOFC), molten carbonate fuel cells (MCFC), phosphoric acid fuel cells (PAFC), and solid polymer electrolyte fuel cells (PEFC).
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H
- Heat sink
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Category: Applications
This is a part that is installed on a body that emits heat in order to radiate and discharge the heat. Materials frequently used are metals such as aluminum, iron, and copper, or ceramics such as aluminum nitride.
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- High-performance thermal insulation
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Category: Equipment-related
This is one energy-saving option for our continuous furnaces. By changing the thermal insulation to high-performance thermal insulation, this reduces the amount of dissipated heat and produces energy-saving effects.
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I
- Igniter
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Category: Equipment-related
This is a safety device that is installed when performing heat treatment in a hydrogen atmosphere. It is able to combust the hydrogen that is contained in the exhaust gases.
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- Inductor
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Category: Applications
These are another basic element of electronic devices together with elements such as capacitors and resistors. A ferrite or other core is wrapped with a coil of conducting wire. This part uses the effects of electromagnetic induction to store electrical current energy as magnetic energy. Its properties allow low-frequency signals to pass easily but make it difficult for high-frequency signals to pass. Inductors are used in a wide range of applications including filters, choke coils, and transformers.
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- Inert gas
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Category: Equipment-related
A gas such as nitrogen or argon is injected to reduce the oxygen concentration in the heating zone.
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L
- Lithium-ion battery
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Category: Applications
This is a rechargeable battery that is charged and discharged when lithium ions pass between the cathode and anode. Generally cobalt, nickel, or manganese is used for the cathode material, and graphite or similar material is used for the anode. These batteries are used for smartphones, notebook PCs, household storage batteries, electric vehicles, and other products. The energy density is high, and it is possible to produce compact, lightweight batteries that deliver high voltage and large power. Other advantages include small self-discharge, good battery efficiency, and long service life.
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- LTCC
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Category: Applications
LTCC is an acronym for Low Temperature Co-fired Ceramics. Because these ceramics are fired at low temperature, it is possible to use low-resistance metal as the conductor, reducing resistance loss. This makes them suitable for high-frequency applications. In addition, because wiring patterns can be formed on the surface layer and on the inner layers, lamination and flattening can be performed easily. Because the variation in contraction is small, high-precision and high-density mounting are also possible. They are used in fields such as circuit boards and high-frequency modules.
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M
- Magnetic material
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Category: Applications
This is a material which has the properties of a ferromagnetic body. There are soft magnetic materials that are used in the magnetic cores of transformers and other components, hard magnetic materials that are used as permanent magnets or for recording and storage, magnetostrictive materials which are used in parts such as ultrasonic oscillators, and magneto-resistance materials that are used in parts such as magnetic heads.
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- Metal contamination
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Category: Equipment-related
This refers to contamination of a workpiece by metallic impurities. With our ceramic conveyor type continuous furnace, the use of a ceramic muffle allows heat treatment in an environment free of metal contaminants.
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- MLCC
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Category: Applications
MLCC is an acronym for Multi-Layered Ceramic Capacitors. These chip-type capacitors are designed to be small-size and large-capacity thanks to multi-layered (laminated) ceramic dielectrics and metal electrodes. The compact, heat-resistant design makes MLCCs ideal for high-frequency circuits, with frequent adoption in computers, communication devices, video devices, automobiles, and most other digital devices.
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N
- Non-oxidizing atmosphere,
low oxygen concentration atmosphere -
Category: Equipment-related
This is an atmosphere with a low concentration of oxygen created by replacing the atmosphere inside the heating chamber with an inert gas such as nitrogen or argon.
Depending on the workpiece, reactions with oxygen in the air may be undesirable. In these cases, replacing the atmosphere inside the heating chamber with an inert gas allows heat treatment at low oxygen concentrations.
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O
- Oven
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Category: Equipment-related
A general term for heat treatment equipment. In our equipment, it refers to hot air circulation-type heating equipment.
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P
- Piezoelectric element
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Category: Applications
This is an electronic device which contains a piezoelectric material (such as quartz crystal or ceramic) with a property (piezoelectric effect) that causes it to generate voltage when pressure is applied to it, or to change shape when voltage is applied to it. Piezoelectric elements are used in a wide range of electronic devices, and examples are oscillators and speakers, buzzers, actuators, motors, sensors, and filters.
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- Power card
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Category: Applications
This is a card-type power module that contains multiple power semiconductors. It is used for purposes such as motor power control in hybrid vehicles, electric vehicles, and other products.
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R
- Removable air supply and exhaust unit
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Category: Equipment-related
This is an optional specification for our mesh belt type continuous furnaces. Making the air supply and exhaust unit removable allows for easy disassembly and cleaning of supply and exhaust pipes that were contaminated as a result of debinding or other process, improving maintainability. When a unit can no longer be used due to deterioration or other reason, it is possible to replace it with a new air supply and exhaust unit.
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S
- Solar battery
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Category: Applications
This is a power device that converts light energy to electrical energy (power). Although it is described as a “battery,” in fact it does not have a power storage function and must be combined with a storage device in order to store electricity. They are broadly divided into silicon, compound, and organic types. In recent years, research is progressing into perovskite solar batteries that can be inexpensively produced and are thin and lightweight.
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- Solid-state battery
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Category: Applications
Although the structure is similar to a lithium-ion battery, there is no electrolyte fluid and lithium ions are conducted between the cathode and anode via a solid electrolyte. Solid-state batteries are resistant to fire, and therefore can reduce the risk of fire compared to lithium-ion batteries. Solid-state batteries are classified into “oxide batteries” and “sulfide batteries” according the material.
In the future, these batteries may replace lithium-ion batteries in electric vehicles due to their safety, durability, high energy density, and short charging time.
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- Superheated steam
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Category: Equipment-related
This is colorless, transparent, high-temperature steam gas (H2O) generated by heating saturated steam evaporated at 100℃ to an even higher temperature under normal pressure. Because it has a specific heat that is higher than hot air and produces radiative effects, it is capable of rapid, uniform heat treatment.
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W
- Water-cooled tar trap
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Category: Equipment-related
This is an option that can be installed onto our continuous furnaces. This mechanism removes solvents and tar that are contained in the exhaust gases.
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- Wet gas
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Category: Equipment-related
This is gas that was humidified by a humidifier or other means.
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