平井精密工業 List of Products and Services

Power semiconductors (power devices) are semiconductors capable of handling large currents and high voltages, and they are being developed for a wide range of applications, including electric vehicles and smartphones. Our company mainly collaborates on the processing of lead frames that support and fix power semiconductor (power device) chips and connect wiring, as well as heat sinks, and we often assist with tools and metal masks used in production processes. We can process complex and intricate shapes without using molds, achieving precision at the micron level (3μm to 2mm) in a short time. 【Features】 - Complex parts can be manufactured with micron-level processing accuracy in a short time without molds. - In lead frames, we have a variety of materials, including pure copper and copper alloys, and we can perform etching processing. - For heat sinks, we can handle thick copper with precision machining (fiber laser processing and wire electrical discharge machining) from Hirai Precision Industry. *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract

Etched products are used as light shields (aperture plates) for built-in camera modules in smartphones and mobile phones. To absorb light, they are generally black in appearance. There are also specifications that stack multiple plates to allow for fine adjustments of hole sizes. The holes are usually circular, but can also be of irregular shapes. However, with Hirai Precision Industry's etching process, it is possible to easily create irregular shapes. **Advantages of creating apertures through etching:** - Compared to machining (laser processing, wire electrical discharge machining, cutting), etching can produce parts with reduced warping and distortion. - It can process thin foils with a thickness of 0.005mm. - Not only etching, but also black surface treatment can be processed and delivered consistently. *For more details, please refer to the PDF document or feel free to contact us.*

• Processing Contract

We would like to introduce a case where we finished fine holes with a diameter of φ0.05mm (50 microns) using our specialty photochemical etching process. We can handle materials such as Cu (copper), AL (aluminum), Fe (iron), and Ni alloys (Kovar, 42 alloy, Amber), as well as special materials like silicon steel sheets. For fine hole processing of materials other than SUS, confirmation through prototyping and testing is necessary. We will consider processing according to your desired material, plate thickness, and required shape. 【Case Study (1) Overview】 ■ Processing Method: Etching ■ Material: SUS304-HTA, Plate Thickness 0.02mm ■ Hole Diameter: 0.025mm to 0.035mm (25 microns to 35 microns) ■ Product Size: φ30mm ■ Number of Sample Holes: 5 *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract

Our company can manufacture seal rings and caps using etching processing. A seal ring is a component used to prevent the leakage of fluids such as liquids and gases, as well as the intrusion of foreign substances from the outside to the inside. We assist in the production of metal seal rings through etching processing. Additionally, a cap is used in optical communication package components that support communication infrastructure and requires flatness and precision. Our company can accommodate stepped shapes using half-etching processing. [Features] ■ Etching Processing - By corroding from both sides of the metal plate, we can create holes, slits, and desired shapes. ■ Half-Etching Processing - By corroding from only one side of the metal plate, it is possible to achieve shapes with partial steps. *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract

Hirai Precision Industry specializes in metal etching processing. With this etching process, it is possible to create fine residual widths. We will consider the material, plate thickness, and shape according to your application. If you have previously considered and abandoned a project, please feel free to consult with us, and we will consider conducting a test trial. 【Case Study (1) Overview】 ■ Processing Method: Etching ■ Material: SUS304-HTA ■ Plate Thickness: 0.03mm ■ Residual Width Dimensions: 0.012mm to 0.020mm *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract

Hirai Precision Industry specializes in etching processing and also offers machining services such as fiber laser processing and wire electrical discharge machining. We propose processing methods that can meet customer requests and usage purposes. Even for shapes and precision that cannot be achieved with a single processing method, our strength lies in combining etching processing with fiber laser processing and wire processing to aim for the realization of customer projects. 【Advantages of Etching Processing】 ■ Suitable for fine processing of intricate shapes with a thickness of 1.0mm or less ■ Potential cost benefits as the quantity increases ■ Capable of handling everything from single prototypes to mass production of tens of thousands ■ No burrs generated in the thickness direction ■ Less distortion compared to machining ■ Minimal price fluctuations *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract

What do we call a plate with protrusions formed on its surface? There are various names such as protrusion plate, convex plate, and dowel plate, but there doesn't seem to be a clear common name. At Hirai Precision Industry, we sometimes receive requests for metal processing of these protrusion plates, convex plates, and dowel plates. The formation of protrusion plates, convex plates, and dowel plates through etching processing has its advantages and disadvantages. We will consider as much as possible according to your desired specifications. 【Advantages of Etching Processing】 - Masking is done, and then a corrosive solution is sprayed onto the metal to dissolve it. - It can accommodate requests for thin plates, large processing areas, and high quantities. - As it is a chemical processing method, it does not apply pressure or heat compared to cutting processing. - It can minimize the impact on the base material as much as possible. *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract

Hirai Precision Industry is a manufacturer that specializes in etching processing. By performing corrosion (etching processing) from both sides of metal plates, we can create shapes such as porous (mesh, filters) and slits, allowing the metal plates to be penetrated as requested. In contrast, by performing corrosion (etching processing) from only one side of the metal plates, we can create step shapes in the thickness direction partially. This processing method is referred to as half-etching. 【Half-Etching Processing Method】 ■ Transfer the shape to be etched on one side, and transfer the shape to prevent etching on the reverse side. ■ Etching progresses from only one side, allowing for processing of the metal while remaining unpenetrated. *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract

Hirai Precision Industry is a manufacturer specializing in etching processing. By performing corrosion (etching processing) from only one side of metal sheets, it is possible to create shapes that appear to have partially carved steps. This processing method is called half-etching. At Hirai Precision Industry, we utilize this half-etching process to achieve shapes such as half-groove processing, separators, and flow paths. 【Features】 ■ Shapes that include half-etching are less likely to warp or bend. ■ It is also possible to create flow path shapes with partially opened conductive holes. ■ Processing can be achieved even with different groove shapes and flow path designs on each side. ■ It is possible to perform groove processing using half-etching on materials provided by clients. ■ Using half-etching, we can also incorporate engravings (lettering) and two-dimensional codes. *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract

Power semiconductors (power devices) refer to semiconductors capable of handling large currents and high voltages. Our company primarily collaborates in the support and fixation of power semiconductor (power device) chips through lead frames and their heat sinks, as well as in the production processes using jigs and metal masks. In lead frames, we possess a variety of materials ranging from pure copper to copper alloys (such as TAMAC and KFC), and we are capable of etching processing. 【Features】 ■ In lead frames, we have a variety of materials ranging from pure copper to copper alloys (such as TAMAC and KFC), and we are capable of etching processing. ■ For heat sinks, we can handle thick copper through precision machining by Hirai Precision Industry (fiber laser processing and wire electrical discharge machining). *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract

At Hirai Precision Industry, we assist with the patterning of heaters (heating elements) using our core etching processing technology. We often receive inquiries about various types of heaters, but among them, we frequently assist with planar heaters. Depending on the coating material, they can be freely bent, and installation on curved surfaces is also possible. Additionally, by patterning thin heating elements into arbitrary shapes, we can achieve rapid heating and cooling responses as well as temperature control. **Features of Planar Heaters (Heating Elements)** - Used in various locations due to their flexibility and customizable shapes. - Can be freely bent depending on the coating material. - Installation on curved surfaces is possible. - Rapid heating, cooling, and temperature control can be achieved by patterning thin heating elements into arbitrary shapes. *For more details, please refer to the PDF document or feel free to contact us.*

• Processing Contract

The motor core is a component that corresponds to the iron core part of the rotor (rotating part) and stator (stationary part) that make up a motor. For example, more than 50 motors are used in a single automobile. At Hirai Precision Industry, we can offer manufacturing of motor cores through etching and machining processes. The etching process is characterized by the absence of burrs in the thickness direction of the processed motor core itself. 【About the processing methods】 ■ Etching process - The absence of burrs in the thickness direction of the processed motor core itself is a feature. - Electrical steel sheets have an insulating film on both sides, and processing can be done while leaving this insulating film intact on both sides. ■ Machining process - Options for laser processing and wire processing are available. *For more details, please refer to the PDF materials or feel free to contact us.

• Processing Contract

Hirai Precision Industry sometimes assists in the production of metal files using etching processing. By utilizing etching processing, we can create original designs of files according to customer requests. Our etching process involves corroding metal to form shapes. We apply resist (masking material) to areas where we want to retain protrusions, while exposing the metal surface in areas where we want to create indentations. By applying etching solution, we can reproduce the unevenness of the file. 【Features of Etched Metal Files】 ■ Capable of reproducing unevenness ■ Protruding shapes: Various patterns such as "round," "triangle," "square," "star," etc., can be created ■ Protruding shapes: By partially changing the size, it is also possible to create gradations ■ Depth (depth) of indentations can be adjusted according to the intended use ■ We can assist from the drawing stage *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract

At Hirai Precision Industries, we sometimes manufacture encoders using our specialty etching process. An encoder is a sensor that encodes rotational angles or linear displacements and is used in devices that convert analog signals into digital signals. They are used in equipment that requires high precision and rapid operation, and are installed in assembly robots, welding robots, conveyors, machining centers, and more. With etching processing, we can customize the outer dimensions, slit widths, angles, and other aspects of the encoder according to your desired design. **Advantages of Manufacturing with Etching Processing** ■ Hirai Precision Industries' etching process allows for manufacturing with minimal warping and distortion, as it involves corroding the metal. ■ We can provide a consistent service that includes surface treatment, such as blackening, after the etching process. *For more details, please refer to the PDF document or feel free to contact us.*

• Processing Contract

I would like to introduce the benefits that customers feel regarding the etching processing by Hirai Precision Industry, which leads them to place orders. We can process metal sheets with a thickness ranging from 0.005mm for thin sheets to about 2mm for thicker sheets. Since it is a chemical processing technology that does not apply heat or force, we can deliver products without deformation or distortion, and there will be no burrs in the thickness direction. Furthermore, the more complex the shape, the more we can provide advantages in delivery time and cost compared to other metal processing methods. 【In the following situations】 ■ When the thickness of the metal sheet to be processed is thin ■ When you want to avoid burrs in the thickness direction (Z direction) ■ When you want to manufacture complex and fine shapes ■ When you want to mass-produce fine parts ■ When you want to procure prototypes quickly and cheaply *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract

Materials that have a mirror-like finish on their metal surfaces are referred to as mirror materials. The small irregularities on the surface of metal materials are removed through polishing, resulting in a flat state with no irregularities, which is the mirror finish. The absence of irregularities on the metal surface gives it a finish that resembles a mirror. At our company, we can create the desired shapes from metal that maintains this mirror finish through etching processing. It is also possible to obtain mirror materials within Hirai Precision Industry, but we can also process only the etching if you provide the specified materials. 【Features of Etching Processing】 ■ Since the mirror material is processed while covered with a protective film called resist, there are no scratches or burn marks. ■ As the processing involves dissolving the metal with a chemical solution, there are no burrs in the thickness direction. *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract

Hirai Precision Industries' etching process uses a film or glass plate known as a master plate for processing. Therefore, even if the requested size of the design drawn on the plate is a small shape, it is possible to carry out the processing. Taking advantage of that feature, there are also requests to intentionally create metal foreign objects (contaminants). This serves the purpose of evaluating the removal of foreign objects that may occur during manufacturing. [Case Overview] ■ Product Shape: Individual numbers from 0 to 9 ■ Material: SUS304-CSP-H ■ Plate Thickness: 0.01t ■ Minimum Residual Width: 0.05mm ■ Minimum Cutting Width: 0.05mm ■ Comparison Object: 0.5mm wide mechanical pencil lead *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract

Hirai Precision Industry is a metal processing manufacturer specializing in etching processing. Etching processing uses chemical solutions to dissolve metal and create the necessary shapes. When metal is dissolved during this etching process, a protrusion can form at the center of the cross-section. This is referred to as a "taper." Utilizing this unique "taper" from the etching process, our company assists in various items across different industries. [Types] ■ Front and back difference taper ■ Step taper ■ Indentation taper ■ Protrusion taper *For more details, please refer to the PDF materials or feel free to contact us.

• Processing Contract

A rich lineup of metal materials (including variations in thickness) is one of the advantages of Hirai Precision Industry. We have established a system to meet various needs, and by utilizing our etching processing technology, we can customize the thickness of the base material freely. Thickness adjustment through etching processing can be done at a lower cost compared to creating the base material from scratch. **Advantages of thickness adjustment processing with etching solution:** - **Cost-effective production:** It is possible to respond at a lower cost compared to creating the base material from scratch. - **Short delivery times:** The delivery time for thickness adjustment processing can typically be accommodated with an additional few days on top of the usual etching processing lead time. - **Small lot production:** There is no need to specify a minimum production quantity; we can accommodate orders starting from just one piece. *For more details, please refer to the PDF materials or feel free to contact us.*

• Processing Contract

Hirai Precision Industry has been involved with the food industry through a wide variety of etched meshes. A product we would like to strongly recommend along with the etched mesh is the "stainless steel packing" from TOKi Engineering Co., Ltd. It is also possible to combine the stainless steel packing with our etching processing. The "stainless steel packing filter" is a product realized through collaboration between the company and Hirai Precision Industry. 【Features of the Stainless Steel Packing Filter】 ■ The hole diameter and layout design of the filter section are produced using our etching processing and fiber laser processing. ■ It is possible to create original designs. ■ The filter section can be designed freely within our processing conditions. ■ It achieves the avoidance of foreign matter contamination and improved cleanability. *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract

We are performing etching processing on materials that consist of 1.0mm thick copper (Cu) bonded with glass epoxy resin from one side. Hirai Precision Industry has a track record of processing up to 2.0mm thick copper. While copper (Cu) is the mainstream material, aluminum (AL) is also possible. For the insulating layer, we have experience with materials other than glass epoxy resin, including ceramics (aluminum nitride substrates, silicon nitride substrates, etc.), polyimide, and PET film. We often receive materials supplied by customers for etching processing. 【About Etching Processing】 - In addition to printed resist, we employ a photo-etching process for improvements. - This allows for finer finishes and enhanced linearity. - The dimensions of the tapered section of the cross-section can be kept to less than half the thickness of the plate. *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract

We assist with the application of back tape for lead frames as a primary example of our adhesive processing. In general adhesive processing, the bonding of the same material is common, but by incorporating a polyimide adhesive layer, it is possible to bond dissimilar materials with heat resistance. We also offer suggestions for materials tailored to your specific applications. Additionally, we will check the availability of various tapes, PI films, Teflon sheets, etc., so please feel free to consult with us. 【Benefits of Adhesive Processing】 ■ It is possible to bond dissimilar materials with their respective characteristics: - SUS430 material → imparts magnetism - Cu material → conductivity and heat dissipation - Ti material → corrosion resistance - Ni alloy material → thermal expansion coefficient similar to glass, etc. *For more details, please refer to the related links or feel free to contact us.

• Processing Contract
• Other metal materials

At Hirai Precision Industries, we can easily accommodate processing of copper (Cu) through our etching services. In addition to etching, copper processing includes various methods such as cutting, machining, and bending, and we have a rich inventory of copper alloy materials. Furthermore, our etching services are not limited to copper; we can process a variety of materials, so please feel free to contact us when you need assistance. 【Characteristics of Copper】 ■ High electrical conductivity ■ High thermal conductivity ■ Excellent machinability ■ Sensitive to heat ■ High corrosion resistance *For more details, please refer to the related links or feel free to contact us.

• Processing Contract

Our "metal etching processing" can achieve short delivery times and high-quality processing without burrs. It has minimal warping and distortion, and can accommodate small lots to mass production. Compared to molds, the initial costs are low, and the maximum processing size is 900×1,200mm with a thickness range of 5μm to 3mm. We can handle various metals such as stainless steel, copper, nickel, titanium, and aluminum. 【Features】 ■ Can process with short delivery times, high quality, and no burrs ■ Minimal warping and distortion, capable of small lots to mass production ■ Lower initial costs compared to molds ■ Maximum processing size is 900×1,200mm ■ Thickness can range from 5μm to 3mm *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract
• Surface treatment contract service

Our company's "machining, laser processing, and joining/welding processing" has achieved a 3D structure through etching + diffusion bonding/thermal pressing. We offer step processing and the formation of irregular shapes through composite processing that combines laser, wire, and machining. We have also newly accommodated composite processing of etched mesh and YAG welding, enabling cutting, engraving, and drilling of metals, non-ferrous metals, and ceramics. 【Features】 ■ Achieves 3D structure with etching + diffusion bonding/thermal pressing ■ Newly accommodates composite processing of etched mesh and YAG welding ■ Step processing and formation of irregular shapes through composite processing combining laser, wire, and machining ■ Capable of cutting, engraving, and drilling of metals, non-ferrous metals, and ceramics ■ Supports additional processing on finished products and laser marking *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract
• Surface treatment contract service

Our "surface treatment processing" offers short delivery times and high quality. We can accommodate partial plating processing and can provide plating for supplied materials. We propose various surface treatments such as "electropolishing," "blackening," and "matte processing," depending on the application and purpose. Applications include light-shielding plates for lead frames, bus bars, terminals, heat sinks, and optical components like cameras. 【Features】 ■ Short delivery times and high quality ■ Capable of partial plating processing ■ Can provide plating for supplied materials *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract
• Surface treatment contract service

Our company's "substrate etching and lamination processing" can accommodate single-sided processing up to approximately 2.0mm. In composite processing, the taper of the cross-section is suppressed. Irregular shapes can also be reproduced. The thickness of the material can be increased further (consultation required). 【Processing Capabilities】 ■ Single-sided etching ■ Double-sided etching ■ Composite processing etching + α *For more details, please refer to the PDF document or feel free to contact us.

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Our company specializes in "metal press processing." We handle products such as connectors for mobile phones, PCs, and music devices, as well as automotive connectors and parts. The mold sizes range from single-stroke to progressive up to 1,500mm, and the thickness of materials that can be processed is from 0.05 to 5.00mm (with stainless steel achievements). 【Equipment Owned (Excerpt)】 ■ Digital Electric Servo Press ■ Straddle Side Press ■ C-Frame Press ■ Automatic Appearance Camera Inspection System ■ 5-Tank Automatic Cleaning Machine *For more details, please refer to the PDF document or feel free to contact us.

• Press Dies
• Processing Contract

"Etching processing" involves applying corrosion protection treatment through masking, followed by the removal of unnecessary parts using a corrosive solution. This processing method is suitable for ultra-precision requirements that cannot be achieved with press punching, allowing for the production of extremely small, thin, and complex-shaped products. Additionally, "photo etching processing" is a precision processing technology that combines etching processing techniques with precise photographic and imaging technologies. Through the application of precision photography and corrosion processing, it demonstrates high processing accuracy for extremely small parts, ultra-thin products, and complex components in electronics products. [Processing Steps (Excerpt)] ■ Pattern Drawing ■ Pre-treatment (Surface Smoothing, Degreasing) ■ Resist ■ Exposure *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract
• Etching Equipment

Hirai Precision Industry Co., Ltd. is a company that manufactures photo-etched products, machined products, plated products, ceramic substrates, and more. The unique processing technology that has been cultivated over many years is active in the manufacturing sites of various fields such as semiconductors, LEDs, automobiles, and medical devices. In recent years, we have not only challenged the field of metal processing but also ventured into non-metal areas, aiming to be a one-stop manufacturer that can consistently meet all customer needs. 【Business Activities】 ■ Etching processing ■ Surface treatment processing ■ Machining ■ Ceramic processing ■ Adhesive processing *For more details, please refer to our catalog. Feel free to contact us as well.

• Other semiconductor manufacturing equipment
• others
• Processing Contract

The "Etching Filter" is a filter made using a photochemical etching method that has high strength and is less likely to become a foreign object due to disconnection. Compared to conventional woven filters, it has 370% greater strength and 50% better elongation. Since there are no overlaps in the woven lines, it prevents foreign objects from getting caught and excels in hygiene. It is also possible to select materials with excellent corrosion resistance, and free design is available for thickness, outer shape, and mesh size. 【Features】 ■ Does not allow for opening (foreign object contamination prevention) ■ Less likely to become a foreign object due to disconnection (foreign object contamination prevention) ■ Capable of creating fine shapes (foreign object contamination prevention) ■ No overlaps in lines, preventing foreign objects from getting caught (hygiene management) ■ No fraying at the outer edge (improved productivity) *For details, please request materials or view the PDF data from the download.

• filter

At Hirai Precision Industry Co., Ltd., we have established a consistent production system that includes partial plating, chemical polishing, black dyeing, and blasting processes to enhance the quality of our etched products. This integrated system allows us to perform surface treatments accurately and quickly. We also cater to various requests, from small lots of prototypes to larger orders. For any surface treatment products, please feel free to entrust us with your needs. 【Features】 ■ The integrated system enables us to enhance product quality accurately and swiftly. ■ We accommodate small lots and diverse needs. *For more details, please refer to our catalog or feel free to contact us.

• others

Ceramic processing is a processing technology that uses glass-ceramic substrates with a thermal expansion coefficient close to that of silicon. Glass-ceramic substrates can be fired at temperatures below 1000°C, allowing the use of Ag, AgPd, and Au as internal conductors. Additionally, since the dielectric constant is lower than that of alumina substrates, signal delay is also minimized. The thermal expansion coefficient being close to that of silicon makes direct die bonding and flip chip (FC) connections to the substrate easier. 【Features】 - Advantageous for miniaturization of modules - Direct die bonding and flip chip (FC) connections to the substrate are easy *For more details, please refer to the catalog or feel free to contact us.

• others

Hirai Precision Industry Co., Ltd. offers adhesive processing and machining that can accommodate semiconductor package components as part of composite processing. Among these, machining is a processing technology capable of addressing areas that cannot be covered by etching processing. By introducing CO2 laser processing machines and wire electrical discharge machines, we have made it possible to cut and drill metals, plastics, ceramics, and other materials that are impossible to process with etching. Additionally, we can perform processing that combines etching with laser and wire electrical discharge, as well as reprocessing of ready-made products, providing a wide range of applications. [Features] ■ Processing that was impossible with etching is now possible ■ Wide range of applications *For more details, please refer to our catalog or feel free to contact us.

• others

Etching processing is a precision machining technology that allows for the rapid production of complex and intricate shapes with micron-level accuracy without the use of molds, through a combination of optical and chemical techniques. Our etched products are used in various fields, including semiconductor manufacturing equipment, various medical devices, and various electronic components. We cater to a wide range of needs, from small lot production to full-scale production of one million units. 【Features】 ■ Easy processing of hard metals ■ No occurrence of distortion or burrs ■ Capable of producing complex and intricate shapes with high precision and in a short time without using molds ■ Compatible with various shapes and materials *For more details, please refer to our catalog or feel free to contact us.

• others