姫路東芝電子部品 List of Products and Services

We will introduce a case study of precision machined parts used in precision press processing punch molds. The outer dimensions are elongated at 15mm × 120mm × 450mm, and a square hole for incorporating core components has been machined. Due to the elongated shape of this mold part, it is common for elongation to occur during the square hole machining process, which tends to worsen dimensional accuracy. However, by numerically setting the amount of elongation for the square hole, we have achieved high-precision machining that keeps the square hole size and pitch within ±0.005mm. 【Case Study】 ■ Product: Punch mold parts for precision press processing ■ Industry: Semiconductor ■ Machining Classification: Wire Electrical Discharge Machining ■ Machining Accuracy: ±0.005mm ■ Material: SKD ■ Dimensions: 15mm × 120mm × 450mm *For more details, please refer to the PDF document or feel free to contact us.

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• Other electronic parts

This is an introduction to a case study of heat sink manufacturing primarily used in IC (integrated circuit) semiconductors. The heat sink is bonded to the lead frame, enhancing the heat dissipation performance of the package. The material of this heat sink is a Cu alloy, with a thickness of 1.0mm or more selected to improve heat dissipation characteristics. The processing precision of the punched parts is ±0.03mm, which is highly accurate. 【Case Study】 ■Product Category: Heat Sink ■Industry: Semiconductor Industry ■Processing Category: Press, Punching, Forming ■Precision: ±0.03mm (punched parts) ■Material: Cu Alloy *For more details, please refer to the PDF document or feel free to contact us.

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• Other electronic parts

This is a case study of the production of a base housing for HDDs that requires high precision and complex surface contours. The material used for the housing is iron (SPC) with a thickness of 0.6mm. To perform high-precision punching, drawing, and press forming, it is necessary to design and manufacture highly accurate press molds. Although it is a precision pressed product with a complex shape, the processing accuracy is maintained at ±0.015mm by using high-precision press molds. 【Case Study】 ■ Product: HDD Base Housing ■ Industry: Electrical Equipment ■ Processing Classification: Punching, Drawing, Forming ■ Processing Accuracy: ±0.015mm ■ Material: Iron (SPC) ■ Dimensions: 20mm × 55mm × 3mm (H) *For more details, please refer to the PDF document or feel free to contact us.

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• Other electronic parts

This is an introduction to a case study on the production of electromagnetic wave shield frame components used in mobile phones. The material for the shield frame is a 0.2mm thick brass (C7521) sheet. By attaching a shield cover to the shield frame (the main component) fixed by solder reflow, it is possible to shield the electromagnetic waves generated from the built-in circuit board. 【Case Study】 ■ Product: Shield frame for mobile phones ■ Industry: Electrical equipment ■ Processing classification: Pressing, punching, bending ■ Accuracy: ±0.03mm ■ Material: Brass ■ Dimensions: 40mm × 45mm × 1.5mm (H) *For more details, please refer to the PDF document or feel free to contact us.

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• Other electronic parts

We will introduce a case study of the production of precision connector terminal components with complex shapes. The material of the connector terminals is copper alloy, and generally, a thickness of 0.1 to 0.2 mm is commonly used. Since these are precision stamped parts used in electronic devices, the stamping molds themselves must also have a finely crafted and precise structure, allowing for the production of high-quality connector terminals. 【Case Study】 ■ Product Classification: Contacts, Connectors, Terminals ■ Industry: Electrical Equipment Industry ■ Processing Classification: Stamping, Punching, Bending ■ Processing Accuracy: ±0.02 mm (punched area) ■ Material: Copper Alloy *For more details, please refer to the PDF document or feel free to contact us.

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• Connector Terminal Block

Here is an introduction to a case study on the production of lead frames used in discrete (individual) semiconductor small signal packages. The materials for the lead frames are mainly Cu alloys and 42 Alloy, with thicknesses ranging from 0.08 to 0.2 mm. The punching parts achieve a processing accuracy of ±0.02 mm, resulting in high-quality lead frames. 【Case Study】 ■ Product: Lead frame for small signal transistors ■ Industry: Semiconductor ■ Processing Classification: Press, punching, bending ■ Accuracy: ±0.02 mm (punching parts) ■ Material: Cu alloy, 42 Alloy *For more details, please refer to the PDF document or feel free to contact us.

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In the design and development stage of press molds, which influence the price, accuracy, and quality of precision press-processed products, considerations for improving the maintenance and release properties of the molds must also be taken into account. Precision press molds wear down over time, leading to a decrease in accuracy. Using molds with reduced accuracy naturally results in variations in the quality of the press-processed products. When quality variations occur, they can lead to significant losses during the inspection process, and if issues arise with the press molds, it can affect the entire production line. By reflecting these considerations in the mold design drawings, such troubles can be prevented in advance. [Examples] - Prevention of punch breakage during mold maintenance - Reduction of design losses through volume confirmation of resin molding sections - Shortening of lead time by eliminating flange shapes in clamp fixing components - Countermeasures for unfilled thermosetting mold molds - Prevention of product drop during product pickup using knockouts - Reduction of work time through mold design focused on maintenance ease *For more details, please refer to the PDF materials or feel free to contact us.

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The quality of precision press-processed products greatly varies depending on the quality of the press molds. The molds for thin sheets and fine precision press products must have a sophisticated structure to enhance product accuracy. While measures taken during mold processing are certainly important for improving the quality of press molds, the most crucial measures are those taken during the design phase. Furthermore, by conducting various analyses such as structural analysis, flow analysis, and stress analysis based on a reasonable press mold design, it becomes possible to manufacture precision press molds with higher accuracy and quality. [Examples] - Strength enhancement of separation cutting type press mold dies - Measures against resin overflow in resin sealing molds - Damage prevention for comb tooth punches used in precision fine molds - Measures against dents during the extraction process of die molds - Laminating molding methods for secondary batteries - Improvement of mold frame bite issues, etc. *For more details, please refer to the PDF materials or feel free to contact us.

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The production of precision press-processed products always requires molds. These precision press molds account for a significant portion of the initial costs, and reducing mold costs can have a substantial impact. Additionally, by changing the mold structure, applying surface treatments such as plating, or switching to high-hardness materials, the lifespan of the molds can be extended, thereby reducing maintenance costs. These cost reductions can be achieved by considering them during the design phase of the press molds. [Examples] - Case of reducing processing steps through changes in press mold design - Reduction of mold costs by revising punching shapes - Cost reduction through mold splitting for derived product varieties - Cost reduction in mold manufacturing through optimal design proposals - Wear prevention and improvement of lifespan and quality through appropriate materials and surface treatments - Reduction in maintenance frequency by minimizing wear during punching operations in press molds *For more details, please refer to the PDF materials or feel free to contact us.

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Our company manufactures precision stamped products for cutting-edge technology fields, including the semiconductor industry, automotive and in-vehicle applications, as well as electronic and electrical devices, and optical equipment. In these fields, technological innovation is constantly required, and high precision in precision stamped products is essential. Therefore, how to improve quality and enhance value is an important theme. Additionally, for precision stamped products aimed at the semiconductor sector, factors beyond "precision," such as insertability, adhesion, and bonding strength, must also be improved. We provide proposals to achieve optimal quality by considering the application and usage environment. [Examples] - Modification of the die shape to prevent scrap lifting - Improvement of insertability for substrate-inserted terminals - Enhancement of bonding strength in solder joints - Maximization of flat surfaces by reducing the draw surface in stamping *For more details, please refer to the PDF materials or feel free to contact us.

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To manufacture precision press-processed products with high accuracy and optimal cost, cost-reduction design must be implemented from the design and development stage. In particular, press-processed products produced in mass using progressive dies can achieve significant cost reductions even with small cost-cutting measures. Additionally, while there is the issue of how to reduce costs for precision press-processed products, it is also possible to lower costs by replacing machined products or sheet metal products with press processing. [Examples] ■ Cost reduction by changing from machining to press processing ■ Cost reduction by applying standard plate thickness ■ Manufacturing methods for parts composed of different plate thicknesses ■ Cost reduction through the press processing of etched products ■ Cost reduction by converting the method of functional plating *For more details, please refer to the PDF materials or feel free to contact us.

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Plating treatment for precision press molds is primarily applied to enhance the durability and corrosion resistance of the molds themselves, as well as to facilitate smooth separation between the upper and lower molds during forging. This applies not only to press molds but also to plastic molds, rubber molds, TF molds, cast-forged molds, and extrusion molding dies. If appropriate plating treatment is not applied to press molds, they will experience significant wear, greatly shortening their lifespan. Additionally, to use press molds for a long time with high precision, regular maintenance is also necessary in addition to plating treatment. *For more details, please refer to the PDF document or feel free to contact us.*

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To manufacture precision press-processed products, intricate and high-precision press molds are required. High-precision press molds demand machining at the micron level, and to produce complex and irregularly shaped precision press-processed products, the machining shapes of the press molds also become complex. Additionally, since press molds require high durability, materials with high hardness are often used. There are various types of high-hardness materials, so the machining method must be selected and applied according to the material and shape. *For more details, please refer to the PDF document or feel free to contact us.

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To achieve high-precision precision press processing, molds made from high-precision parts are necessary. As materials for molds, not only common materials like SKD but also special materials such as stainless steel, carbide, tungsten, graphite, chrome, molybdenum, and ceramics are used. The selection of materials is evaluated comprehensively, considering not only the machinability of the materials but also improvements in corrosion resistance, heat resistance, durability, wear resistance, shot count, and thermal conductivity. By utilizing high technical skills in mold design, analysis, selection of optimal processing methods and materials, and measurement of molded products, it is possible to produce high-quality precision press processed products. *For more details, please refer to the PDF document or feel free to contact us.*

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Precision stamped products require thin sheets with fine shapes and high processing accuracy. Additionally, precision stamped products are used in a wide range of fields, including semiconductor equipment, electronic devices, electrical equipment, medical devices, and automotive parts. The applications vary, and the usage environments are diverse, so the required specifications can differ greatly. Therefore, to ensure that precision stamped products can function properly even in harsh environments, we perform plating treatments to enhance and add functionality. *For more details, please refer to the PDF document or feel free to contact us.*

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Among press processing, "precision press processing" at the micron level is widely used not only for consumer equipment and devices but also for industrial applications. Various precision press processing technologies have been developed to suit different applications, and the appropriate processing method is selected based on materials, shapes, and usage environments. In press processing, common methods such as shearing, bending, drawing, and forging are applied, but by using ultra-precision press molds, it is possible to produce high-precision precision press processed products. *For more details, please refer to the PDF materials or feel free to contact us.

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Press processing is a type of plastic processing that shapes materials such as metal into the form of a mold using a processing machine equipped with paired tools called "molds." The base material, such as metal, is sandwiched between the molds, and by applying a large amount of pressure, the material is processed into the intended shape. Press processing, which can form specified shapes with molds, has the characteristic of being able to continuously produce the same item in a short time, making it widely used in automotive parts, in-vehicle components, consumer electronic devices, and internal and mechanical parts of industrial equipment. *For more details, please refer to the PDF document or feel free to contact us.*

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From Himeji Toshiba Electronic Components Co., Ltd., which consistently develops, designs, and manufactures lead frames and mold dies, key components that support conductors, we present the essential "Technical Handbook on Precision Press Processing" for engineers! In addition to basic knowledge of precision press processing and molds, this indispensable book for engineers includes numerous product examples and points for cost reduction in precision press processed products. Don't miss out! 【Contents】 - Plating methods for precision press processed products - Quality improvement of precision press processed products: VE case studies - Product examples of precision press molds and more *If you are interested, please contact us via the inquiry form.

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