Supports manufacturing with precision of +0, -0.005mm (5μm) in outer diameter grinding processing. Centerless finishing of free-cutting phosphor bronze round bars.
Contact probes are fine contact components used to evaluate the electrical performance (conductivity, current, functionality, aging, etc.) of chips and wafers. They are essential for quality assurance before product shipment and for the early detection of defects, and their measurement accuracy and contact stability are directly linked to product yield and quality. Recently, with the miniaturization and high integration of semiconductors, there is a demand for even higher performance in probes. Specifically, this involves fine pitch and miniaturization. Stable material precision is essential, especially for fine and high-precision machining. By finishing the outer diameter of free-cutting phosphor bronze round bars, which are cold-drawn materials, it is possible to process them into ultra-high precision materials with an outer diameter tolerance of within 0.005 mm (5 μm). Additionally, high-precision outer diameter grinding typically takes significantly longer than usual. At Shinwa Shoji, we consider this lead time issue as an important procurement method to prevent our customers' production lines from stopping, by combining "manufacturing procurement" and "inventory provision" rather than just material purchasing. We aim to assist in procurement to collaboratively create products with our customers. Please feel free to contact us regarding this matter.
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basic information
Fujii Manufacturing Co., Ltd. Free-cutting phosphor bronze round bar C5441B-H Φ1.0 (+0, -0.005 mm) × 2000 mm
Price information
Please contact us individually. Test pieces are available for sale.
Delivery Time
Applications/Examples of results
Contact probe pin components (high strength, stable contact resistance, high elasticity)
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Company information
Our company has been a primary wholesaler specializing in unique non-ferrous metals, such as [phosphor bronze bars, nickel silver bars, and beryllium copper bars], since our founding in 1964. Since our establishment, we have always worked with a spirit of gratitude and challenge under the management philosophy of "coexistence and mutual prosperity." By maintaining a sense of gratitude, our actions and responses change. As a result, we believe we can grow into a company that earns the trust of everyone and society. Moreover, challenges often come with anxiety, but as the saying goes, "it's easier to give birth than to worry," taking that first step often leads to better outcomes than expected. We aim to continue challenging ourselves with a broad perspective and knowledge. While cherishing the core values of gratitude and challenge that are the foundation of Shinwa Shoji Co., Ltd., we will work together as a company to advance in the wholesale business. We look forward to a long-lasting relationship with you. 【Trading Manufacturers】 ■ Fujii Seisakusho Co., Ltd. (Major trading manufacturer) ■ NGK Insulators, Ltd. (Major trading manufacturer) ■ Oki Shindou Kogyo Co., Ltd.
