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The rubber tip for K&S wire bonders is a contact-type consumable mounted at the end of the clamp arm, designed to make direct contact with the surface of the lead frame or substrate. Its primary functions are to provide the friction necessary to prevent the workpiece from sliding horizontally during the bonding process and to cushion the downward impact of the clamp arm, thereby avoiding damage to the chip or brittle substrate. Typically made of high-temperature-resistant silicone or polyurethane, these tips are prone to hardening, wear, or contamination over time—issues that can lead to excessive indentation marks or bond displacement—necessitating regular inspection and replacement as they are high-frequency wear parts. 
