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Fabrication of 50.0 μm Ultra-Fine Pure Rhodium Wire, Using a Multi-Pass Wire Drawing Process, for Probe Card Pins

Extreme Fabrication Technology Group, Korea Institute of Industrial Technology, 320 Techno sunhwan-ro, Yuga-up, Dalseong-gun, Daegu 42994, Korea
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Materials 2019, 12(13), 2194; https://doi.org/10.3390/ma12132194
Received: 28 May 2019 / Revised: 3 July 2019 / Accepted: 3 July 2019 / Published: 8 July 2019
(This article belongs to the Section Manufacturing Processes and Systems)
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Abstract

Rhodium is a rare material that is widely used in electrical and electronic components due to its excellent mechanical and electrical properties. Ultra-fine rhodium wires in particular are widely used in electronic components. In this study, a multi-pass wire drawing process was designed to fabricate ultra-fine pure rhodium wire with a diameter of 50.0 µm from an initial diameter of 80.0 µm, which is used as probe card pins. An elastic–plastic finite element (FE) analysis was performed to validate the pass schedule that was designed for this study. A fine wire drawing experiment was also carried out to verify the effectiveness of the designed process. As a result, the ultra-fine rhodium wire was fabricated using the design process without wire breaks and the diameter of the final drawn wire was 47.80 µm. View Full-Text
Keywords: multi-pass wire drawing process; process design; ultra-fine pure rhodium wire; probe card pin multi-pass wire drawing process; process design; ultra-fine pure rhodium wire; probe card pin
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Lee, S.-K.; Lee, I.-K.; Lee, S.-Y.; Hwang, S.-K. Fabrication of 50.0 μm Ultra-Fine Pure Rhodium Wire, Using a Multi-Pass Wire Drawing Process, for Probe Card Pins. Materials 2019, 12, 2194.

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