METHOD OF MANUFACTURING SHEET MATERIAL MADE OF COPPER-SILVER ALLOY AND METHOD OF MANUFATURING SHEET FOR ELECTRODE OF PROBE CARD
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United States of America
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Issued Date -
Apr 3, 2025
app pub date -
Oct 31, 2024
filing date -
Oct 31, 2024
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Abstract
A method of manufacturing sheet material made of copper-silver alloy, the method comprising the steps of: (a) casting continuously copper-silver alloy so as to obtain base material having a thickness or diameter within a range of 6 to 30 mm; (b) rolling the base material at least once so as to obtain sheet material having a thickness within a range of 0.01 to 0.10 mm; and (c) annealing the sheet material, wherein the sheet material having undergone operation in the step (c) has a Vickers hardness of 280 HV or higher.
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