FLUX-COATED BALL AND METHOD FOR MANUFACTURING SAME
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United States of America Patent
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Issued Date -
Aug 10, 2023
app pub date -
Feb 6, 2023
filing date -
Feb 9, 2022
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Abstract
The present invention employs a flux-coated ball 100 having a core part 110 and a shell part 120 with which the core part 110 is coated. The flux-coated ball 100 is characterized in that the core part 110 is made of a solder ball or a copper core ball, that the shell part 120 is made of a flux layer containing at least one selected from the group consisting of an activator and a resin component, and that an oxide film thickness in the flux-coated ball 100 is 3 nm or less.
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