Method and device for making a metal bump with an increased height
A device for making metal bumps includes a hard conical tubular member having a vertical conical passage at an upper portion thereof, a bell shaped chamber at a lower portion thereof which is larger than the vertical conical passage in diameter, located under and communicated with the vertical conic...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | A device for making metal bumps includes a hard conical tubular member having a vertical conical passage at an upper portion thereof, a bell shaped chamber at a lower portion thereof which is larger than the vertical conical passage in diameter, located under and communicated with the vertical conical passage, and a circular recess which is larger than the bell shaped chamber in diameter, located under and communicated with the bell shaped chamber, thereby forming a capillary tube with a surface. |
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