Method for forming pin-form wires and the like

A method for forming pin-form wires or bumps on, for instance, an electrode pad of an electronic circuit element, in which a ball is formed on a tip end of a wire that passes through a capillary, the wire is then extended from the lower end of the capillary, a notch is formed in the portion of the w...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: KATO FUMIHIKO, KOMACHI YASUYUKI, SUGIURA KAZUO, MOROE HIROFUMI
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A method for forming pin-form wires or bumps on, for instance, an electrode pad of an electronic circuit element, in which a ball is formed on a tip end of a wire that passes through a capillary, the wire is then extended from the lower end of the capillary, a notch is formed in the portion of the wire between the ball and the capillary by a cutter, the ball is bonded to the electrode pad using the capillary, and the capillary is raised, thus pulling the wire and cutting the wire at the notch to form a pin-form wire or bump on the electrode pad.