OFF SUBSTRATE KINKING OF BOND WIRE

摘要

An electrically conductive lead is formed using a bonding tool. After bonding the wire to a metal surface and extending a length of the wire beyond the bonding tool, the wire is clamped. Movement of the bonding tool imparts a kink to the wire at a location where the wire is fully separated from any metal element other than the bonding tool. A forming element, e.g., an edge or a blade skirt provided at an exterior surface of the bonding tool can help kink the wire. Tensioning the wire using the bonding tool causes the wire to break and define an end. The lead then extends from the metal surface to the end.

主权项

1. A method of forming an electrically conductive lead of a component, comprising:
a) using a bonding tool to bond a wire extending beyond a surface of a bonding tool to a metal surface; b) drawing the bonding tool away from the metal surface while allowing the wire to extend farther from the surface of the bonding tool; c) clamping the wire to limit further extension of the wire beyond the surface of the bonding tool; d) moving the bonding tool while the wire remains clamped such that the bonding tool imparts a kink to the wire at a location where the wire is fully separated from any metal element other than the bonding tool; and e) tensioning the wire using the bonding tool such that the wire breaks at the kink to define an end, wherein the lead comprises the wire extending from the metal surface to the end.