METHOD FOR MEASURING THE HEIGHTS OF WIRE INTERCONNECTIONS

A height of a vertical wire interconnection bonded onto a substrate is measured by first capturing a top view of the vertical wire interconnection and identifying a position of a tip end of the vertical wire interconnection from the top view. A conductive probe is located over the tip end of the ver...

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Bibliographische Detailangaben
Hauptverfasser: PARK, Chi Kwan, GOH, Mow Huat, SONG, Keng Yew, HUANG, Jiang, ZHU, Ya Ping
Format: Patent
Sprache:eng
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Zusammenfassung:A height of a vertical wire interconnection bonded onto a substrate is measured by first capturing a top view of the vertical wire interconnection and identifying a position of a tip end of the vertical wire interconnection from the top view. A conductive probe is located over the tip end of the vertical wire interconnection, and is lowered towards the vertical wire interconnection until an electrical connection is made between the conductive probe and the tip end of the vertical wire interconnection. A contact height at which the electrical connection is made may thus be determined, wherein the contact height corresponds to the height of the vertical wire interconnection.