High strength and high elongation ratio of Au alloy bonding wire

To acquire the best combination of elongation and breaking strength on the Au alloy bonding wire. Adding 0.5-30 wt% of at least one element among Cu, Ag, Pd and Pt to high purity Au, a flat area about elongation ratio change appears between the range of 450-650 DEG C of heat-treatment temperature at...

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1. Verfasser:	MIKAMI, MICHITAKA
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ALLOYS BASIC ELECTRIC ELEMENTS CHEMISTRY ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY FERROUS OR NON-FERROUS ALLOYS METALLURGY SEMICONDUCTOR DEVICES TREATMENT OF ALLOYS OR NON-FERROUS METALS
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creator	MIKAMI, MICHITAKA
description	To acquire the best combination of elongation and breaking strength on the Au alloy bonding wire. Adding 0.5-30 wt% of at least one element among Cu, Ag, Pd and Pt to high purity Au, a flat area about elongation ratio change appears between the range of 450-650 DEG C of heat-treatment temperature at wire drawing. Though the wire strength becomes decrease at this range of temperature, the strength is maintained at higher level against the heat treatment temperature of a standard elongation ratio of 4 % of high purity Au alloy wire. Therefore, by the heat treatment of this flat range, Au alloy bonding wire, which has certain level of strength regardless of the temperature change, is acquired. Moreover, by selecting appropriate temperature range, different strength characteristics wires corresponding to the elongation ratio are acquired.
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Adding 0.5-30 wt% of at least one element among Cu, Ag, Pd and Pt to high purity Au, a flat area about elongation ratio change appears between the range of 450-650 DEG C of heat-treatment temperature at wire drawing. Though the wire strength becomes decrease at this range of temperature, the strength is maintained at higher level against the heat treatment temperature of a standard elongation ratio of 4 % of high purity Au alloy wire. Therefore, by the heat treatment of this flat range, Au alloy bonding wire, which has certain level of strength regardless of the temperature change, is acquired. Moreover, by selecting appropriate temperature range, different strength characteristics wires corresponding to the elongation ratio are acquired.</abstract><oa>free_for_read</oa></addata></record>
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subjects	ALLOYS BASIC ELECTRIC ELEMENTS CHEMISTRY ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY FERROUS OR NON-FERROUS ALLOYS METALLURGY SEMICONDUCTOR DEVICES TREATMENT OF ALLOYS OR NON-FERROUS METALS
title	High strength and high elongation ratio of Au alloy bonding wire
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