发明名称 |
Method and device for controlling the generation of ultrasonic wire bonds |
摘要 |
A method for generating a wire bond between a wire and an electrical contact member is provided. The method comprising the steps of: pressing a first surface of a portion of the wire against a second surface of the electrical contact member with a first force while vibrating the portion of the wire along the second surface in order to generate a bond; measuring the time dependent vibration amplitude of the portion of the wire at a number of discrete time steps during the generation of the bond; measuring the time dependent deformation of said portion of the wire due to said applied first force and said vibration at a number of discrete time steps during the generation of the bond; and generating a time dependent first signal from at least said vibration amplitude and said deformation at a number of discrete time steps during the generation of the bond that is a direct measure of the stability of the bond at the respective time step.
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申请公布号 |
US8020746(B2) |
申请公布日期 |
2011.09.20 |
申请号 |
US20070439883 |
申请日期 |
2007.09.04 |
申请人 |
TECHNISCHE UNIVERSITAET BERLIN;FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V. |
发明人 |
GEISSLER UTE;REICHL HERBERT;GAUL HOLGER;LANG KLAUS-DIETER;SCHNEIDER-RAMELOW MARTIN |
分类号 |
B23K20/10;B23K1/06 |
主分类号 |
B23K20/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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