发明名称 Method and apparatus for the production and quality testing of a bonded wire connection
摘要 Method of producing a bonded wire connection between an electronic component or a subassembly and a carrier by introducing energy from an ultrasound transducer into a wire that is to be bonded. According to this method, during the introduction of energy the impedance of the ultrasound transducer is measured as a function of time. The shape of the curve representing this time dependence is evaluated on the basis of a pre-specified comparison criteria, and the power input to the ultrasound transducer and/or a bond weight exerted on the wire is/are controlled in dependence on the result of this evaluation. A device usable for carrying out this method is also described.
申请公布号 US2004221653(A1) 申请公布日期 2004.11.11
申请号 US20040863554 申请日期 2004.06.08
申请人 FARASSAT FARHAD 发明人 FARASSAT FARHAD
分类号 H01L21/60;B23K20/10;G01N29/04;G01N29/09;H01L21/607;(IPC1-7):G01N29/04 主分类号 H01L21/60
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