Nondestructive Evaluation of Soldered Joints Using Photothermoelastic Effect

This paper describes photothermoelastic effect occurring at the IC lead's soldered joints. Irradiation of chopped LASER light on a lead frame produces flexural vibration caused by the thermoelastic bending. Conditions of soldered joints were modelled into 3 categories, that is “nomalsoldering”,...

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Veröffentlicht in:	Journal of the Japan Society for Precision Engineering 1992/02/05, Vol.58(2), pp.343-348
Hauptverfasser:	SAITOH, Takeshi, HANE, Kazuhiro
Format:	Artikel
Sprache:	eng ; jpn
Schlagworte:	nondestructive evaluation photoacoustic effect photothermoelastic bending photothermoelastic effect soldered joint
Online-Zugang:	Volltext
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