TY - GEN AU - SUSZYŃSKI,Zbigniew, Politechnika Koszalińska - Wydział Elektroniki AU - ARSOBA,Robert, Politechnika Koszalińska - Wydział Elektroniki AU - MAJCHRZAK,Piotr, Politechnika Koszalińska - Wydział Elektroniki ED - International Conference IMAPS-Poland 2001 TI - Investigating quality of adhesion in thyristor structures by photoacoustic mathod PY - 2001/// KW - Tyrystory KW - Materiały konferencyjne N1 - Dane z Informatora o publikowanych wynikach prac naukowo-badawczych w 2001 roku Wydziału Elektroniki N2 - In this paper opportunities of adhesion assessment between silicon and molybdenum layers in power thyristors are presented. For the diagnostic of the structure, the photoacoustic method, witch is one of thermal methods was used. Amplitude and phase photoacoustic images show the same areas of delamination as the pictures from scanning acoustic microscope. In the contrary to the acoustic method, the photoacoustic one is non-contact and does not require the sample to be immersed in the coupling fluid ER -