Schematic diagram of the photoacustical microscope:
1 – CW laser; 2 – modulator; 3 – scanner; 4 – objective lens; 5 – sample; 6 – piezoceramics; 7 – amplifier; 8 – computer.

Subsurface microwelded interconnection images obtained with photoacoustic microscope. Cross identifies the site of action of ultrasonic welding bit.

Features:

Applications:

• nondestructive quality control of microwelded interconnections;
• nondestructive quality control of mechanical contacts.

Developer:

Photon Processes Department of the Institute of Physics (V.M. Kadan).

Contact information:

Tel. +38 (044) 525 98 41
Fax: +38 (044) 525 15 43
E-mail: fesenko@iop.kiev.ua