Abstract
UDC 539.216.2:621.9.048.7
Cited in the article are the results of studying the pulse laser radiation influence on the surface morphology and certain electrophysical properties of Ni3B-based thick films obtained by screen-printing of composite pastes onto a dielectric substrate. The action of nanosecond pulses promotes refining the particles of the conducting phase, whereas under microsecond pulses the distribution of the conducting phase remains the same on the entire surface. The irradiation with millisecond pulses, at the energy of Е = 0.4–0.6 J, results in surface flowing. Voltage-current characteristics and dependence of electrical resistivity on temperature are presented. Laser processing of the samples in the nano- and microsecond ranges is established to promote the work of resistors according to standard and technical conditions when I-U linear dependence is realized.
Keywords: thick films, surface structure, laser processing, electrophysical properties.