Abstract
noise properties of carbon black/polyesterimide and (carbon )/polyesterimide thick-film resistors are studied. In resistive inks either high-structure carbon black or medium-structure carbon black was used. The influence of the content p of carbon black and graphite in resistive inks and curing temperature on sheet resistance and noise intensity C is considered. It is shown that a higher curing temperature causes a decrease in the resistor's volume and influences and C indirectly, via changes of the parameter p. It is then found that an increase in p leads to a simultaneous decrease of sheet resistance and noise intensity C. The relation is found in this case for all measured resistors. The values of noise exponent are estimated and a comparison with the noise properties of conventional cermet thick-film resistors is made. It is shown that the noise intensities of carbon black/polyesterimide resistors are comparable to those of cermet resistors.
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