Title :
Excess current noise in granular resistors
Author_Institution :
Fac. of Eng., Kyushu Inst. of Technol., Kitakyushu, Japan
Abstract :
Excess current noise measurements were carried out on granular resistors and electric contacts. The samples are graphite thick film resistors, metal film resistors, PTC ceramics, ceramic superconductors and crossbar contacts. All noise spectra are of the 1/f type. A one-dimensional model for explaining the 1/f noise in these samples is studied. It is based on the spontaneous temperature fluctuation of the small conducting spots in the samples and thermal conduction in a semi-infinite exponentially tapered solid
Keywords :
1/f noise; ceramics; electric noise measurement; electrical contacts; electron device noise; granular materials; heat conduction; thick film resistors; 1/f noise; PTC ceramics; ceramic superconductors; conducting spots; crossbar contacts; electric contacts; excess current noise; granular resistors; graphite thick film resistors; metal film resistors; noise measurements; one-dimensional model; semi-infinite exponentially tapered solid; spontaneous temperature fluctuation; thermal conduction; Ceramics; Fluctuations; Granular superconductors; Noise measurement; Resistors; Superconducting device noise; Superconducting films; Temperature; Thermal conductivity; Thick films;
Conference_Titel :
Electronic Manufacturing Technology Symposium, 1995, Proceedings of 1995 Japan International, 18th IEEE/CPMT International
Conference_Location :
Omiya
Print_ISBN :
0-7803-3622-4
DOI :
10.1109/IEMT.1995.541058
