In this paper, the influence of working electrolyte on high-frequency electrical performance of wet tantalum capacitors is studied. Emphasis is especially put on the study of the contribution of depolariser in reducin...In this paper, the influence of working electrolyte on high-frequency electrical performance of wet tantalum capacitors is studied. Emphasis is especially put on the study of the contribution of depolariser in reducing Equivalent Series Resistance(ESR). According to the theory of depolarization in electrochemistry and the theory of cathode capacitance of electrolytic capacitor, different kinds of depolarisers are added separately into the foregone electrolyte. Then capacitors are assembled with tantalum cores dipped with the compounded electrolytes. The best depolariser and its concentration in the whole electrolyte could be selected according to the test results of the capacitance and ESR of the capacitors. The results of our experiment show that depolariser Fe 2(SO 4) 3 used in working electrolyte of 100 V/100 μF wet tantalum capacitors can help to obtain lower ESR and higher capacitance at frequency from 0.1 kHz to 100 kHz.展开更多
Y2000-62135-245 0019861采用 PECVD 氮化物用于混合信号和射频电路的高密度金属绝缘体金属电容器=High density metal insula-tor metal capacitors using PECVD Nitride for mixed sig-nal and RF circuits[会,英]/Kar-Roy,A.& Hu...Y2000-62135-245 0019861采用 PECVD 氮化物用于混合信号和射频电路的高密度金属绝缘体金属电容器=High density metal insula-tor metal capacitors using PECVD Nitride for mixed sig-nal and RF circuits[会,英]/Kar-Roy,A.& Hu,C.//1999 IEEE Proceedings of InternationaI InterconnectTechnology Conference.-245～247(EC)展开更多
文摘In this paper, the influence of working electrolyte on high-frequency electrical performance of wet tantalum capacitors is studied. Emphasis is especially put on the study of the contribution of depolariser in reducing Equivalent Series Resistance(ESR). According to the theory of depolarization in electrochemistry and the theory of cathode capacitance of electrolytic capacitor, different kinds of depolarisers are added separately into the foregone electrolyte. Then capacitors are assembled with tantalum cores dipped with the compounded electrolytes. The best depolariser and its concentration in the whole electrolyte could be selected according to the test results of the capacitance and ESR of the capacitors. The results of our experiment show that depolariser Fe 2(SO 4) 3 used in working electrolyte of 100 V/100 μF wet tantalum capacitors can help to obtain lower ESR and higher capacitance at frequency from 0.1 kHz to 100 kHz.
文摘Y2000-62135-245 0019861采用 PECVD 氮化物用于混合信号和射频电路的高密度金属绝缘体金属电容器=High density metal insula-tor metal capacitors using PECVD Nitride for mixed sig-nal and RF circuits[会,英]/Kar-Roy,A.& Hu,C.//1999 IEEE Proceedings of InternationaI InterconnectTechnology Conference.-245～247(EC)
