Title :
Thick-film and LTCC microvaristors
Author :
Mis, Edward ; Dziedzic, Andrzej ; Mielcarek, Witold
Author_Institution :
Wroclaw Univ. of Technol., Warsaw
Abstract :
ZnO-based varistors are frequently used for electronic circuits overvoltage protection. Such material requires sintering at temperatures of 1150degC-1300degC. Lowering it to the typical range 850degC-950degC used in thick-film and LTCC technology is desirable. ZnO-based paste was prepared and exploited for varistors fabrication on alumina and LTCC substrate. Different component topologies, materials for electrodes and firing profiles were used. I-V characteristics of varistors as well as long term stability and durability to high voltage pulses were investigated. Satisfactory results were achieved.
Keywords :
II-VI semiconductors; ceramics; durability; firing (materials); overvoltage protection; sintering; thick film resistors; varistors; wide band gap semiconductors; zinc compounds; Al2O3; I-V characteristics; LTCC microvaristors; ZnO; electronic circuits; firing profiles; high-voltage pulses; long-term stability; overvoltage protection; sintering; temperature 1150 C to 1300 C; temperature 850 C to 950 C; thick-film microvaristors; varistors fabrication; Circuit topology; Electrodes; Electronic circuits; Fabrication; Firing; Protection; Stability; Temperature; Varistors; Voltage control;
Conference_Titel :
Electronics Technology, 30th International Spring Seminar on
Conference_Location :
Cluj-Napoca
Print_ISBN :
987-1-4244-1218-1
Electronic_ISBN :
987-1-4244-1218-1
DOI :
10.1109/ISSE.2007.4432820
