Influence of processing and conduction materials on properties of co-fired resistors in LTCC structures
| Autor: | Hansu Birol, Peter Ryser, Thomas Maeder |
|---|---|
| Rok vydání: | 2006 |
| Předmět: |
Materials science
PTC resistors LTCC Scanning electron microscope Microstructure-final sensors law.invention Reliability (semiconductor) Sintering law Electron microscopy Materials Chemistry Ceramic Composite material couches epaisses Sheet resistance Thermal conduction Technologie des Couches Epaisses visual_art Electronic component Electrical properties Ceramics and Composites visual_art.visual_art_medium Resistor Temperature coefficient thick-film technology |
| Zdroj: | Journal of the European Ceramic Society. 26:1937-1941 |
| ISSN: | 0955-2219 |
| DOI: | 10.1016/j.jeurceramsoc.2005.09.030 |
| Popis: | The motivation of this study is the need for fundamental understanding of the effects of processing conditions on the electrical properties of low- temperature co-fired ceramic (LTCC) tapes, those screen printed with commercial thick-film pastes of electronic components for increased reliability. The method of the study is realized by analyzing the physical and chemical effects of mono/multilayer firing and firing temperatures on the temperature coefficient of resistance (TCR) and sheet resistance (SR) values of the positive temperature coefficient (PTC) resistors screen-printed on LTCC tapes. The results are discussed with respect to the information obtained by the scanning electron microscopy (SEM), electro dispersive X-ray analysis (EDXS), X-ray and dilatometry analysis. It is shown that the content of pastes combined with varying processing conditions result in deviation from expected TCR and SR values due to the chemical and/or mechanical reactions. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect