Abstract
New lead free resistor compositions in the resistance range of >10kohm/sq were demonstrated. This is the first time that lead free resistor compositions in this range have been reported. During the last 30 years, many in the industry believed that it was impossible to develop load free thick film resistors. Our new findings show that it is very likely that lead free thick film resistors will become a reality. The difficulties encountered in the development of lead-free thick film resistors (TFRs) in the last 30 years will be discussed. New thick film resistors compositions developed and studied at Ben-Gurion University in the last 5 years are presented. New ruthenium based conducting phase and compatible glasses are described. Electrical properties (resistance and TCR) of the new lead-free TFRs are presented and discussed. The new resistor compositions span resistance range of ∼100 ohm/sq. to ∼1Megaohm/sq. with positive TCR. The implications of these properties are discussed.
| Original language | English |
|---|---|
| Pages (from-to) | 543-547 |
| Number of pages | 5 |
| Journal | Proceedings of SPIE - The International Society for Optical Engineering |
| Volume | 4931 |
| State | Published - 1 Jan 2002 |
| Event | 2002 International Symposium on Microelectronics - Denver, CO, United States Duration: 4 Sep 2002 → 6 Sep 2002 |
Keywords
- Alkaline earths glasses
- Bismuthate glasses
- Electrical properties
- Lead free
- New ruthenium pyrochlore
- Thick-film resistors
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering