Details
| Original language | English |
|---|---|
| Title of host publication | 2022 IEEE 9th Electronics System-Integration Technology Conference, ESTC 2022 - Proceedings |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Pages | 129-133 |
| Number of pages | 5 |
| ISBN (electronic) | 9781665489478 |
| ISBN (print) | 978-1-6654-8948-5 |
| Publication status | Published - Sept 2022 |
| Event | 9th IEEE Electronics System-Integration Technology Conference, ESTC 2022 - Sibiu, Romania Duration: 13 Sept 2022 → 16 Sept 2022 |
Publication series
| Name | 2022 IEEE 9th Electronics System-Integration Technology Conference, ESTC 2022 - Proceedings |
|---|
Abstract
The need for high frequency charging technology for hybrid and electric cars as well as any kind of handheld devices is increasing steadily. Furthermore, frequencies of 500 kHz and above as well as new GaN converters allow a decrease in components size and footprint of the power devices. In this work a novel fabrication method for planar transformer with a height of less than 2.5 mm is presented. The transformers are produced inside a PEEK substrate by utilizing injection molding, laser structuring and electroless plating. The magnetic core consists of multiple laser-cut ferrite sheets. The trans-formers show results of up to 27 μH in a frequency range from 1 kHz to 1 MHz, which corresponds to 4.5 μH/cm2, and a coupling factor of over 95%. In comparison to wire wound transformers, multiple complex process as the winding itself can be replaced by less complex process like laser structuring and electroless plating. These processes allow the production in batch, which can lower the cost in an industrial production below of wire wound transformers.
Keywords
- injection molding, packaging technology, passive components, PEEK, planar magnetics, polyetheretherketon MID, transformer
ASJC Scopus subject areas
- Computer Science(all)
- Hardware and Architecture
- Materials Science(all)
- Electronic, Optical and Magnetic Materials
- Engineering(all)
- Electrical and Electronic Engineering
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2022 IEEE 9th Electronics System-Integration Technology Conference, ESTC 2022 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2022. p. 129-133 (2022 IEEE 9th Electronics System-Integration Technology Conference, ESTC 2022 - Proceedings).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research
}
TY - GEN
T1 - Fabrication of a Low Profile Planar Transformer Using Molded Interconnect Device Technology
AU - Bierwirth, Tim Nils
AU - Dencker, Folke
AU - Fischer, Eike Christian
AU - Wurz, Marc Christoper
PY - 2022/9
Y1 - 2022/9
N2 - The need for high frequency charging technology for hybrid and electric cars as well as any kind of handheld devices is increasing steadily. Furthermore, frequencies of 500 kHz and above as well as new GaN converters allow a decrease in components size and footprint of the power devices. In this work a novel fabrication method for planar transformer with a height of less than 2.5 mm is presented. The transformers are produced inside a PEEK substrate by utilizing injection molding, laser structuring and electroless plating. The magnetic core consists of multiple laser-cut ferrite sheets. The trans-formers show results of up to 27 μH in a frequency range from 1 kHz to 1 MHz, which corresponds to 4.5 μH/cm2, and a coupling factor of over 95%. In comparison to wire wound transformers, multiple complex process as the winding itself can be replaced by less complex process like laser structuring and electroless plating. These processes allow the production in batch, which can lower the cost in an industrial production below of wire wound transformers.
AB - The need for high frequency charging technology for hybrid and electric cars as well as any kind of handheld devices is increasing steadily. Furthermore, frequencies of 500 kHz and above as well as new GaN converters allow a decrease in components size and footprint of the power devices. In this work a novel fabrication method for planar transformer with a height of less than 2.5 mm is presented. The transformers are produced inside a PEEK substrate by utilizing injection molding, laser structuring and electroless plating. The magnetic core consists of multiple laser-cut ferrite sheets. The trans-formers show results of up to 27 μH in a frequency range from 1 kHz to 1 MHz, which corresponds to 4.5 μH/cm2, and a coupling factor of over 95%. In comparison to wire wound transformers, multiple complex process as the winding itself can be replaced by less complex process like laser structuring and electroless plating. These processes allow the production in batch, which can lower the cost in an industrial production below of wire wound transformers.
KW - injection molding
KW - packaging technology
KW - passive components
KW - PEEK
KW - planar magnetics
KW - polyetheretherketon MID
KW - transformer
UR - http://www.scopus.com/inward/record.url?scp=85143165666&partnerID=8YFLogxK
U2 - 10.1109/ESTC55720.2022.9939495
DO - 10.1109/ESTC55720.2022.9939495
M3 - Conference contribution
AN - SCOPUS:85143165666
SN - 978-1-6654-8948-5
T3 - 2022 IEEE 9th Electronics System-Integration Technology Conference, ESTC 2022 - Proceedings
SP - 129
EP - 133
BT - 2022 IEEE 9th Electronics System-Integration Technology Conference, ESTC 2022 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 9th IEEE Electronics System-Integration Technology Conference, ESTC 2022
Y2 - 13 September 2022 through 16 September 2022
ER -