Title:
ISOLATION TRANSFORMER
Document Type and Number:
WIPO Patent Application WO/2022/210550
Kind Code:
A1
Abstract:
This isolation transformer includes: an isolation layer; a transformer having a first coil and a second coil; and a capacitor having a first capacitor electrode and a second capacitor electrode disposed between the first coil and the second coil. The isolation layer includes a first isolation film in which the first coil is embedded, a second isolation film formed on the upper surface of the first isolation film, a protective film formed on the upper surface of the second isolation film, a third isolation film formed on the upper surface of the protective film, a fourth isolation film formed on the upper surface of the third isolation film, and a fifth isolation film formed on the upper surface of the fourth isolation film. The second capacitor electrode is formed between the third isolation film and the fourth isolation film. The second coil is formed between the fourth isolation film and the fifth isolation film.
More Like This:
| WO/2009/039631 | CARRIER CHIP WITH CAVITY |
| WO/2004/015765 | MULTILAYER PRINTED WIRING BOARD |
| JPH0590448 | HYBRID INTEGRATED CIRCUIT |
Inventors:
TANAKA BUNGO (JP)
Application Number:
PCT/JP2022/015036
Publication Date:
October 06, 2022
Filing Date:
March 28, 2022
Export Citation:
Assignee:
ROHM CO LTD (JP)
International Classes:
H01L25/00; H01F19/04; H01F27/00; H01L21/822; H01L27/04; H02M1/08; H03K17/691
Domestic Patent References:
| WO2019235261A1 | 2019-12-12 |
Foreign References:
| JP2016006816A | 2016-01-14 |
Attorney, Agent or Firm:
ONDA Makoto et al. (JP)
Download PDF: