Common mode filter with ESD protection pattern built therein
US8981889B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 15, 2013 |
| Grant date | Mar 17, 2015 |
| Priority date | — |
| Expiry date | Mar 20, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F2017/0066
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Disclosed herein is a common mode filter with an ESD protection pattern built therein. The common mode filter includes a base substrate that is made of an insulating material, a first insulating layer that is formed on the base substrate, a coil-shaped internal electrode that is formed on the first insulating layer, a second insulating layer that is formed on the internal electrode, a first external electrode terminal that is formed on the second insulating layer, a first ferrite resin layer that is formed on the second insulating layer and receives the first external electrode terminal, an ESD protection pattern that is formed on the first external electrode terminal, a second external electrode terminal that is formed on the ESD protection pattern, and a second ferrite resin layer that is formed on the first ferrite resin layer and receives the second external electrode terminal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.