High pass filters and low pass filters using through glass via technology
US9425761B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 16, 2013 |
| Grant date | Aug 23, 2016 |
| Priority date | — |
| Expiry date | Dec 21, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H7/0115
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A filter includes a glass substrate having through substrate vias. The filter also includes capacitors supported by the glass substrate. The capacitors may have a width and/or thickness less than a printing resolution. The filter also includes a 3D inductor within the substrate. The 3D inductor includes a first set of traces on a first surface of the glass substrate coupled to the through substrate vias. The 3D inductor also includes a second set of traces on a second surface of the glass substrate coupled to opposite ends of the through substrate vias. The second surface of the glass substrate is opposite the first surface of the glass substrate. The through substrate vias and traces operate as the 3D inductor. The first set of traces and the second set of traces may also have a width and/or thickness less than the printing resolution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.