Substrate mounted filter for feedthrough devices
US5896267A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 10, 1997 |
| Grant date | Apr 20, 1999 |
| Priority date | — |
| Expiry date | Jul 10, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/435
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Filtered feedthrough assembly (100, 200) is formed by mounting a filter support assembly (130, 130', 230) having a capacitor (110,210) mounted thereto, to a conductive feedthrough (10, 10'). The conductive feedthrough includes a metallic ferrule (14, 14') having a centrally disposed through opening (28) extending between opposing ends thereof. At least one elongate lead wire (12) extends through the ferrule through opening. A hermetic seal insulator (20, 20') is disposed within the central opening of the ferrule and is sealed thereto. The filter support assembly (130, 130', 230) includes an insulative substrate (132, 132', 132") having a first metallization pattern (133, 314) formed on an upper surface (138, 138") thereof. A second metallization pattern (135, 316) is formed on the lower surface (124, 124') of substrate (132, 132', 132"). A capacitive element (110, 210) is electrically coupled between a first metallization area (145, 318) and second metallization area (143,320) of the first metallization pattern (133, 314). The first metallization area (145, 318) is electrically coupled to the lead (12) and the second metallization area (143, 320) is electrically coupled to the ferr…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.