Sealed rectifier
US5886403A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 7, 1997 |
| Grant date | Mar 23, 1999 |
| Priority date | — |
| Expiry date | Aug 7, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/351
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
A sealed rectifier used in a vehicle alternator is composed of a semiconductor diode chip, a base electrode having a disk plate which has a central mount for supporting the chip and an annular wall extending higher than the central mount, a pole electrode having a flange connected to the other side of the chip and an insulating member covering the chip, base electrode and pole electrode. The thickness of the annular wall is smaller than the thickness of the central mount, the outer periphery of the disk plate has a serrated surface for mechanical connection with an cooling fin of the alternator, and the insulating member is composed of resinous material and inorganic filler material to provide residual internal pressure higher than the atmospheric pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.