Rectifier diode with improved means for tension relief of the connected headwire
US6667545B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 12, 1996 |
| Grant date | Dec 23, 2003 |
| Priority date | — |
| Expiry date | Aug 12, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/3025
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
The rectifier diode includes a press-fit base (12) including an axially extending substantially securing region (14) for a semiconductor chip (20); a head wire (24) attached to the semiconductor chip (20); an encapsulation (40) for at least an end portion (26) of the head wire (24) connected to the semiconductor chip (20); a collar (44) extending from a peripheral end portion (42) of the securing region (14), which extends axially beyond a securing face (16) of the securing region (14) and is inclined to an axis (50) of the securing region (14). The securing face (16) is closer to the head wire (24) than is an outer edge region (12′) of the press-fit base (12). The collar (44) is in one-piece with the securing region (14) and includes a first portion (60) extending from the peripheral end portion (42) and inclined to the axis (50) at a first positive angle (&agr;′) and a second portion (62) extending from the first portion (60) and inclined at a second positive angle (&agr;) such that the second positive angle (&agr;) is greater than the first positive angle (&agr;′). The encapsulation (40) surrounds and encloses the securing region (14) as well as the end portion…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.