Lead frame for integrated circuit device having J-leads and Gull Wing leads
US10217700B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 15, 2018 |
| Grant date | Feb 26, 2019 |
| Priority date | — |
| Expiry date | May 15, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/181
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
A lead frame for a packaged integrated circuit (IC) device has alternating first and second leads that protrude from a package body in respective first and second planes, where the second plane is parallel to and below the first plane. The first leads are formed into Gull Wing shaped leads and the second leads are formed into J-shaped leads. Inner lead portions of the first and second leads are maintained in the first plane with a tape. An inner lead portion of each of the second leads, proximate to and extending to the outer lead portion, is down-set, so that when the outer lead portion is pressed down by a mold tool to locate the outer lead portion of the second leads in the second plane, the inner lead portion of the second leads is maintained in the first plane and does not separate from the tape.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.