Semiconductor package having leadframe with exposed anchor pads
US8089141B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 25, 2010 |
| Grant date | Jan 3, 2012 |
| Priority date | — |
| Expiry date | Jan 25, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/181
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
A semiconductor package including a leadframe which has one or more anchor pads formed on and/or defined by the die pad thereof. Such anchor pad(s) may be provided in any one of a multiplicity of different pad shapes, and are adapted to satisfy the required mechanical anchoring and thermal dissipation thresholds for the package, while still enabling high density circuit routing on the printed circuit board under the package. The leadframe of the semiconductor package further includes a plurality of leads which are segregated into at least two sets, with the leads of each set extending along and in spaced relation to respective ones of the peripheral edge segments defined by the die pad. Connected to the top surface of the die pad is at least one semiconductor die which is electrically connected to at least some of the leads of each set by conductive wires. The semiconductor die, the wires, and portions of the die pad and leads are encapsulated by a package body, the bottom surfaces of the anchor pads of the die pad and the bottom surfaces of the leads being exposed in or on a common exterior surface of the package body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.