Alignment and orientation features for a semiconductor package
US6577019B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 21, 2000 |
| Grant date | Jun 10, 2003 |
| Priority date | — |
| Expiry date | Jan 21, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/19043
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
A semiconductor device formed by an automated wire bonding system. The semiconductor device comprises a lead frame having a plurality of lead fingers and a die paddle, and a semiconductor die mounted to the die paddle. The die paddle comprises a plurality of eyepoint features that extend from the die. The die comprises a first plurality of bonding pads and the lead fingers comprise a second plurality of bonding pads. The first and second bonding pads are interconnected by a plurality of connecting wires which are installed by the automated wire bonding system. The wire bonding system obtains an image of the lead frame and identifies the eyepoint features of the die paddle within the image so as to more accurately determine the positions of the second wire bonding pads of the lead frame with respect to the wire bonding system
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.