Stack tool for reflow and stack apparatus having the same
US10833046B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 8, 2018 |
| Grant date | Nov 10, 2020 |
| Priority date | — |
| Expiry date | Jan 22, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/15331
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
A stack tool comprises a lower jig having a plurality of package seating regions configured to seat a semiconductor package, an intermediate jig configured to be seated on top of the lower jig, and having a package support hole into which the semiconductor package is configured to be inserted, the intermediate jig having a shape corresponding to the plurality of package seating regions, and an upper dumbbell. The upper dumbbell includes a dumbbell main body on top of the intermediate jig, an upper recess stepped downward from an upper surface of the dumbbell main body on only a region corresponding to an upper surface of the semiconductor package, and a protruding support configured to protrude downward from a lower surface of the upper recess and configured to be brought into contact with an upper surface of the semiconductor package.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.