Paste coater and PoP automatic mounting apparatus employing the same
US7497365B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 11, 2006 |
| Grant date | Mar 3, 2009 |
| Priority date | — |
| Expiry date | Aug 20, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2203/0534
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A paste coater that can apply an amount of a solder paste to small-diameter bump electrodes at a narrow pitch is described. A paste coater includes: a transfer roller, supported by a sub frame; a roller drive mechanism for rotating the transfer roller; a paste storage unit for storing paste to be supplied to the surface of the transfer roller; a squeegee having a distal edge, parallel to the rotary shaft of the transfer roller, separated by a gap from the distal edge to the surface of the transfer roller; a squeegee holder for holding and including biasing means for pushing the squeegee in a first direction thereby widening the gap; and a gap adjustment mechanism with biasing means for pushing the squeegee in a second direction thereby narrowing the gap.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.