Systems, devices and methods related to paint recirculation during manufacture of radio-frequency modules
US9381529B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Sep 11, 2013 |
| Grant date | Jul 5, 2016 |
| Priority date | — |
| Expiry date | Sep 11, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2203/1366
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
In applications such as manufacture of shielded radio-frequency modules where costly metallic paint is sprayed to form a conductive layer, it is desirable to reduce the amount of paint being utilized, and to maintain an acceptable level of suspension of paint particles in solution. A closed recirculation system can be configured to provide such desirable features, and can include a reservoir for holding a volume of metallic paint, a spray apparatus for spraying metallic paint received from the reservoir, and a recirculator for recirculating the metallic paint that is not sprayed back to the reservoir. In some embodiments, the recirculator can include a compact peristaltic pump that allows use of shorter fluid paths in the closed recirculation system, as well as a desired level of agitation to quickly achieve the acceptable level of suspension and maintain the suspension for an extended period of time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.