Laser-based droplet array jetting of high viscous materials
US11548212B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 14, 2021 |
| Grant date | Jan 10, 2023 |
| Priority date | — |
| Expiry date | Jul 27, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K3/125
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Laser jetting of droplets of a viscous material, such as an ink, is performed by coating a layer of ink on a mesh-like transport screen, with the ink being retained within spaces of the mesh-like transport screen. The ink-coated mesh-like transport screen is conveyed to a working area and a laser beam is used to heat the ink within the spaces of the mesh-like transport screen, thereby causing ink droplets to be jetted from the spaces of the mesh-like transport screen. Structures are formed on a receiving substrate arranged near the working area by jetting the ink droplets, either in an aggregation or sequentially, across a gap from the mesh-like transport screen to the receiving substrate and displacing the mesh-like transport screen and the laser beam relative to one another at times between the jetting of the droplets, or by directly printing ink droplets onto the receiving substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.