Method for mass transfer of mini light-emitting diodes (mini-LEDs) using sliding-on-membrane pin ejection
US12289932B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 11, 2024 |
| Grant date | Apr 29, 2025 |
| Priority date | — |
| Expiry date | Jul 11, 2044 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/80
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
An ejector pin sliding on membrane-based device and method for mass transfer of mini light-emitting diodes (Mini-LEDs) are provided. The device includes a gantry transverse beam. The gantry transverse beam is provided with an ejector pin base, and the ejector pin base is configured to move along the gantry transverse beam. The ejector pin base is fixedly provided with a vision camera and an ejector pin. A blue membrane is horizontally provided at a side of the gantry transverse beam close to the ejector pin, and is spaced from the gantry beam. A surface of a side of the blue membrane away from the gantry transverse beam is adhesively provided with a plurality of Mini-LED chips arranged evenly. A transfer substrate is horizontally provided at a side of the blue membrane close to the plurality of Mini-LED chips, and is spaced from the blue membrane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.