Method for manufacturing light emitting diode packaging structure
US11670749B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 3, 2022 |
| Grant date | Jun 6, 2023 |
| Priority date | — |
| Expiry date | Mar 3, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/0364
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
A method for manufacturing a light emitting diode packaging structure includes the operations below. A flexible substrate having a first surface and a second surface is provided. A carrier substrate is formed on the first surface. An adhesive layer is formed on the second surface. A micro light emitting element is formed on the adhesive layer. The micro light emitting element has a conductive pad thereon opposite to the adhesive layer. A redistribution layer is formed and covers the micro light emitting element and the adhesive layer, wherein the redistribution layer includes a circuit layer electrically connecting to the conductive pad and an insulating layer covering the circuit layer. An electrode pad is formed on the redistribution layer and electrically connected to the circuit layer, wherein a total thickness of the flexible substrate, the adhesive layer, the redistribution layer, and the electrode pad is less than 200 um.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.