Samsung patents method to build LEDs with fewer defects
Samsung has filed a patent for a specific way to manufacture light-emitting diodes (LEDs). The process involves creating a layer with holes that blocks common crystal defects, followed by growing additional layers to form the light-emitting part.
In the filing’s own words
A method of manufacturing a light emitting device is provided. The method includes forming, on a substrate, a first semiconductor layer having a plurality of recesses formed therein; forming, on the first semiconductor layer, a dislocation blocking layer having a plurality of holes formed therein; forming a first portion of a second semiconductor layer by three-dimensionally growing the first semiconductor layer to define a plurality of voids between the first semiconductor layer and the second semiconductor layer in the plurality of recesses; forming a second portion of the second semiconductor layer by laterally growing the first portion of the second semiconductor layer; forming a remainder of the second semiconductor layer by growing the second portion of the second semiconductor layer; forming a third semiconductor layer on the second semiconductor layer; forming an active layer on the third semiconductor layer; and forming a fourth semiconductor layer on the active layer.
What exactly they claim (claim 1)
1. A method of manufacturing a light emitting device, the method comprising: forming, on a substrate, a first semiconductor layer having a plurality of recesses formed therein; forming, on the first semiconductor layer, a dislocation blocking layer having a plurality of holes formed therein; forming a first portion of a second semiconductor layer by three-dimensionally growing the first semiconductor layer to define a plurality of voids between the first semiconductor layer and the second semiconductor layer in the plurality of recesses; forming a second portion of the second semiconductor layer by laterally growing the first portion of the second semiconductor layer; forming a remainder of the second semiconductor layer by growing the second portion of the second semiconductor layer; forming a third semiconductor layer on the second semiconductor layer; forming an active layer on the third semiconductor layer; and forming a fourth semiconductor layer on the active layer.
Facts
- Company
- Samsung (SAMSUNG ELECTRONICS CO., LTD.)
- Official title
- METHOD OF MANUFACTURING LIGHT EMITTING DEVICE
- Publication number
- US20260262331A1
- Application number
- 19655130
- Filed
- Apr 22, 2026
- Published
- Sep 3, 2026
- Inventors
- 4
- Claims
- 20
Classified under
H10H 20/01335 Electricity & electronicsH10H 20/016 Electricity & electronicsH10H 20/017 Electricity & electronicsH10H 20/815 Electricity & electronicsH10H 20/819 Electricity & electronicsH10H 29/011 Electricity & electronicsMore from Samsung in Chips & hardware
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Summaries are simplified from the filing’s own abstract and first claim. A patent filing is not a product announcement.
Patent data and drawings: U.S. Patent and Trademark Office (USPTO). Nebula is not affiliated with or endorsed by the USPTO.