| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_9019c0ce5cb7b82c85e121f6cac86dce
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_2a819eda0adf22936a52362eeebb9fb4 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L33-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L33-32 |
| filingDate |
2011-01-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_238c7bd162b52da5b66ebef642a36d0e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6d490dd77c616d057f5d179b9c012bff
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d5f53fdb5f65dae6356c41a3bd487460
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0d7416c009aa020e21d78f2d921c09b4 |
| publicationDate |
2011-04-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
JP-2011082587-A |
| titleOfInvention |
High efficiency gallium nitride based light emitting diodes by surface roughening |
| abstract |
【Task】 A means for improving the light extraction efficiency is provided by roughening the surface of a GaN-based LED. [Solution] In a gallium nitride (GaN) based light emitting diode (LED), light is extracted through the nitrogen surface (N surface) (42) of the LED. Also, the surface of the N face (42) is roughened into one or more hexagonal cones. Roughening the surface reduces repetitive light reflections inside the LED, so more light can be extracted from the LED. The surface of the N face (42) is roughened by anisotropic etching. This anisotropic etching may include dry etching and PEC etching. [Selection] FIG. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9018643-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2013099716-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2014527306-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2013138139-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9287366-B2 |
| priorityDate |
2011-01-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |