| Predicate |
Object |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C23C16-345
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03F7-2043
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03F7-0041
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03F1-80
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L21-31116
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L21-0217 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L21-311
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L21-308
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L21-306 |
| filingDate |
1998-08-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate |
1999-04-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
KR-19990029281-A |
| titleOfInvention |
Silicon Nitride Etching |
| abstract |
The present invention relates to a method of etching silicon nitride using a composition containing a fluoride-containing compound, a particular organic solvent and water. |
| priorityDate |
1997-09-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |