| Predicate |
Object |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L21-76838
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L21-7684
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L21-76843
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L21-32136
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L21-76865
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L21-76862
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C23F4-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L21-32115 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L21-44
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C23F4-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L21-3213
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L21-321
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L21-768
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L21-3065 |
| filingDate |
2002-09-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6def990f5cc66abf5509c0375ffeda9a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8ce7c5c38cc2c1fc87f22f5c16ec0676 |
| publicationDate |
2004-03-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-2004058528-A1 |
| titleOfInvention |
Selective dry etching of tantalum and tantalum nitride |
| abstract |
The invention describes a method for the selective dry etching of tantalum and tantalum nitride films. Tantalum nitride layers ( 30 ) are often used in semiconductor manufacturing. The semiconductor substrate is exposed to a reducing plasma chemistry which passivates any exposed copper ( 40 ). The tantalum nitride films are selectively removed using an oxidizing plasma chemistry. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2010012153-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2005158999-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7094705-B2 |
| priorityDate |
2002-09-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |