| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d80f1040809503e54509c871ba828f75 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L2924-1438 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L21-32139
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L21-32136
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H10B41-50
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L21-3065
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H10B41-27
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L27-11582
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L27-11556
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L21-31144
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H10B43-50
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L21-31116
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H10B43-27
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L21-02554
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L21-0254 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L27-11556
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L27-11582
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L21-311 |
| filingDate |
2016-05-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2017-04-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c8eecb3dfd37b935fd0fd7f92c059ac9
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_49df026b61e0baa264d9eb6af23a0a0d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c220d6d9491e72d9f30caee551fab60c |
| publicationDate |
2017-04-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-9613824-B2 |
| titleOfInvention |
Etching method |
| abstract |
The etching method of one embodiment includes a first step of generating a plasma of a first processing gas containing a fluorocarbon gas and a hydrofluorocarbon gas in a processing container of a plasma processing apparatus, and a second step of generating a plasma of a second processing gas containing a hydrofluorocarbon gas and a nitrogen gas in the processing container. In the method, sequences each including the first step and the second step are performed. The plasma is continuously generated over the execution period for the first step and the execution period for the second step. In the second step, a ratio of the flow rate of a hydrogen gas to the flow rate of the second processing gas is set to be small in a period immediately before the execution period for the first step and a period immediately after the execution period for the first step. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11437232-B2 |
| priorityDate |
2015-05-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |