http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113120872-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0f23f04373f26915ff7578e2cada4061 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C30B35-007 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C30B29-403 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B21-0728 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C30B35-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B21-072 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C30B29-40 |
| filingDate | 2021-04-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-07-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-113120872-A |
| titleOfInvention | A kind of pretreatment method of aluminum nitride powder used in PVT method |
| abstract | A pretreatment method of aluminum nitride powder used in PVT method belongs to the surface treatment method of aluminum nitride material. The technical problem to be solved by the present invention is the impurity treatment of aluminum nitride powder. In the present invention, the aluminum nitride powder and the surface treatment agent are weighed, stirred for a certain period of time, and a stable organic solvent is added to the obtained mixture, stirred for a certain period of time, and then allowed to stand for precipitation, the separated lower-layer mixture is left to stand for precipitation, and the separated lower-layer solid contains Add a high-polarity organic solvent, stir and wash, repeat the washing for 2-5 times, separate and obtain the washed solid, add a stable organic solvent, stir evenly, and place in a rotary evaporator to evaporate the solvent until there is no visible solvent to obtain Pretreated aluminum nitride powder. The method of the present invention is directed to the treatment of oxygen impurities caused by the oxide film on the surface of aluminum nitride. |
| priorityDate | 2021-04-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 47.