http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11261521-B2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_328935cf63d844e358b4a7a694e4850f |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C30B29-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C23C16-274 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C23C16-27 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B32-25 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C23C16-27 |
| filingDate | 2016-11-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-03-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ec8d28cdbceacb90be93df1b354b2751 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_faaa6ff29b6da09bdf8242746a7e9338 |
| publicationDate | 2022-03-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-11261521-B2 |
| titleOfInvention | Thick optical quality synthetic polycrystalline diamond material with low bulk absorption and low microfeature density |
| abstract | A poly crystalline chemical vapour deposited (CVD) diamond wafer comprising: —a diameter >40 mm; —a thickness >1.0 mm; —an absorption coefficient ≤0.1 cm −1 at 10.6 μm; and ⋅a micro feature density, especially in the form of “black spots”, meeting the following specification: —in a central area of the polycrystalline CVD diamond wafer from 0 to 20 mm radius there are no more than 100 micro features of a size between 0.002 and 0.008 mm 2 , no more than 50 micro features of a size between 0.008 and 0.018 mm 2 , no more than 25 microfeatures of a size between 0.018 and 0.05 mm 2 , and zero microfeatures of a size between 0.05 and 0.1 mm 2 , and ⋅in an outer region of the polycrystalline CVD diamond wafer from 20 to 40 mm radius there are no more than 200 microfeatures 2 of a size between 0.002 and 0.008 mm 2 , no more than 150 microfeatures of a size between 0.008 and 0.018 mm 2 , no more than 100 microfeatures of a size between 0.018 and 0.05 mm 2 , and zero microfeatures of a size between 0.05 and 0.1 mm 2 . |
| priorityDate | 2015-12-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 36.