| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_bce787970b69aeb08d159e7c101c9ed7 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01J2237-022 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C23C16-4405
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01J37-32862
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B08B7-0035
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L21-304 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C23C16-44
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L21-302
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B08B7-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L21-205
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L21-3065
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01J37-32 |
| filingDate |
1994-10-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_05a5e6de7b86a470ad902a93d4c2b6c0 |
| publicationDate |
1995-05-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-0651070-A1 |
| titleOfInvention |
Methods for removing contaminants from vacuum chamber surfaces |
| abstract |
The disclosure relates to in-situ cleaning of unwanted films and particles of a material from a surface situated inside a vacuum chamber (12) by equipping such chamber with a means (30,32) of generating a magnetic field having a magnetic flux density of at least 25 gauss, flowing at least one gas into the chamber through an inlet port (20) and igniting a plasma by an RF generator (18) to produce plasma ions of at least one gas, switching on the magnetic field generating means (30,32) to a magnetic flux density of no less than 25 gauss and, reducing the magnetic field by a flux density of at least 10 gauss such that the unwanted films and particles of the material are dislodged from the surface by the sudden change in the magnetic flux density at the magnetic field. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-0193322-A1 |
| priorityDate |
1993-10-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |