| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_bce787970b69aeb08d159e7c101c9ed7 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L21-76814
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L21-31116
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L21-3065
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L21-76877 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L21-304
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L21-768
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L21-3065
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L21-311
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J19-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C23C16-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C23C14-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L21-302 |
| filingDate |
1999-11-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0d5963a05439fd213099acab063ffd08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_50c87c2689d161fe5c50ed636b248a24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fc25717323de8fd02b924a945464bfff |
| publicationDate |
2001-10-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-1138066-A1 |
| titleOfInvention |
Plasma preclean with argon, helium, and hydrogen gases |
| abstract |
The present invention provides a method and apparatus for precleaning a patterned substrate with a plasma comprising a mixture of argon, helium, and hydrogen. Addition of helium to the gas mixture of argon and hydrogen surprisingly increases the etch rate in comparison to argon/hydrogen mixtures. Etch rates are improved for argon concentrations below about 75 % by volume. RF power is capacitively and inductively coupled to the plasma to enhance control of the etch properties. Argon, helium, and hydrogen can be provided as separate gases or as mixtures. |
| priorityDate |
1998-12-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |