| Predicate |
Object |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L29-41766
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L29-945 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L29-4236
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L29-66734
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L29-7827
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L29-66727
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L29-7802
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L27-088
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L29-7813
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L21-765
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L21-823481
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L21-76224
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L21-823487
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L29-407
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L29-0649
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L28-40
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L28-60
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L21-28
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L21-28008
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L29-4916
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L29-42368
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L21-30604
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L29-1095 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L29-78
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L29-40
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L29-423
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L23-64
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L21-762
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L21-28 |
| filingDate |
2015-11-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2020-06-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate |
2020-06-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CN-105609409-B |
| titleOfInvention |
Trench having thick dielectric selectively on bottom portion |
| abstract |
The application relates to trenches selectively having a thick dielectric on a bottom portion. A method (100) of manufacturing a semiconductor device comprises: a semiconductor substrate having a top surface is etched (101) to form a trench having sidewalls and a bottom surface extending from the top surface into the semiconductor substrate. A dielectric liner of a first dielectric material is formed (102) on the bottom surface and sidewalls of the trench to line the trench. A second dielectric layer of a second dielectric material is deposited (103) to at least partially fill the trench. The second dielectric layer is partially etched (104) to selectively remove the second dielectric layer from an upper portion of the trench while preserving the second dielectric layer on a lower portion of the trench. The trench is filled (105) with a fill material providing a conductivity that is at least that of a semiconductor. |
| priorityDate |
2014-11-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |