| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_36333273e27f0db23ddddbf80ba79ba7 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L29-0603
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L29-66439
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L29-42392
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L29-78696
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L29-66545
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L29-0684
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L29-6681
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L29-785
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L21-823437
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L21-823431 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L29-66
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L29-78 |
| filingDate |
2019-08-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0663f2fa2efb0354f48dac8d33f4d95d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_88308ef7f5d5074da29eb96e6c92a44d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_745795382e7a65de739993fe15ec7930
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_286e44f2f3027351d17b7c9cd2cffe64 |
| publicationDate |
2021-02-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-2021057541-A1 |
| titleOfInvention |
Structure and formation method of semiconductor device with metal gate stack |
| abstract |
A structure and formation method of a semiconductor device is provided. The method includes forming a semiconductor stack having first sacrificial layers and first semiconductor layers laid out alternately. The method also includes patterning the semiconductor stack to form a first fin structure and a second fin structure. The method further includes replacing the second fin structure with a third fin structure having second sacrificial layers and second semiconductor layers laid out alternately. In addition, the method includes removing the first sacrificial layers in the first fin structure and the second sacrificial layers in the third fin structure. The method includes forming a first metal gate stack and a second metal gate stack to wrap around each of the first semiconductor layers in the first fin structure and each of the second semiconductor layers in the third fin structure, respectively. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11211474-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11302580-B2 |
| priorityDate |
2019-08-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |