| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_36333273e27f0db23ddddbf80ba79ba7 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L29-165
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L21-31111 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L27-0924
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L21-823468
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L21-823431
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L21-823821
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L21-823814
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L29-785
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L29-7848
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L29-6653
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L29-66545
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L21-823864
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L29-0653
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L29-66636
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L29-6656
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L29-66795 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L21-311 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L29-66
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L29-78
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L27-092
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L21-8234
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L21-8238
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L29-06 |
| filingDate |
2020-12-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2022-09-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_482244aca5a86e4371c578705fecea37
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e5ae1321030ea7c8fb285421ec35b82c
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8f29f27e99003eeae44782a2b894bec7
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1de17f6985e6fc1a1989ece0e4146bf1
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_311f6359c6d96510d1fece3bc369b6a1 |
| publicationDate |
2022-09-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-11456295-B2 |
| titleOfInvention |
Air gap formation between gate spacer and epitaxy structure |
| abstract |
A semiconductor device includes a gate stack, an epitaxy structure, a first spacer, a second spacer, and a dielectric residue. The gate stack is over a substrate. The epitaxy structure is formed raised above the substrate. The first spacer is on a sidewall of the gate stack. The first spacer and the epitaxy structure define an air gap therebetween. The second spacer seals the air gap between the first spacer and the epitaxy structure. The dielectric residue is in the air gap and has an upper portion and a lower portion under the upper portion. The upper portion of the dielectric residue has higher etch resistance to phosphoric acid than that of the lower portion of the dielectric residue. |
| priorityDate |
2018-10-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |