| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_242cc8d15c771395b920cc7de452da6a |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L29-2003 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L21-02458
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L29-1075
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L21-02609
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L21-02494
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L21-02507
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L29-872
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C30B29-403
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L21-02381
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L21-0262
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L29-7786
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L21-02516
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L29-155
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L21-0254
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C30B25-183 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C30B25-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L29-778
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L29-872
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L29-812
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L21-205
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L21-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L21-338
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L29-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L29-15
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L29-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C30B29-40
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C30B29-38 |
| filingDate |
2011-03-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f0c138a78f2033b0da139a4ed2704110
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3fa0fb83d8f461414f80f80d0054c8bc
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_97cf5f5b970495ec2740b4829eefdff3
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e53fd8980f66ae90bf15b9e82a51f59e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b521bb939ec938999b64a68426460e9e |
| publicationDate |
2013-03-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-2565906-A1 |
| titleOfInvention |
Epitaxial substrate and process for producing epitaxial substrate |
| abstract |
Provided is a crack-free epitaxial substrate having excellent breakdown voltage properties in which a silicon substrate is used as a base substrate thereof. An epitaxial substrate in which a group of group-III nitride layers are formed on a base substrate made of (111)-oriented single crystal silicon such that a (0001) crystal plane of the group of group-III nitride layers is substantially in parallel with a substrate surface of the base substrate includes: a buffer layer including a composition modulation layer that is formed of a first composition layer made of AlN and a second composition layer made of Al x Ga 1-x N (0≤x<1) being alternately laminated; and a crystal layer formed on the buffer layer. The relationship of x(1)≥x(2)≥...≥x(n-1)≥x(n) and x(1)>x(n) is satisfied, where n represents the number of laminations of each of the first composition layer and the second composition layer (n is a natural number equal to or greater than two), and x(i) represents the value of x in i-th one of the second composition layers as counted from the base substrate side, to thereby cause a compressive strain to exist such that the compressive strain increases in a portion more distant from the base substrate. |
| priorityDate |
2010-04-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |