| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5c24684033fba97d1ad845ce453a57e3 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C03C2214-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H05K1-0306 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C03C14-004 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H05K1-03 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C03C14-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B35-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B35-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H05K3-46
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C03C10-08 |
| filingDate |
1989-07-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_532c5b677b13bc67fd6de498ec89590a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7098f441b58208a24b7be30a75ee5152 |
| publicationDate |
1991-01-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
DE-3923491-A1 |
| titleOfInvention |
CERAMIC COMPOSITION AND THEIR USE |
| abstract |
(A) a low temp. sintering ceramic compsn. consists of (i) 40-90 wt. % finely divided refractory material with a thermal expansion coefficient (0-400 deg.C) of max. 5 x 10 power (-6) k-1 and (ii) 10-60 wt. % finely divided glass with a softening pt. of 650-850 deg.C a thermal expansion coefficient similar to that of the refractory material and a dielectric constant (10 poewr (6) Hz, 20 deg.C) of below 5. The refractory material has the compsn. (by wt.) 14.7-16.1% MgO, 36-8-40.8% l203, and 43.8-47.8% Si02. USE/ADVANTAGE - The ceramic is useful for prodn. of microelectronics substrates and multilayer housings use of the refractory material instead of the usual cordierite gives improved electrical, mechanical and chemical properties. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-0218300-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0478971-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0478971-A2 |
| priorityDate |
1989-07-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |