http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2003087087-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_3471963f5d7d826a913f4a7915b1fa95 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H03H9-19 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L41-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L41-09 |
| filingDate | 2001-08-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0ddd31bd326ee7c4f581720b40959fde http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e4a230ef0e0a5c64fdeb9f5bdace3a45 |
| publicationDate | 2003-03-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-2003087087-A |
| titleOfInvention | Crystal oscillator |
| abstract | (57) [Summary] To provide a high-frequency fundamental-wave crystal resonator mounted with a crystal element plate having no vibrating surface in order to suppress spurious vibration in the high-frequency crystal resonator. SOLUTION: A slit is formed in a vibrating surface on a quartz crystal plate by etching to eliminate spurious generated in an inclined portion formed in the crystal orientation of the quartz crystal, and a flat flatness is formed on the vibrating surface on the quartz crystal plate. At the same time, good parallelism with the back surface of the quartz crystal plate is obtained, and the frequency of the required high frequency fundamental wave of the main vibration is obtained. At the same time, since the slits are formed on the vibrating portion of the piezoelectric element plate having a thin plate shape using a photolithography technique, the yield can be improved. When a crystal oscillator is formed using the crystal resonator according to the present invention, a high-stable high-frequency fundamental wave frequency free from unnecessary vibration other than the main vibration and a frequency jump due to generation of spurious components can be obtained, and the overall yield can be improved. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8970316-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9136793-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-4492048-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2017017433-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2012253630-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2016225712-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9225314-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8791766-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9048810-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2016040950-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2005016976-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9923544-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2016225705-A |
| priorityDate | 2001-06-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 35.