http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2018049899-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c97f90ab12b35b650d5fd039ed7a41a5 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L41-257 |
| filingDate | 2016-09-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9ca7834e9b9361a9154a2ffe415bba25 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b13e51b262e05284c49ec3f5e202b9ae |
| publicationDate | 2018-03-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-2018049899-A |
| titleOfInvention | Method for manufacturing piezoelectric element |
| abstract | Disclosed is a piezoelectric element having a piezoelectric body that realizes high piezoelectric characteristics with high reproducibility even in a piezoelectric body having a large coercive electric field. In a polarization processing step of a piezoelectric body in a piezoelectric element, positive and negative polarization inversion voltages are applied to the piezoelectric body maintained at the polarization processing temperature a plurality of times, and the polarization inversion charge amount of the piezoelectric body by applying the polarization inversion voltage. Then, when the piezoelectric body reaches electrical saturation by the nth application of the polarization inversion voltage, for example, the absolute value of the n (n ≧ 2) th polarization inversion charge amount is n−1 or earlier. When the absolute value of the polarization reversal charge amount becomes 110% or less of the absolute value, a polarization voltage is continuously applied to the piezoelectric body to perform polarization processing of the piezoelectric body. [Selection] Figure 1 |
| priorityDate | 2016-09-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 15.