| US 11,812,665 B1 | ||
| Hard piezoelectric ceramic composition for multilayer piezoelectric transformers | ||
| Ahmet Erkan Gurdal, State College, PA (US); Sinan Dursun, State College, PA (US); Safakcan Tuncdemir, State College, PA (US); and Clive Randall, State College, PA (US) | ||
| Assigned to QorTek, Inc., Williamsport, PA (US) | ||
| Filed by QorTek, Inc., Williamsport, PA (US) | ||
| Filed on May 3, 2019, as Appl. No. 16/402,265. | ||
| Claims priority of provisional application 62/669,504, filed on May 10, 2018. | ||
| Int. Cl. H01L 41/107 (2006.01); C04B 35/499 (2006.01); C04B 35/622 (2006.01); C04B 35/64 (2006.01); H10N 30/40 (2023.01); H10N 30/053 (2023.01); H10N 30/50 (2023.01); H10N 30/87 (2023.01); H10N 30/853 (2023.01) | ||
| CPC H10N 30/40 (2023.02) [C04B 35/499 (2013.01); C04B 35/62222 (2013.01); C04B 35/64 (2013.01); H10N 30/053 (2023.02); H10N 30/505 (2023.02); H10N 30/8554 (2023.02); H10N 30/871 (2023.02); H10N 30/872 (2023.02); H10N 30/877 (2023.02); C04B 2235/3203 (2013.01); C04B 2235/3234 (2013.01); C04B 2235/3255 (2013.01); C04B 2235/326 (2013.01); C04B 2235/3267 (2013.01); C04B 2235/3296 (2013.01); C04B 2235/442 (2013.01)] | 21 Claims |
|
1. A composition, comprising:
a Pb/Ni/Nb - Pb/Mg/W - Pb/Zr/Ti mixed oxide; and 0.1 to about 0.5 wt.% MnO2, based on the weight of the composition. |