A-site and/or b-site modified pbzrtio3 materials and films

    公开(公告)号:AU2234099A

    公开(公告)日:1999-09-06

    申请号:AU2234099

    申请日:1999-01-19

    Abstract: A modified PbZrTiO3 perovskite crystal material thin film, wherein the PbZrTiO3 perovskite crystal material includes crystal lattice A-sites and B-sites at least one of which is modified by the presence of a substituent selected from the group consisting of (i) A-site substituents consisting of Sr, Ca, Ba and Mg, and (ii) B-site substituents selected from the group consisting of Nb and Ta. The perovskite crystal thin film material may be formed by liquid delivery MOCVD from metalorganic precursors of the metal components of the thin film, to form PZT and PSZT, and other piezoelectric and ferroelectric thin film materials. The thin films of the invention have utility in non-volatile ferroelectric memory devices (NV-FeRAMs), and in microelectromechanical systems (MEMS) as sensor and/or actuator elements, e.g., high speed digital system actuators requiring low input power levels.

    A-SITE AND/OR B-SITE MODIFIED PBZRTIO3 MATERIALS AND FILMS
    10.
    发明公开
    A-SITE AND/OR B-SITE MODIFIED PBZRTIO3 MATERIALS AND FILMS 审中-公开
    A-SITE UND / ODER B-SITE MODIFIZIERTE PBZRTIO3-MATERIALIEN UND-FILME

    公开(公告)号:EP1056594A4

    公开(公告)日:2003-08-20

    申请号:EP99902332

    申请日:1999-01-19

    CPC classification number: H01L41/187 C30B25/02 C30B29/32

    Abstract: A modified PbZrTiO3 perovskite crystal material thin film, wherein the PbZrTiO3 perovskite crystal material includes crystal lattice A-sites and B-sites at least one of which is modified by the presence of a substituent selected from the group consisting of (i) A-site substituents consisting of Sr, Ca, Ba and Mg, and (ii) B-site substituents selected from the group consisting of Nb and Ta. The perovskite crystal thin film material may be formed by liquid delivery MOCVD from metalorganic precursors of the metal components of the thin film, to form PZT and PSZT, and other piezoelectric and ferroelectric thin film materials. The thin films of the invention have utility in non-volatile ferroelectric memory devices (NV-FeRAMs), and in microelectromechanical systems (MEMS) as sensor and/or actuator elements, e.g., high speed digital system actuators requiring low input power levels.

    Abstract translation: 一种改性PbZrTiO3钙钛矿晶体材料薄膜,其中所述PbZrTiO3钙钛矿型晶体材料包括晶格A位和B位,其中至少一个是通过存在选自(i)A位点 由Sr,Ca,Ba和Mg组成的取代基,(ii)选自Nb和Ta的B位取代基。 可以通过从薄膜的金属成分的金属有机前体的液体输送MOCVD形成钙钛矿晶体薄膜材料,以形成PZT和PSZT等压电和铁电薄膜材料。 本发明的薄膜在非易失性铁电存储器件(NV-FeRAM)中以及在微机电系统(MEMS)中用作传感器和/或致动器元件,例如需要低输入功率电平的高速数字系统致动器。

Patent Agency Ranking