PIEZOELECTRIC FILM-EQUIPPED SUBSTRATE AND PIEZOELECTRIC ELEMENT

    公开(公告)号:EP4190947A1

    公开(公告)日:2023-06-07

    申请号:EP21850647.5

    申请日:2021-05-26

    发明人: UMEDA, Kenichi

    摘要: There are provided a piezoelectric film-attached substrate and piezoelectric element, which include, on a substrate in the following order, a lower electrode layer, a piezoelectric film containing a perovskite-type oxide containing lead as a main component of an A site, and a buffer layer, where the buffer layer contains a metal oxide represented by M d N 1-d O e . Here, M consists of one or more metal elements substitutable for the A site of the perovskite-type oxide and has an electronegativity of less than 0.95. In a case of 0 12 , t1 = 0.0306, and y0 = 0.59958.

    COMPOSITE SUBSTRATE AND METHOD OF MANUFACTURING COMPOSITE SUBSTRATE

    公开(公告)号:EP3525347A1

    公开(公告)日:2019-08-14

    申请号:EP17858489.2

    申请日:2017-10-05

    摘要: An object of the present invention is to provide a method of manufacturing a composite substrate including a piezoelectric layer with less Li amount variation and a support substrate. A method of manufacturing a composite substrate of the present invention includes a step of performing ion implantation into a piezoelectric substrate, a step of bonding the piezoelectric substrate and the support substrate, a step of separating the bonded substrate, at an ion-implanted portion of the piezoelectric substrate, into the piezoelectric layer bonded to the support substrate and the remaining piezoelectric substrate after the step of bonding the piezoelectric substrate and the support substrate, and a step of diffusing Li into the piezoelectric layer after the separating step.

    A METHOD OF INCREASING THE LUMINESCENCE EFFICIENCY OF TITANIUM-DOPED OXIDE CRYSTAL
    90.
    发明公开
    A METHOD OF INCREASING THE LUMINESCENCE EFFICIENCY OF TITANIUM-DOPED OXIDE CRYSTAL 审中-公开
    一种提高掺钛氧化物晶体发光效率的方法

    公开(公告)号:EP3192897A1

    公开(公告)日:2017-07-19

    申请号:EP17150954.0

    申请日:2017-01-11

    申请人: PRECIOSA, a.s.

    发明人: Kokta, Milan

    IPC分类号: C30B29/20 C30B33/02 C30B29/22

    摘要: A method of increasing the luminescence efficiency of titanium-doped oxide crystal, suitable as a laser material, is disclosed, the method comprising the step of tempering the oxide crystal at a temperature from 1750 °C to 50 °C below the melting point of the oxide crystal in protecting atmosphere containing at least 40 volume percent of hydrogen and containing aluminium suboxide Al 2 O gas with a constant partial pressure.

    摘要翻译: 公开了一种提高适合作为激光材料的掺杂钛的氧化物晶体的发光效率的方法,该方法包括以下步骤:在低于其熔点的1750℃至50℃的温度下对氧化物晶体进行回火 在含有至少40%(体积)氢气并含有低氧化亚铝氧化铝气体的保护气氛中保持恒定分压。