Sol-gel precursor and method for formation of ferroelectric materials for integrated circuits
    5.
    发明授权
    Sol-gel precursor and method for formation of ferroelectric materials for integrated circuits 失效
    溶胶凝胶前体和用于形成集成电路的铁电材料的方法

    公开(公告)号:US06337032B1

    公开(公告)日:2002-01-08

    申请号:US09504954

    申请日:2000-02-16

    IPC分类号: H01L2102

    摘要: A sol-gel precursor mixture for forming a perovskite ferroelectric material and a method for forming a ferroelectric material are provided. The precursor solution comprises a sol-gel formulation of a mixture of an inorganic salt of at least one metal, and metal-organic compounds of other constituent metals in a suitable pH controlled aqueous solvent mixture to form a stable, clear sol-gel mixture. The precursor solution and method provides for formation of thin layers of other ferroelectric dielectrics and piezoelectric materials, particularly lead containing materials, for application including non-volatile DRAMs, optoelectronic devices relying on non-linear optical properties, and piezoelectric devices, and is compatible with processing for submicron device structures for bipolar, CMOS or bipolar CMOS circuits.

    摘要翻译: 提供了一种用于形成钙钛矿铁电材料的溶胶 - 凝胶前体混合物和形成铁电体材料的方法。 前体溶液包含在合适的pH控制的含水溶剂混合物中的至少一种金属的无机盐和其它组成金属的金属有机化合物的混合物的溶胶 - 凝胶制剂,以形成稳定的透明溶胶 - 凝胶混合物。 前体溶液和方法提供用于形成其它铁电电介质和压电材料,特别是含铅材料的薄层,用于包括非易失性DRAM,依赖于非线性光学性质的光电器件和压电器件,并且与 用于双极,CMOS或双极CMOS电路的亚微米器件结构的处理。

    Thermionic emitter of lanthanum strontium vanadates
    6.
    发明授权
    Thermionic emitter of lanthanum strontium vanadates 失效
    镧锶钒酸盐的热离子发射体

    公开(公告)号:US3944866A

    公开(公告)日:1976-03-16

    申请号:US458849

    申请日:1974-04-08

    申请人: Michael Sayer

    发明人: Michael Sayer

    CPC分类号: H01J1/144

    摘要: A thermionic emitter for apparatus such as electron microscopes, scanning electron microscopes, and high power vacuum tubes which require a source of electrons formed from lanthanum strontium vanadate which is prepared from the compounds La.sub.(1.sub.-x) Sr.sub.(x) VO.sub.3, where x is the fraction of strontium (Sr) incorporated into LaVO.sub.3. The value of x lies between 0.1 and 0.4.

    摘要翻译: 一种用于诸如电子显微镜,扫描电子显微镜和高功率真空管的装置的热离子发射器,其需要由化合物La(1-x)Sr(x)VO 3制备的钒酸镧锶形成的电子源,其中x 是掺入LaVO3中的锶(Sr)的分数。 x的值在0.1和0.4之间。