Chemical vapor deposition of PB5GE3O11 thin film for ferroelectric applications
    2.
    发明授权
    Chemical vapor deposition of PB5GE3O11 thin film for ferroelectric applications 失效
    用于铁电应用的PB5GE3O11薄膜的化学气相沉积

    公开(公告)号:US06242771B1

    公开(公告)日:2001-06-05

    申请号:US09291688

    申请日:1999-04-13

    IPC分类号: H01L29788

    摘要: A method of forming a semiconductor structure having a ferroelectric memory (FEM) gate unit on a substrate of single crystal silicon includes: forming a silicon device area for the FEM gate unit; treating the device area to form area for a source, gate and drain region; depositing an FEM gate unit over the gate junction region, including depositing a lower electrode, depositing a c-axis oriented Pb5Ge3O11 FE layer by Chemical vapor deposition (CVD), and depositing an upper electrode; and depositing an insulating structure about the FEM gate unit. A ferroelectric memory (FEM) cell includes: a single-crystal silicon substrate including an active region having source, gate and drain regions therein; a FEM gate unit including a lower electrode, a c-axis oriented Pb5Ge3O11 FE layer formed by CVD and an upper electrode; an insulating layer, having an upper surface, overlying the junction regions, the FEM gate unit and the substrate; and a source, gate and drain electrode.

    摘要翻译: 在单晶硅的衬底上形成具有铁电存储(FEM)栅极单元的半导体结构的方法包括:形成用于FEM门单元的硅器件区域; 处理器件区域以形成源极,栅极和漏极区域; 在所述栅极结区域上沉积FEM栅极单元,包括沉积下电极,通过化学气相沉积(CVD)沉积c轴取向的Pb5Ge3O11FE层,以及沉积上电极; 以及围绕所述FEM门单元沉积绝缘结构。 铁电存储器(FEM)单元包括:单晶硅衬底,其包括其中具有源极,栅极和漏极区域的有源区; 包括下电极,由CVD形成的c轴取向Pb5Ge3O11FE层和上电极的有限元门单元; 绝缘层,具有覆盖接合区域的上表面,FEM门单元和衬底; 以及源极,栅极和漏极。