Method and structures for dual depth oxygen layers in silicon-on-insulator processes
    9.
    发明授权
    Method and structures for dual depth oxygen layers in silicon-on-insulator processes 有权
    硅绝缘体工艺中双重深度氧层的方法和结构

    公开(公告)号:US06774017B2

    公开(公告)日:2004-08-10

    申请号:US10190405

    申请日:2002-07-03

    IPC分类号: H01L2120

    摘要: A semiconductor structure, and associated method of fabrication, comprising a substrate having a continuous buried oxide layer and having a plurality of trench isolation structures. The buried oxide layer may be located at more than one depth within the substrate. The geometry of the trench isolation structure may vary with depth. The trench isolation structure may touch or not touch the buried oxide layer. Two trench isolation structures may penetrate the substrate to the same depth or to different depths. The trench isolation structures provide insulative separation between regions within the substrate and the separated regions may contain semiconductor devices. The semiconductor structure facilitates the providing of digital and analog devices on a common wafer. A dual-depth buried oxide layer facilitates an asymmetric semiconductor structure.

    摘要翻译: 一种半导体结构及其相关制造方法,包括具有连续掩埋氧化物层并具有多个沟槽隔离结构的衬底。 掩埋氧化物层可以位于衬底内的多于一个深度处。 沟槽隔离结构的几何形状可随深度而变化。 沟槽隔离结构可以接触或不接触埋入的氧化物层。 两个沟槽隔离结构可以将衬底穿透到相同的深度或不同的深度。 沟槽隔离结构在衬底内的区域之间提供绝缘分离,并且分离的区域可以包含半导体器件。 半导体结构便于在公共晶片上提供数字和模拟器件。 双深埋入氧化物层有利于非对称半导体结构。

    Simple 4T static ram cell for low power CMOS applications
    10.
    发明授权
    Simple 4T static ram cell for low power CMOS applications 失效
    用于低功耗CMOS应用的简单4T静态柱塞电池

    公开(公告)号:US06614124B1

    公开(公告)日:2003-09-02

    申请号:US09724083

    申请日:2000-11-28

    IPC分类号: H01L2711

    CPC分类号: G11C11/412 H01L27/11

    摘要: An SRAM memory cell device comprises wordline and bitline inputs for enabling read/write access to memory cell contents, and, a diffusion region for maintaining a voltage to preserve memory cell content when the cell is not being accessed. The device further comprises a transistor device having a gate input for receiving a wordline voltage to turn off the transistor device when not performing memory cell read/write access; and, a gate oxide layer formed under the transistor device gate exhibiting resistance property for leaking current therethrough when the wordline voltage is applied to the gate input and the transistor device is off. The diffusion region receives voltage derived from the wordline voltage applied to said gate input to enable retention of said memory cell content in the absence of applied bitline voltage to thereby reduce power consumption.

    摘要翻译: SRAM存储单元器件包括字线和位线输入,用于使得能够对存储单元内容进行读/写访问;以及扩散区,用于在不访问单元时保持电压以保持存储单元内容。 该器件还包括具有栅极输入的晶体管器件,用于在不执行存储器单元读/写访问时接收字线电压以截止晶体管器件; 以及当栅极电压施加到栅极输入并且晶体管器件截止时,形成在晶体管器件栅极下方的用于泄漏电流的电阻性能的栅极氧化层。 扩散区域接收从施加到所述栅极输入端的字线电压导出的电压,以便在没有施加的位线电压的情况下保持所述存储单元的内容从而降低功耗。