Carrier coupler for thyristor-based semiconductor device
    9.
    发明授权
    Carrier coupler for thyristor-based semiconductor device 失效
    用于晶闸管的半导体器件的载流子耦合器

    公开(公告)号:US06756612B1

    公开(公告)日:2004-06-29

    申请号:US10282331

    申请日:2002-10-28

    IPC分类号: H01L2974

    摘要: Switching times of a thyristor-based semiconductor device are improved by enhancing carrier drainage from a buried thyristor-emitter region. According to an example embodiment of the present invention, a conductive contact extends to a doped well region buried in a substrate and is adapted to drain carriers therefrom. The device includes a thyristor body having at least one doped emitter region buried in the doped well region. A conductive thyristor control port is adapted to capacitively couple to the thyristor body and to control current flow therein. With this approach, the thyristor can be rapidly switched between resistance states, which has been found to be particularly useful in high-speed data latching implementations including but not limited to memory cell applications.

    摘要翻译: 通过增强从掩埋晶闸管 - 发射极区域的载流子排放,可以改善晶闸管基半导体器件的开关时间。 根据本发明的示例性实施例,导电接触延伸到掩埋在衬底中的掺杂阱区,并且适于从其引出载流子。 该器件包括晶体管本体,其具有埋在掺杂阱区中的至少一个掺杂射极区。 导电晶闸管控制端口适于电容耦合到晶闸管主体并控制其中的电流。 通过这种方法,晶闸管可以在电阻状态之间快速切换,这已经被发现在包括但不限于存储器单元应用的高速数据锁存实现中特别有用。

    Low cost dielectric isolation method for integration of vertical power MOSFET and lateral driver devices
    10.
    发明授权
    Low cost dielectric isolation method for integration of vertical power MOSFET and lateral driver devices 有权
    用于集成垂直功率MOSFET和横向驱动器件的低成本介质隔离方法

    公开(公告)号:US07049677B2

    公开(公告)日:2006-05-23

    申请号:US10767384

    申请日:2004-01-28

    IPC分类号: H01L29/00

    摘要: A semiconductor device has a driver device (10) in proximity to a power device (12). In making the semiconductor device, an N+ layer (24) is formed on a substrate (22). A portion of the N+ layer is removed, substantially down to the substrate, to provide a layer offset (28) between the driver device area and power device area. An epi region of uniform thickness is formed over the driver device and power device areas. A portion of the epi layer is removed to provide another layer offset (70). An oxide layer (68) of uniform thickness is formed over the epi region. The oxide layer is planarized to remove oxide layer over the N+ layer. An oxide-filled trench (80) is formed between the driver device and the power device. The oxide-filled trench extends down to the oxide layer to isolate the driver device from the power device.

    摘要翻译: 半导体器件具有靠近功率器件(12)的驱动器器件(10)。 在制造半导体器件时,在衬底(22)上形成N +层(24)。 N +层的一部分基本上被去除到衬底,以在驱动器器件区域和功率器件区域之间提供层偏移(28)。 在驱动器设备和功率器件区域上形成均匀厚度的外延区域。 去除外延层的一部分以提供另一层偏移(70)。 在epi区域上形成均匀厚度的氧化物层(68)。 将氧化物层平坦化以除去N +层上的氧化物层。 在驱动器装置和功率装置之间形成氧化物填充的沟槽(80)。 氧化物填充的沟槽向下延伸到氧化物层以将驱动器器件与功率器件隔离。