Process for producing an epitaxial layer with laterally varying doping
    1.
    发明授权
    Process for producing an epitaxial layer with laterally varying doping 有权
    用于制造具有横向变化的掺杂的外延层的工艺

    公开(公告)号:US06171935B2

    公开(公告)日:2001-01-09

    申请号:US09317694

    申请日:1999-05-24

    IPC分类号: H01L2120

    摘要: A process for producing an epitaxial layer with laterally varying doping includes the following steps: (a) applying a patterned insulator layer to a semiconductor body; (b) growing a first epitaxial layer on the semiconductor body and the patterned insulator layer so that monocrystalline regions are formed over the semiconductor body and polycrystalline regions are formed over the patterned insulator layer, the angle of inclination (&agr;) of the interface between the monocrystalline regions and the polycrystalline regions depending on the grain size of the polycrystalline regions; (c) removing the polycrystalline regions and the insulator layer, and (d) growing a second epitaxial layer which, together with the monocrystalline regions of the first epitaxial layer, forms the epitaxial layer.

    摘要翻译: 用于制造具有横向变化掺杂的外延层的方法包括以下步骤:(a)将图案化的绝缘体层施加到半导体本体; (b)在半导体主体和图案化的绝缘体层上生长第一外延层,使得在半导体主体上形成单晶区域,并且多晶区域形成在图案化的绝缘体层之上,其中界面的倾斜角(α) 单晶区域和多晶区域取决于多晶区域的晶粒尺寸; (c)去除多晶区域和绝缘体层,以及(d)生长第二外延层,其与第一外延层的单晶区域一起形成外延层。

    Method and timing circuit for generating a switching or control signal
    2.
    发明授权
    Method and timing circuit for generating a switching or control signal 有权
    用于产生开关或控制信号的方法和定时电路

    公开(公告)号:US06734676B2

    公开(公告)日:2004-05-11

    申请号:US09997984

    申请日:2001-11-29

    IPC分类号: F02P1700

    摘要: A method for generating a control signal after a predeterminable period of time is described. The method includes applying a voltage to an inductor at a beginning of a time measurement; and outputting, via a current threshold value detector, the control signal if a current through the inductor exceeds a predeterminable threshold value. The invention also relates to a timing circuit.

    摘要翻译: 描述了在可预定的时间段之后产生控制信号的方法。 该方法包括在时间测量开始时向电感器施加电压; 并且如果通过电感器的电流超过可预定的阈值,则经由电流阈值检测器输出控制信号。 本发明还涉及定时电路。

    Circuit configuration for driving an ignition coil
    3.
    发明授权
    Circuit configuration for driving an ignition coil 有权
    用于驱动点火线圈的电路配置

    公开(公告)号:US06310331B1

    公开(公告)日:2001-10-30

    申请号:US09633708

    申请日:2000-08-07

    IPC分类号: H05B102

    CPC分类号: F02P3/0421 Y10T307/773

    摘要: A circuit configuration for driving an ignition coil includes a first semiconductor switch having a load path connected in series with a primary winding of the ignition coil, and having a control electrode, which is driven in accordance with a first drive signal. The circuit configuration further includes a second semiconductor switch having a load path connected in parallel with the primary winding and having a control electrode, which is driven in accordance with a second drive signal.

    摘要翻译: 用于驱动点火线圈的电路结构包括具有与点火线圈的初级绕组串联连接的负载路径的第一半导体开关,并且具有根据第一驱动信号驱动的控制电极。 电路结构还包括第二半导体开关,其具有与初级绕组并联连接的负载路径,并具有根据第二驱动信号驱动的控制电极。