31.
    发明专利
    未知

    公开(公告)号:DE69325994T2

    公开(公告)日:1999-12-23

    申请号:DE69325994

    申请日:1993-05-19

    Abstract: An integrated structure current sensing resistor for a power MOS device consists of a doped region (20,21,50) extending from a deep body region (2) of at least one cell (1a) of a first plurality of cells, constituting a main power device, to a deep body region (2) of a corresponding cell (1b) of a second smaller plurality of cells constituting a current sensing device.

    32.
    发明专利
    未知

    公开(公告)号:DE69325645T2

    公开(公告)日:1999-12-09

    申请号:DE69325645

    申请日:1993-04-21

    Abstract: An integrated structure protection device suitable for protecting a power MOS device from electro static discharges comprises a junction diode (9) comprising a first electrode made of a highly doped region (12) of a first conductivity type surrounded by a body region (11) of a second conductivity type and representing a second electrode of the junction diode (9), which in turn is surrounded by a highly doped deep body region (10) of said second conductivity type. The highly doped region (12) is connected to a polysilicon gate layer (7) representing the gate of the power MOS device, while the deep body region (10) is connected to a source region (6) of the power MOS.

    33.
    发明专利
    未知

    公开(公告)号:DE69131390T2

    公开(公告)日:1999-11-18

    申请号:DE69131390

    申请日:1991-04-11

    Abstract: The invention relates to a process for forming a buried drain or collector region in monolithic semiconductor devices comprising an integrated control circuit and one or more power transistors with vertical current flow integrated in the same chip. The process allows optimization of the current-carrying capacity and the series drain resistance of the power stage and operating voltage in comparison with known structures by provision of one or more regions of high dopant concentration defined after growth of a first epitaxial layer.

    36.
    发明专利
    未知

    公开(公告)号:DE69213675T2

    公开(公告)日:1997-02-27

    申请号:DE69213675

    申请日:1992-11-27

    Abstract: In the device there are present a first, second and third switch designed to connect a node of the insulation region with a ground node, the collector or drain of the power transistor and a region of a control circuit transistor respectively. The dynamic insulation circuit of the control circuit comprises a pilot circuit which controls: closing of the first switch when the potential of the ground node (or insulation region) is less than the potential of the collector or drain region of the power transistor and the potential of the control circuit region, closing of the second switch and opening of the first when the potential of the collector or drain region of the power transistor is less than the potential of the ground node (or the insulation region), closing of the third switch and opening of the first when the potential of said control circuit region is less than the potential of the ground node (or the insulation region).

    39.
    发明专利
    未知

    公开(公告)号:ITMI913265D0

    公开(公告)日:1991-12-05

    申请号:ITMI913265

    申请日:1991-12-05

    Abstract: In the device there are present a first, second and third switch designed to connect a node of the insulation region with a ground node, the collector or drain of the power transistor and a region of a control circuit transistor respectively. The dynamic insulation circuit of the control circuit comprises a pilot circuit which controls: closing of the first switch when the potential of the ground node (or insulation region) is less than the potential of the collector or drain region of the power transistor and the potential of the control circuit region, closing of the second switch and opening of the first when the potential of the collector or drain region of the power transistor is less than the potential of the ground node (or the insulation region), closing of the third switch and opening of the first when the potential of said control circuit region is less than the potential of the ground node (or the insulation region).

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