Silicon controlled rectifier with stress-enhanced adjustable trigger voltage

    公开(公告)号:GB2505853A

    公开(公告)日:2014-03-12

    申请号:GB201400368

    申请日:2012-06-01

    Applicant: IBM

    Abstract: Device structures, fabrication methods, operating methods, and design structures for a silicon controlled rectifier. The method includes applying a mechanical stress to a region of a silicon controlled rectifier (SCR) at a level sufficient to modulate a trigger current of the SCR. The device and design structures include an SCR (62) with an anode (63), a cathode (65), a first region (14), and a second region (16) of opposite conductivity type to the first region. The first and second regions of the SCR are disposed in a current-carrying path between the anode and cathode of the SCR. A layer (26) is positioned on a top surface of a semiconductor substrate (30) relative to the first region and configured to cause a mechanical stress in the first region of the SCR at a level sufficient to modulate a trigger current of the SCR.

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