Patent ID: 6049096
Filing Date: 2000-04-11
Classification: H01L

Abstract:
A monolithic component of protection against electric overloads likely to occur on a conductor in series with which is placed a detection resistor, this component being formed in a substrate of a first conductivity type having an upper surface and a lower surface and including:first and second upper surface metallizations for connection to the terminals of said resistor and a third lower surface metallization for connection to a reference potential;a first vertical cathode-gate thyristor laterally isolated by an isolating wall of the second conductivity type;a second vertical anode-gate thyristor, of the gate current or forward break-over type, the first and second thyristors being formed head-to-tail between the first and third metallizations, the second metallizations corresponding to the gates of these thyristors; andwherein the anode region of the first thyristor, formed on the lower surface side, is separate from the isolating wall and the rear surface of the isolating wall is coated with a portion of isolating layer.