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Semiconductor device having an electrical connection between a control electrode and a resistive layer

  • US 5,767,579 A
  • Filed: 08/02/1996
  • Issued: 06/16/1998
  • Est. Priority Date: 12/21/1995
  • Status: Expired due to Term
First Claim
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1. A semiconductor device, comprising:

  • a suspending unit;

    a resin case being box-shaped and electrically insulative and having a bottom provided with said suspending unit;

    a circuit board provided on said suspending unit, having a prescribed circuit pattern;

    at least one switching element provided on said circuit board, having a control electrode;

    a signal terminal plate for introducing a control signal to be applied to said control electrode of said at least one switching element; and

    a resistor electrically interposed between said control electrode and said signal terminal plate,wherein said resistor includes,an insulator plate;

    a resistive layer made of thin metal film and selectively provided on one main surface of said insulator plate;

    a first electrode layer provided on only said one main surface of said insulator plate and connected to said resistive layer, serving as one of current input/output portions of said resistive layer; and

    a second electrode layer extending from said one main surface to the other main surface of said insulator plate and connected to said resistive layer, serving as the other current input/output portion of said resistive layer, andwherein an electrical connection between said control electrode and said resistive layer is made by bonding a wire line direct between said control electrode and said first electrode layer.

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