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Semiconductor device and method of manufacturing the same

  • US 7,915,615 B2
  • Filed: 07/07/2009
  • Issued: 03/29/2011
  • Est. Priority Date: 02/22/2000
  • Status: Active Grant
First Claim
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1. A display device comprising:

  • a pixel portion comprising;

    a transistor including a gate electrode and a semiconductor layer;

    a first wiring on a same surface as the gate electrode;

    a first electrode over the first wiring, and electrically connected to the first wiring and the semiconductor layer, the first electrode comprising a first titanium film, a first aluminum film over the first titanium film and a second titanium film over the first aluminum film;

    a second electrode on a same surface as the first electrode, and electrically connected to the semiconductor layer; and

    a pixel electrode over the second electrode, and electrically connected to the second electrode; and

    an external input terminal portion comprising;

    a second wiring on the same surface as the gate electrode; and

    a third wiring over the second wiring, and electrically connected to the second wiring, the third wiring comprising a third titanium film, a second aluminum film over the third titanium film and a fourth titanium film over the second aluminum film.

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