Semiconductor device and display unit
AssigneeJoled Inc.
InventorYasuhiro Terai
Life of this patent
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Abstract
A semiconductor device includes a substrate, a first semiconductor auxiliary film, a semiconductor film, a gate insulating film, and a gate electrode. The first semiconductor auxiliary film is provided in a selective region on the substrate. The semiconductor film includes an oxide semiconductor material, and has a low-resistive region in contact with the first semiconductor auxiliary film and a channel region provided in a portion different from the low-resistive region. The gate insulating film covers the semiconductor film from the channel region to at least part of the low-resistive region. The gate electrode is opposed to the channel region of the semiconductor film via the gate insulating film.
Claims8
A semiconductor device comprising:
- a substrate;
- a first auxiliary film in a selective region on the substrate;
- a semiconductor film including an oxide semiconductor material, the semiconductor film having a low-resistive region in contact with the first auxiliary film and a channel region in a portion different from the low-resistive region;
- a gate insulating film on the semiconductor film from the channel region to at least part of the low-resistive region, wherein the first auxiliary film is in contact with a face of the low-resistive region of the semiconductor film closest to the substrate;
- a gate electrode opposed to the channel region of the semiconductor film via the gate insulating film;
- a first electrode on the substrate, the first electrode being electrically coupled to the low-resistive region of the semiconductor film;
- a second electrode including the oxide semiconductor material, the second electrode being opposed to at least part of the first electrode;
- and
- a second auxiliary film including a material identical to a constituent material of the first auxiliary film, the second auxiliary film being in contact with the second electrode, wherein the first electrode, the second auxiliary film, and the second electrode are in order on the substrate.
Dependencies are inferred from the claim text.