Semiconductor device
First Claim
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1. A semiconductor device comprising:
- an oxide semiconductor film including a first region and a second region;
a first electrode in contact with the oxide semiconductor film;
a second electrode in contact with the oxide semiconductor film;
a gate insulating film adjacent to the oxide semiconductor film; and
a gate electrode adjacent to the oxide semiconductor film with the gate insulating film therebetween,wherein the gate electrode is closer to the first electrode than to the second electrode,wherein the first region is overlapped with the gate electrode, andwherein the second region is between the gate electrode and the second electrode.
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Abstract
It is an object to reduce concentration of an electric field on an end of a drain electrode of a semiconductor device. A semiconductor device includes an oxide semiconductor film including a first region and a second region; a pair of electrodes which is partly in contact with the oxide semiconductor film; a gate insulating film over the oxide semiconductor film; and a gate electrode that overlaps with part of one of the pair of electrodes and the first region with the gate insulating film provided therebetween. At least part of the first region and part of the second region are between the pair of electrodes. The gate electrode does not overlap with the other of the pair of electrodes.
121 Citations
33 Claims
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1. A semiconductor device comprising:
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an oxide semiconductor film including a first region and a second region; a first electrode in contact with the oxide semiconductor film; a second electrode in contact with the oxide semiconductor film; a gate insulating film adjacent to the oxide semiconductor film; and a gate electrode adjacent to the oxide semiconductor film with the gate insulating film therebetween, wherein the gate electrode is closer to the first electrode than to the second electrode, wherein the first region is overlapped with the gate electrode, and wherein the second region is between the gate electrode and the second electrode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A semiconductor device comprising:
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an oxide semiconductor film including a first region and a second region; a first electrode in contact with the oxide semiconductor film; a second electrode in contact with the oxide semiconductor film; a gate insulating film adjacent to the oxide semiconductor film; and a gate electrode adjacent to the oxide semiconductor film with the gate insulating film therebetween, wherein the gate insulating film is on and in contact with the oxide semiconductor film, wherein the gate electrode is on and in contact with the gate insulating film, wherein the gate electrode is closer to the first electrode than to the second electrode, wherein the first region is overlapped with the gate electrode, and wherein the second region is between the gate electrode and the second electrode. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A semiconductor device comprising:
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an oxide semiconductor film including a first region and a second region; a first electrode in contact with the oxide semiconductor film; a second electrode in contact with the oxide semiconductor film; a gate insulating film adjacent to the oxide semiconductor film; and a gate electrode adjacent to the oxide semiconductor film with the gate insulating film therebetween, wherein the gate insulating film is on and in contact with the gate electrode, wherein the oxide semiconductor film is on and in contact with the gate insulating film, wherein the gate electrode is closer to the first electrode than to the second electrode, wherein the first region is overlapped with the gate electrode, and wherein the second region is between the gate electrode and the second electrode. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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Specification