1. A semiconductor device comprising:
an isolation region which divides a semiconductor layer into a plurality of element formation regions;
an insulating layer formed on a top surface of the semiconductor layer; and
a wiring layer traversing over the isolation region, and wired from one to other one of the element formation regions on a top surface of the insulating layer
and further comprising in the insulating layer under the wiring layer:
a first conductive plate arranged in a manner covering over a junction region between the isolation region and the semiconductor layer, and electrically connected to the isolation region; and
a second conductive plate arranged, in a floating state, between the first conductive plate and the wiring layer,
wherein at least a part of a region of the second conductive plate is opposite each of the first conductive plate and the wiring layer.
2. The semiconductor device according to claim 1, wherein the second conductive plate is extended under the wiring layer in a direction separating away from the isolation region, and one edge of the second conductive plate is more distant from the isolation region than one edge of the first conductive plate is.
3. The semiconductor device according to any one of claims 1 and 2, wherein the second conductive plate has an electric potential which is 0.3 to 0.6 times of an electric potential applied to the wiring layer.
4. The semiconductor device according to any one of claims 1 and 2, wherein the first conductive plate is formed of a polysilicon film.
5. The semiconductor device according to any one of claims 1 and 2, wherein the first conductive plate and the second conductive plate are formed under the wiring layer to which an electric potential higher than that of the isolation region is applied.
6. The semiconductor device according to claim 1, wherein the first conductive plate and the second conductive plate are separated by the insulating layer.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A turbomachine comprising:
a compressor;
a turbine; and
a combustor operatively coupled to the compressor and the turbine, the combustor including a combustor casing having a flange, an outer surface and an inner surface that defines an internal passage, the combustor casing including an extruded fluid manifold mounted to the outer surface, the extruded fluid manifold including first and second walls integrally formed with a third, connecting, wall, the first wall including a first mounting element and the second wall including a second mounting element, the first mounting element extending axially along the combustor casing away from the first wall and the second mounting element extending axially along the combustor casing away from the second wall and the first mounting element, the extruded fluid manifold being joined to the outer surface of the combustor casing through the first and second mounting elements, the extruded fluid manifold defining a fluid plenum that extends radially about the combustor casing.
2. The turbomachine according to claim 1, wherein the extruded fluid manifold includes an anti-corrosive layer, the anti-corrosive layer being non-reactive with fuel.
3. The turbomachine according to claim 2, wherein the anti-corrosive layer comprises stainless steel.
4. The turbomachine according to claim 2, wherein the anti-corrosive layer comprises a steel alloy including chromium.
5. The turbomachine according to claim 1, wherein the extruded fluid manifold includes at least one mounting member, the at least one mounting member extending axially outward from one of the first and second walls at the third wall.
6. The turbomachine according to claim 5, wherein the at least one mounting member is substantially co-planar with the third wall.
7. The turbomachine according to claim 5, further comprising: a bridge member extending between the at least one mounting member and the flange, the bridge member, defining, at least in part, a passage that extends about the combustor casing.
8. The turbomachine according to claim 1, wherein the extruded fluid manifold includes a first extrusion section and a second extrusion section, the first extrusion section being joined to the second extrusion section to form the extruded fluid manifold.
9. The turbomachine according to claim 1, further comprising: at least one fluid passage formed in the combustor casing, the at least one fluid passage fluidly coupling the fluid plenum and the internal passage.
10. The turbomachine according to claim 1, further comprising: a fluid inlet member mounted to the extruded fluid manifold, the fluid inlet member being fluidly connected to the fluid plenum.
11. A turbomachine combustor casing comprising:
a flange, an outer surface and an inner surface that defines an internal passage; and
an extruded fluid manifold mounted to the outer surface, the extruded fluid manifold including first and second walls integrally formed with a third, connecting, wall, the first wall including a first mounting element and the second wall including a second mounting element, the first mounting element extending axially along the combustor casing away from the first wall and the second mounting element extending axially along the combustor casing away from the second wall and the first mounting element, the extruded fluid manifold being joined to the outer surface of the combustor casing through the first and second mounting elements, the extruded fluid manifold defining a fluid plenum that extends radially about the combustor casing.
12. The turbomachine combustor casing according to claim 11, wherein the extruded fluid manifold includes an anti-corrosive layer, the anti-corrosive layer being non-reactive with fluid.
13. The turbomachine combustor casing according to claim 12, wherein the anti-corrosive layer comprises at least one of stainless and a steel alloy including chromium.
14. The turbomachine combustor casing according to claim 11, wherein the extruded fluid manifold includes at least one mounting member, the at least one mounting member extending axially outward from one of the first and second walls at the third wall.
15. The turbomachine combustor casing according to claim 14, wherein the at least one mounting member is substantially co-planar with the third wall.
16. The turbomachine combustor casing according to claim 14, further comprising: a bridge member extending between the at least one mounting member and the flange, the bridge member, defining, at least in part, a passage that extends about the combustor casing.
17. The turbomachine combustor casing according to claim 11, wherein the extruded fluid manifold includes a first extrusion section and a second extrusion section, the first extrusion section being joined to the second extrusion section to form the extruded fluid manifold.
18. The turbomachine combustor casing according to claim 11, further comprising: at least one fluid passage formed in the combustor casing, the at least one fluid passage fluidly coupling the fluid plenum and the internal passage.
19. A method of forming a turbomachine combustor casing having an outer surface and an inner surface that defines an internal passage, the method comprising:
extruding a fluid manifold having first and second walls integrally formed with a third wall, wherein a first mounting element is formed with the first wall, the first mounting element extending outward from an end portion of the first wall spaced from the third wall, and a second mounting element is formed with the second wall, the second mounting element extending outward from an end portion of the second wall spaced from the third wall, the second mounting element extending in a direction opposite the first mounting element; and
mounting the fluid manifold to the outer surface of the casing through the first and second mounting elements, the first, second, and third walls forming a fluid plenum.
20. The method of claim 19, wherein extruding the fluid manifold having first and second walls integrally formed with a third wall includes extruding the first second and third walls with an integrally formed anti-corrosive layer.