摘要:
According to one embodiment, a method for manufacturing a semiconductor device is disclosed. The method includes forming a co-catalyst layer and catalyst layer above a surface of a semiconductor substrate. The co-catalyst layer and catalyst layer have fcc structure. The fcc structure is formed such that (111) face of the fcc structure is to be oriented parallel to the surface of the semiconductor substrate. The catalyst includes a portion which contacts the co-catalyst layer. The portion has the fcc structure. An exposed surface of the catalyst layer is planarized by oxidation and reduction treatments. A graphene layer is formed on the catalyst layer.
摘要:
According to one embodiment, a semiconductor device includes a first insulating layer on an underlying layer, a first trench formed in the first insulating layer, and a first graphene layer provided in the first trench. The first trench comprises a bottom surface on the underlying and two side surfaces joined to the bottom surface, formed into a U-shape. The first graphene layer has a stacked structure including a plurality of graphene sheets. The plurality of graphene sheets each include a depression in a central portion. Portions of the graphene sheets located in an edge of the first graphene layer are each extended upward, which is in a direction opposite to the bottom surface.
摘要:
A semiconductor device includes a first wiring comprising a first conductive material on a semiconductor layer, a second wiring comprising the first conductive material on the semiconductor layer, a third wiring comprising a second conductive material different from the first conductive material, and an insulation film on the semiconductor layer between the first wiring and the second wiring and between the second wiring and the third wiring. The second wiring is provided on at least two sides of the third wiring, and a mean free path of free electrons in the first conductive material is shorter than a mean free path of free electrons in the second conductive material, or the first conductive material shows quantized conduction and the second conductive material does not show quantized conduction. The first wiring, the second wiring, the third wiring, and the insulation film are in one wiring layer provided on the semiconductor layer.
摘要:
The sensor includes a first graphene film that is provided on the insulating layer so as to be located in a flow path of a liquid containing the detection target substance, the first graphene film having a first edge that is parallel with a first direction that is along the flow path and a first edge that is parallel with a second direction that is different from the first direction, and the first graphene film having the shape of a band that extends in the second direction. The sensor includes a first electrode that is electrically connected to the first edge of the first graphene film that is parallel with the first direction. The sensor includes a second electrode that is electrically connected to a second edge of the first graphene film that is opposed to the first edge that is parallel with the first direction.
摘要:
According to one embodiment, a semiconductor device includes an insulating film, a catalytic layer and a wiring layer. The insulating film has a hole. The catalytic layer is formed at the bottom of the hole, at the peripheral wall of the hole, and on the upper surface of the insulating film outside the hole. A contact is formed of a carbon nanotube provided on the portion of the catalytic layer at the bottom of the hole. The wiring layer is formed of graphene and provided on the catalytic layer outside the hole in contact with the carbon nanotube. The catalytic layer at the bottom of the hole is a perforated film, and the catalytic layer outside the hole is a continuous film.
摘要:
According to one embodiment, a semiconductor device includes a catalyst underlying layer formed on a substrate including semiconductor elements formed thereon and processed in a wiring pattern, a catalyst metal layer that is formed on the catalyst underlying layer and whose width is narrower than that of the catalyst underlying layer, and a graphene layer growing with a sidewall of the catalyst metal layer set as a growth origin and formed to surround the catalyst metal layer.
摘要:
In the manufacturing method of a semiconductor device according to the present embodiment, a resist is supplied on a base material. A template including a first template region having a device pattern and a second template region being adjacent to the device pattern and having supporting column patterns is pressed against the resist on the base material. The resist is cured, thereby transferring the device pattern to the resist on a first material region of the base material corresponding to the first template region and at the same time transferring the supporting column patterns to the resist on a second material region of the base material corresponding to the second template region to form supporting columns. The supporting columns are contacted with the first template region when the device pattern is transferred to a resist supplied to the second material region.
摘要:
According to one embodiment, a semiconductor device includes a graphene interconnect, an insulation film formed on the graphene interconnect, and a via conducting portion formed in a via hole provided in the graphene interconnect and the insulation film.
摘要:
According to one embodiment, a semiconductor device includes a semiconductor substrate provided with a lower interconnect layer formed thereon, and having a device region and a mark formation region, a CNT via structure formed in the device region such that it contacts the lower interconnect layer, a first mark formed in the mark formation region, formed by embedding carbon nanotubes, and formed in the same layer as the CNT via structure, a second mark formed in the mark formation region of the semiconductor substrate, formed with no carbon nanotubes, and formed in the same layer as the CNT via structure and the first mark, and an interconnect layer formed on the CNT via structure and the first and second marks, and electrically connected to the CNT via structure.