摘要:
A memory includes a first conductive-type first diffusion layer on the semiconductor substrate; second conductive-type bodies on the first diffusion layer(s); first conductive-type second diffusion layers on the bodies; first gate dielectric films comprising ferroelectric films and provided on first side surfaces of the bodies; second gate dielectric films comprising ferroelectric films and provided on second side surfaces of the bodies; first gate electrodes on the first gate dielectric film; and second gate electrodes on the second gate dielectric film, wherein the first and the second diffusion layers, the body, the first and the second gate dielectric films, and the first and the second gate electrodes constitute memory cells, and each of the memory cells stores a plural pieces of logical data depending on a polarization state of the first gate dielectric film and on a polarization state of the second gate dielectric film.
摘要:
A memory includes memory cells on a semiconductor layer, in which each of the memory cells includes a source layer and a drain layer in the semiconductor layer; an electrically floating body region provided in the semiconductor layer between the source layer and the drain layer and configured to accumulate or discharge electric charges in order to store logical data; a gate dielectric film provided on the body region and comprising a ferroelectric film with polarization characteristics; and a gate electrode provided on the gate dielectric film above the body region, wherein each memory cell stores a plurality of logical data depending on an amount of electric charges accumulated in the body region and on a polarization state of the ferroelectric film.
摘要:
A semiconductor device comprises a semiconductor substrate; an embedded insulating layer provided on the semiconductor substrate; a semiconductor layer provided on the embedded insulating layer; a transistor including a first conductivity type source layer formed within the semiconductor layer, a first conductivity type drain layer formed in the semiconductor layer, and a channel forming region between the source layer and the drain layer; and an embedded insulating layer protective diode including a second conductivity type first diffusion layer and a first conductivity type second diffusion layer, the first diffusion layer being at the same potential as a semiconductor substrate region immediately below the channel forming region, the second diffusion layer being provided adjacently to the first diffusion layer and electrically connected to at least one of the source layer, the drain layer and the channel forming region.
摘要:
A semiconductor device includes first and second semiconductor layers and first and second MOS transistors. The first semiconductor layer is provided on and electrically connected to the semiconductor substrate. The second semiconductor layer is provided near the first semiconductor layer and formed above the semiconductor substrate via one of an insulating film and a cavity. The first and second MOS transistors are respectively provided on the first and second semiconductor layers, and each has a gate electrode arranged parallel to a boundary between the first and second semiconductor layers.
摘要:
This disclosure concerns a semiconductor memory device including bit lines; word lines; semiconductor layers arranged to correspond to crosspoints of the bit lines and the word lines; bit line contacts connecting between a first surface region and the bit lines, the first surface region being a part of a surface region of the semiconductor layers directed to the word lines and the bit lines; and a word-line insulating film formed on a second surface region adjacent to the first surface region, the second surface region being a part of out of the surface region, the word-line insulating film electrically insulating the semiconductor layer and the word line, wherein the semiconductor layer, the word line and the word-line insulating film form a capacitor, and when a potential difference is given between the word line and the bit line, the word-line insulating film is broken in order to store data.
摘要:
This disclosure concerns a method of manufacturing a semiconductor device including preparing a support substrate including a surface region consisting of a semiconductor single crystal; forming a porous semiconductor layer by transforming the surface region of the support substrate into a porous layer; epitaxially growing a single-crystal semiconductor layer on the porous semiconductor layer; forming an opening reaching the porous semiconductor layer by removing a part of the single-crystal semiconductor layer; forming a cavity between the single-crystal semiconductor layer and the support substrate by removing the porous semiconductor layer through the opening; and filling the cavity with an insulating film or a conductive film.
摘要:
A spiral inductor comprising: a substrate; a protruding portion which is formed on the top face of the substrate and the top of which serves as a dummy element for controlling a chemical mechanical polishing process; and a conductive layer which is formed on the substrate so as to have a spiral shape and which serves as an induction element, wherein the protruding portion is formed in a region other than a region directly below the conductive layer.
摘要:
A semiconductor device comprises: a semiconductor substrate; an insulating layer provided on said semiconductor substrate; a first semiconductor layer provided on said insulating layer; a plurality of openings penetrating said first semiconductor layer and said insulating layer and reaching said semiconductor substrate; and second semiconductor layers filling said openings by selective growth and connected to said semiconductor substrate, wherein areal sizes of said plurality of openings are substantially equal to each other.
摘要:
A semiconductor device includes a first semiconductor layer of a first conductivity type having first and second main surfaces, a second semiconductor layer of a second conductivity type selectively formed on the first main surface of the first semiconductor layer, the second semiconductor layer including a first region having a relatively high injection efficiency and a second region having a relatively low injection efficiency and the first region being surrounded by the second region, a third semiconductor layer of the first conductivity type formed on the second main surface of the first semiconductor layer, a first electrode selectively formed on the second semiconductor layer of the second conductivity type and connected to at least the first region, and a second electrode formed on the third semiconductor layer of the first conductivity type.
摘要:
A semiconductor memory device includes bodies electrically floating; sources; drains; gate electrodes, each of which is adjacent to one side surface of the one of the bodies via a gate dielectric film; plates, each of which is adjacent to the other side surface of the one of the bodies via a plate dielectric film; first bit lines on the drains, the first bit lines including a semiconductor with a same conductivity type as that of the drains; and emitters on the semiconductor of the first bit lines, the emitters including a semiconductor with an opposite conductivity type to that of the semiconductor of the first bit lines, wherein the emitters are stacked above the bodies and the drains.