摘要:
According to one embodiment, an information recording/reproducing device including a semiconductor substrate, a first interconnect layer on the semiconductor substrate, a first memory cell array layer on the first interconnect layer, and a second interconnect layer on the first memory cell array layer. The first memory cell array layer comprises an insulating layer having an alignment mark, and a stacked layer structure on the insulating layer and including a storage layer and an electrode layer. All of the layers in the stacked layer structure comprises a material with a permeability of visible light of 1% or more.
摘要:
According to one embodiment, an information recording and reproducing device includes a recording layer which includes a typical element and a transition element, and stores a state of a first electric resistivity and a state of a second electric resistivity different from the first electric resistivity by a movement of the typical element, and an electrode layer which is disposed at one end of the recording layer to apply a voltage or a current to the recording layer. The recording layer includes a first region which is in contact with the electrode layer and the electrode layer includes a second region which is in contact with the recording layer. The first and second regions are opposite to each other. And the first and second regions include the typical element, and a concentration of the typical element in the second region is higher than that in the first region.
摘要:
According to one embodiment, an information recording and reproducing device includes a recording layer and a driving unit. The recording layer includes a first layer containing a first compound. The first compound includes a first positive ion element. The first positive ion element is made of a transition metal element and serves as a first positive ion. The second positive ion element serves as a second positive ion. The driving unit is configured to generate a phase change in the recording layer and to record information by at least one of application of a voltage and application of a current to the recording layer. The coordination number of the first positive ion element at a position of a second coordination of the second positive ion element is 80% or more and less than 100% of the coordination number when the first compound is assumed to be a perfect crystal.
摘要:
According to one embodiment, an information recording/reproducing device includes a recording layer and a driver section. The recording layer has a first layer including a first compound. The first compound includes a mixed crystal of a first oxide containing a first metallic element and a second oxide. The second oxide has a crystal structure being same as the first oxide and contains a second metallic element different from the first metallic element. The driver section is configured to produce state change in the recording layer to record information by at least one of application of voltage to the recording layer and passage of current to the recording layer. Composition ratio of an element having a smaller ionic radius of the first and second metallic elements is not less than percolation threshold of a lattice formed of ions of the first and second metallic elements based on the crystal structure.
摘要:
According to one embodiment, an information recording and reproducing device includes a recording layer which includes a typical element and a transition element, and stores a state of a first electric resistivity and a state of a second electric resistivity different from the first electric resistivity by a movement of the typical element, and an electrode layer which is disposed at one end of the recording layer to apply a voltage or a current to the recording layer. The recording layer includes a first region which is in contact with the electrode layer and the electrode layer includes a second region which is in contact with the recording layer. The first and second regions are opposite to each other. And the first and second regions include the typical element, and a concentration of the typical element in the first region is higher than that in the second region.
摘要:
A phase-change optical recording medium includes a phase-change optical recording film that permits reversible phase change between a crystalline phase and an amorphous phase upon irradiation with light, and an interface film formed of hafnium oxide, or a mixture of hafnium oxide and at least one oxide selected from the group consisting of cerium oxide, titanium oxide and zirconium oxide, and formed in contact with at least one surface of the phase-change optical recording film.
摘要:
A device receives ASK signals by using an ASK signal receiving circuit that is different from an ASK signal receiving circuit for R/W mode, when an NFC-enabled semiconductor device operates in a mode other than the R/W mode. An ASK signal receiving circuit for 100% ASK is provided on the side of a pair of transmitting terminals. This arrangement eliminates the influence of an ESD provided within an ASK signal receiving circuit for 10% ASK coupled to a pair of receiving terminals. There is no need for management of threshold values that are different according to type of ASK and it is possible to support different modulation schemes by a smaller circuit configuration.
摘要:
A nonvolatile semiconductor memory device includes: a memory cell array including plural first lines, plural second lines, and plural memory cells each including a variable resistance element; a first decoder connected to at least one ends of the plurality of first lines and configured to select at least one of the first lines; at least one pair of second decoders connected to both ends of the plurality of second lines and configured such that one of the pair of second decoders is selected for selecting the second lines according to a distance between the one of the first lines selected by the first decoder and the both ends of the second lines; and a voltage application circuit configured to apply a certain voltage between the first line and the second line selected by the first decoder and the second decoder.
摘要:
According to one embodiment, a non-volatile memory device includes a stacked structure including a memory portion and an electrode having a surface facing the memory portion; and a voltage application portion to apply a voltage to the memory portion to change resistance. The surface includes first and second regions. The first region contains a first nonmetallic element and at least one element of a metallic element, Si, Ga, and As. The second region contains a second nonmetallic element and the at least one element. The second region has a content ratio of the second nonmetallic element higher than that in the first region. A difference in electronegativity between the second nonmetallic element and the at least one element is greater than that between the first nonmetallic element and the at least one element. At least one of the first and second regions has an anisotropic shape.
摘要:
An integrated circuit is equipped with a reception mixer and a signal generator. A multistage delay circuit generates a plurality of clock pulses in response to a reception carrier signal. A phase detection unit detects differences between a voltage level of a specific clock pulse and voltage levels of a predetermined number of clock pulses generated prior to the specific clock pulse to thereby detect a predetermined phase of the specific clock pulse. A selector of a clock generation unit outputs a plurality of selection clock pulse signals respectively having a plurality of phases from the clock pulse signals. A first signal synthetic logic circuit performs logical operations on the selection clock pulses to thereby generate local signals supplied to the reception mixer.