摘要:
A resist material and a nanofabrication method provide high-resolution nanofabrication without an expensive irradiation apparatus using, for example, electron beams or ion beams. That is, the resist material and the nanofabrication method provide finer processing using exposure apparatuses currently in use. A resist layer of an incompletely oxidized transition metal such as W and Mo is selectively exposed and developed to be patterned in a predetermined form. The incompletely oxidized transition metal herein is a compound having an oxygen content slightly deviated to a lower content from the stoichiometric oxygen content corresponding to a possible valence of the transition metal. In other words, the compound has an oxygen content lower than the stoichiometric oxygen content corresponding to a possible valence of the transition metal.
摘要:
A memory element 10 includes a memory layer 4 positioned between a first electrode 2 and a second electrode 6, in which an element selected from Cu, Ag, and Zn is contained in the memory layer 4 or in a layer 3 in contact with the memory layer 4, a resistance of the memory element 10 is changed by a voltage applied to the memory element 10 to perform recording of information, and in an erasing process of changing from a recorded state of low resistance value of the memory element 10 to an erased state of high resistance value of the memory element 10, a fluctuation, which is caused by an increase of the voltage applied to the memory element 10, of the resistance value of the memory element 10 at the end of the erasing process is within ten times at a maximum.
摘要:
It is intended to provide a storage element having an arrangement which becomes able to be manufactured easily with high density.A storage element includes resistance changing elements 10 having recording layers 2, 3 provided between two electrodes 1, 4 and in which resistance values of the recording layers 2, 3 are reversibly changed with application of electric potential with different polarities to these two electrodes 1, 4, at least part of the layers 2, 3 constructing the recording layers of the resistance changing elements 10 being formed commonly by the same layer in a plurality of adjacent memory cells.
摘要:
The present invention is to provide a memory device including: a plurality of memory cells that each include a memory element having a memory layer and first and second electrodes that sandwich the memory layer, the plurality of memory cells being divided into memory blocks of m columns by n rows (m and n are each an integer of not less than 1, m+n≧3), the memory elements in the same memory block having the first electrode that is formed of a single layer in common to the memory elements; and a voltage application unit that applies any voltage to the first electrode of the memory block.
摘要:
An alloy material, a thin film and an optical recording medium to achieve various tasks such as maintenance of a high reflectivity, improved corrosion resistance, simplified production of the alloy, and realization of stability and simplicity/easiness of a sputtering process when being used as a sputtering target. An AgPd alloy including Ag as a main component and Pd in the range of 0.5 to 4.9 atomic % is used as a thin film formation use sputtering target material, with the target material a thin film, that is a reflecting film, constituting an optical recording medium is formed and the optical recording medium containing the reflecting film as a constituent is produced.
摘要:
A storage device includes a storage element having first and second terminals that cause a first electrical characteristic change when an electric signal of a first threshold level or higher is applied and that cause a second electrical characteristic change, which is asymmetrical to the first electrical characteristic change, when an electric signal of a second threshold level or higher, the polarity of the electric signal of the second threshold level or higher being different from the polarity of the electric signal of the first threshold level or higher, is applied; and a unipolar transistor connected in series with the storage element. One of the first terminal and the second terminal of the storage element is electrically connected to the unipolar transistor. The unipolar transistor has a negative polarity or a positive polarity in accordance with the first terminal or the second terminal electrically connected to the unipolar transistor.
摘要:
A memory element in which data recording and data readout can be performed stably without difficulties and which can be manufactured with a comparatively simplified method is provided. The memory element 10 includes a memory layer 4 and an ion source layer 3 positioned between the first electrode 2 and the second electrode 6, in which the ion source layer 3 contains any of elements selected from Cu, Ag, Zn and any of elements selected from Te, S, Se, and the ion source layer further contains boron (or rare-earth elements and silicon).
摘要:
Data reading can be easily and precisely performed by setting specific conditions in writing into a selected memory cell. A memory cell has a structure, in which an interelectrode material layer is sandwiched between a first electrode and a second electrode. Data is stored by a change in a resistance value between the first electrode and the second electrode. The resistance value when a memory element is in a high resistance state is expressed as R_mem_high; the resistance value when the memory element is in a low resistance state is expressed as R_mem_low1; the resistance value of a load circuit is expressed as R_load; the reading voltage is expressed as Vread by setting the voltage of a second power supply line to the reference voltage; and the threshold voltage is expressed as Vth_critical. In writing data into the memory cell, the low resistance state is created so that these parameters satisfy specific relations. The load circuit is formed by an element having the same structure as of the memory element of the memory cell.
摘要:
A memory element which stably performs operations such as data recording and which has a stable structure with respect to heat is provided. A memory element 10 includes a memory layer 4 and an ion source layer 3 positioned between the first electrode 2 and second electrode 6, in which the ion source layer 3 contains any of elements selected from Cu, Ag and Zn, and any of elements selected from Te, S and Se, and the memory layer 4 is made of any of tantalum oxide, niobium oxide, aluminum oxide, hafnium oxide and zirconium oxide, or is made of mixed materials thereof.
摘要:
A memory element having a configuration in which contents of recorded data can be judged easily and power consumption can be reduced, and a method of driving the same are provided. A memory element 10 of the present invention includes variable resistance elements 11 and 12 whose resistance state changes reversibly between a high resistance state and a low resistance state by applying a voltage of a different polarity between an electrode 1 of one side and an electrode 2 of the other side; the electrode 1 of one side in each element of the two variable resistance elements 11 and 12 is made a common electrode; and the electrode 2 of the other side in each element of the two variable resistance elements 11 and 12 is made independent and is provided respectively with the terminal X and terminal Y, to form a memory cell having two terminals in total.