摘要:
Nonvolatile semiconductor memory device of an embodiment includes: a memory cell array including a plurality of first and second lines intersecting each other and plural memory cells provided at intersections of the first and second lines and having data written and erased upon application of voltages of the same polarity; and a writing circuit configured to select first and second lines and supply a set or reset pulse to the memory cell through the selected first and second lines. In an erase operation, the writing circuit repeatedly supplies the reset pulse to a selected memory cell until data is erased, by increasing or decreasing voltage level and voltage application time of the reset pulse within a reset region. The reset region, or an aggregate of combinations of voltage level and voltage application time of the reset pulse, is a region where voltage level and voltage application time are negatively correlated.
摘要:
To discriminate a disk in a short time, a calculating part 16 measures an amplitude of one of a focus error signal and a tracking error signal, which are output from a differential signal generating part 15, several times, and outputs the measured amplitudes to a controller 20. The controller 20 compares the input amplitudes with threshold values stored in a memory 21, respectively, and determines whether or not an amplification gain of one of the focus error signal and the tracking error signal is changed. If it is determined that the amplification gain of one of the focus error signal and the tracking error signal is changed, the controller 20 changes the amplification gain of one of the focus error signal and the tracking error signal to an amplification gain represented by one of the threshold values and discriminates the kind of an optical disk based on the changed amplification gain.
摘要:
A semiconductor device manufacturing method has forming a first resist pattern on the semiconductor substrate, and then, forming a first pattern on the semiconductor substrate by the use of the first resist pattern, and forming a second resist pattern on the semiconductor substrate by using an imprinter, and then, forming a second pattern on the semiconductor substrate by the use of the second resist pattern. The forming the first pattern, the first pattern smaller than a design pattern corresponding to the design data for forming a plurality of patterns on a semiconductor substrate being formed.
摘要:
A method of manufacturing nonvolatile semiconductor memory devices comprises forming a first wiring material; and stacking memory cell materials on the first wiring material, which configure memory cells each including a variable resistor operative to nonvolatilely store information in accordance with variation in resistance. The method also comprises forming a plurality of first parallel trenches in the first wiring material and the stacked memory cell materials, the first trenches extending in a first direction, thereby forming first lines extending in the first direction and memory cell materials self-aligned with the first lines and separated by the first trenches. The method further comprises burying an interlayer insulator in the first trenches to form a block body and stacking a second wiring material on the block body. The method also comprises forming a plurality of second parallel trenches in the block body with the second wiring material stacked thereon, the second trenches extending in a second direction crossing the first direction and having a depth reaching the upper surface of the first wiring material, thereby forming second lines extending in the second direction and memory cells self-aligned with the second lines and separated by the first and second trenches.
摘要:
An electromagnetic shock absorber including: (a) a wheel-side member; (b) a body-side member movable relative to the wheel-side member; and (c) a damping force generator with an electromagnetic motor including stationary and movable elements movable relative to each other. The damping force generator can generate, based on a force generated by the motor, a damping force acting against a relative movement of the wheel-side member and the body-side member. The motor has an axis extending in a both-members-relative-movement direction as a direction of the above-described relative movement. The stationary element is supported by the wheel-side member via an elastic body, to be movable relative to the wheel-side member in the both-members-relative-movement direction. The electromagnetic motor allows relative movement of the stationary element and the movable element upon movement of the stationary element relative to the wheel-side member.
摘要:
The invention relates to a thermosetting resin composition comprising (A) 20 to 90 mass % of thermosetting resin, (B) 10 to 80 mass % of inorganic and/or organic fine particles and (C) 0.1 to 5 mass % of fluorine-containing polyether, wherein (C) is polymer having fluorinated alkyl polyoxetane structure of formula (1) or (2), (m is an integer of 1 to 100, n is an integer of 1 to 6, R1 represents a hydrogen atom or an alkyl group having 1 to 6 carbon atoms, R2 and R3 each represent a straight or branched chain alkyl group having 1 to 20 carbon atoms, with a proviso that at least 50% of hydrogen atoms present in the alkyl group is substituted by fluorine and the other hydrogen atoms are substituted by hydrogen, iodine, chlorine or bromine atoms) or a composition containing copolymer which consists of monomer having fluorinated alkyl polyoxetane structure and oxygen-containing monomer having 2 to 6 carbon atoms.
摘要:
In an electromagnetic suspension device comprising one member (1), the other member (2) adapted to perform a relative motion with respect to the one member (1), and a motor (M) capable of at least suppressing the relative motion, and wherein electric current values id and iq of d and q phases are determined using dq conversion from electric currents iv and iu flowing in the motor (M) and an electrical angle θ of a rotor, and the motor (M) is controlled on the basis of both d-phase voltage command value Vd1 and q-phase voltage command value Vq1, the improvement characterized by further comprising correction means (23) for correcting the d-phase voltage command value Vd1 on the basis of both q-phase electric current iq and electrical angular velocity ω of the rotor and correcting the q-phase voltage command value Vq1 on the basis of both d-phase electric current id and electrical angular velocity ω of the rotor.
摘要:
A trench capacitor is formed in a semiconductor substrate with a capacitor insulating film. The trench has a conductive layer as storage node electrode buried in a trench. The conductive layer includes a first, a second, and third conductive layer. The first conductive layer is buried in a lower portion of the trench. The second conductive layer is buried in a recess on the upper surface of the first conductive layer. The third conductive layer is buried to contact with the first and second conductive layers.
摘要:
A semiconductor device includes an amorphous silicon film having a principal plane and an insulating film formed by supplying radical oxygen onto the principal plane of the amorphous silicon film.
摘要:
A semiconductor device includes a first insulating film having a plurality of wiring trenches formed at predetermined intervals in an upper part, the first insulating film having an upper surface, a second insulating film formed on the upper surface of the first insulating film so as to be located between the wiring trenches, the second insulating film having an upper surface, a wiring layer buried in the wiring trenches and formed so that an upper surface thereof is located lower than an upper surface of the second insulating film, and a via plug formed so as to be connected to the upper surface of the wiring layer.