摘要:
A method for programming a memory array of a non-volatile memory structure, wherein the memory array comprises a population of MLC NAND-type memory cells, and the method comprises: (1) in a first program pulse, programming selected memory cells according to a first programmable state and a second programmable state, and (2) in a second program pulse, programming the selected memory cells according to a third programmable state.
摘要:
Methods, systems, and apparatus for simulating a physical system. A Hamiltonian describing the physical system is transformed into a qubit Hamiltonian describing a corresponding system of qubits, the qubit Hamiltonian comprising a transformed kinetic energy operator. The evolution of the system of qubits under the qubit Hamiltonian is simulated, including simulating the evolution of the system of qubits under the transformed kinetic energy operator by applying a fermionic swap network to the system of qubits. The simulated evolution of the system of qubits under the qubit Hamiltonian is used to determine properties of the physical system.
摘要:
An apparatus includes a first channel, a second channel and a calibration circuit. The first channel includes a first command control circuit. The second channel includes a second command control circuit independent of the first command control circuit. The calibration circuit is shared by the first channel and the second channel to generate a calibration code responsive to a calibration command generated responsive to a first calibration command from the first command control circuit and a second calibration command from the second command control circuit.
摘要:
Read disturb due to hot electron injection is reduced in a 3D memory device by controlling the magnitude and timing of word line and select gate ramp down voltages at the end of a sensing operation. In an example read operation, a predefined subset of word lines includes source-side and drain-side word lines. For the predefined subset of word lines, word line voltages are ramped down before the voltages of the select gates are ramped down. Subsequently, for a remaining subset of word lines, word line voltages are ramped down, but no later than the ramping down of the voltages of the select gates. The timing of the ramp down of the selected word line depends on whether it is among the predefined subset or the remaining subset. The predefined subset can include a number of adjacent or non-adjacent word lines.
摘要:
The present invention relates to an erasing method for nonvolatile memory, which uses forward bias between the source/drain region and body contact to inject majority carriers into the body, and then accelerates the majority carriers by an electric field between the body and the gate to energize the majority carriers to overcome the oxide barrier and to erase the nonvolatile memory.
摘要:
A page buffer for a non-volatile semiconductor memory device includes a switch configured to couple a first bitline coupled to a first memory cell to a second bitline coupled to a second memory cell, a first latch block coupled to the first bitline and configured to transfer a first latch data to the first memory cell, and a second latch block coupled to the second bitline and the first latch block, and configured to transfer a second latch data to the second memory cell.
摘要:
A read head for a Wiegand Wire has a low reluctance core on which a pick-up coil is wound. The Wiegand Wires are passed over a face of the core and coil and switch state directly over the core and coil so that the change in the magnetic field is coupled to the coil to produce an output pulse. Outboard of the direction in which the Wiegand Wires travels are first and second magnets that generate the field. In contact with these magnets and bridging both sides of the coil are first and second magnetic shunt members which control and determine the shape of the field. A first magnetic shunt member has a relatively narrow bridge portion which saturates under the field involved and thus there is a large leakage field adjacent to the face of the read head for the purpose of appropriately setting the Wiegand Wires. The second shunt has a much larger bridge portion so that there is much less leakage flux. However this smaller leakage flux is in the opposite direction from the leakage flux from the first shunt. The leakage flux from the second shunt serves to establish, accordingly, a negative field having a magnitude sufficient to reset the Wiegand Wire. In this fashion the two magnets and two shunts determine the strength and configuration of the field.
摘要:
An associative processor is provided which is a digital computer system capable of operating upon many independent sets of data at once or simultaneously. Each data set is processed sequentially, bit by bit giving an overall effect that is analogous to a large bank of serial computers all executing the same program, but on different data. Each memory word corresponds to one such serial processor. Since the available number of memory words greatly exceeds the number of data bits typically processed in parallel by a conventional sequential computer, the associative processor has a considerable speed advantage. Each word in memory has a common response store and arithmetic unit to accomplish logical operations in a parallel by word serial by bit interrogation. In essence, the processor combines an associative memory with control of the associative memory provided through essentially parallel input-output busses, and with the associative memory array incorporating arithmetic and logic circuits. These logic circuits permit parallel by word, serial by bit readout, thus incorporating an input/output capability that exceeds all prior computer techniques.
摘要:
A memory plane includes a keepered word line structure formed by two cooperating molded assemblies, both having recesses for accommodating loose particles of magnetically conductive, but electrically non-conductive material. A contoured word strap assembly is partially disposed in each of said molded assemblies, after which the molded assemblies are joined together whereby the peaks of the contoured word strap assemblies define tunnels in which magnetically coated wires may be inserted, thereby completing the construction of the keepered memory plane.
摘要:
A magnetic wire memory construction and method of making in which the memory comprises a plurality of stacked memory planes having memory wires inserted in aligned holes thereof. Each memory plane is fabricated using precision batch fabricated selective chemical etching techniques on a single self-supporting metal sheet so as to form pairs of insulated drive lines within the sheet looping around respective rows of a row-column matrix of memory wire receiving holes. Additional metal and magnetic layers may be provided over the surfaces of the sheets for increasing shielding and reducing memory cell disturbances.