摘要:
An integrated circuit controller for controlling the operation of a voltage converter which includes a first comparator for comparing a voltage associated with an input of a boost converter with a threshold voltage and generating a control signal in response thereto. A second comparator compares a second voltage associated with an output of the boost converter with the threshold voltage and generates a second control signal in response thereto. Driver circuitry generates a first switching transistor drive signal and a second switching transistor drive signal. The first switching transistor drive signal is used for driving an upper gate switching transistor of a buck converter. The second switching transistor drive signal may be configured in a first mode of operation to drive a lower gate switching transistor of the buck converter and may be configured in a second mode of operation to drive a switching transistor of the boost converter. Control logic enables/disables at least a portion of the driver circuitry responsive to the control signal and the second control signal.
摘要:
Memory devices and methods described are shown that provide improvements, including improved cell isolation for operations such as read and write. Further, methods and devices for addressing and accessing cells are shown that provide a simple and efficient way to manage devices with multiple cells associated with each access transistor. Examples of multiple cell devices include phase change memory devices with multiple cells associated with each access transistor.
摘要:
The invention relates to a novel canola line designated as SCV453784. The invention also relates to the seeds, the plants, and the plant parts of canola line SCV453784 as well as to methods for producing a canola plant produced by crossing canola line SCV453784 with itself or with another canola line. The invention also relates to methods for producing a canola plant containing in its genetic material one or more transgenes and to the transgenic canola plants and plant parts produced by those methods. The invention further relates to canola lines or breeding lines and plant parts derived from canola line SCV453784, to methods for producing other canola lines or plant parts derived from canola line SCV453784 and to the canola plants, varieties, and their parts derived from use of those methods. The invention additionally relates to hybrid canola seeds, plants, and plant parts produced by crossing the line SCV453784 with another canola line.
摘要:
Memory devices and methods described are shown that provide improvements, including improved cell isolation for operations such as read and write. Further, methods and devices for addressing and accessing cells are shown that provide a simple and efficient way to manage devices with multiple cells associated with each access transistor. Examples of multiple cell devices include phase change memory devices with multiple cells associated with each access transistor.
摘要:
A variable-resistance material memory array includes a series of variable-resistance material memory cells. The series of variable-resistance material memory cells can be arranged in parallel with a corresponding series of control gates. A select gate can also be disposed in series with the variable-resistance material memory cells. Writing/reading/erasing to a given variable-resistance material memory cell can include turning off the corresponding control gate, while turning on all other control gates. Various devices can include such a variable-resistance material memory array.
摘要:
In some embodiments, a memory cell includes a transistor gate spaced from a channel region by gate dielectric; a source region on one side of the channel region; and a drain region on an opposing side of the channel region from the source region. The channel region has phase change material adjacent the drain region. In some embodiments, the phase change material may be adjacent both the source region and the drain region. Some embodiments include methods of programming a memory cell that has phase change material adjacent a drain region. An inversion layer is formed within the channel region adjacent the gate dielectric, with the inversion layer having a pinch-off region within the phase change material adjacent the drain region. Hot carriers (for instance, electrons) within the pinch-off region are utilized to change a phase within the phase change material.
摘要:
Memory cells of a memory device including a variable resistance material have a cavity between the memory cells. Electronic systems include such memory devices. Methods of forming a memory device include providing a cavity between memory cells of the memory device.
摘要:
A phase change memory structure with multiple resistance states and methods of forming, programming, and sensing the same. The memory structure includes two or more phrase change elements provided between electrodes. Each phase change element has a respective resistance curve as a function of programming voltage which is shifted relative to the resistance curves of other phase change elements. In one example structure using two phase change elements, the memory structure is capable of switching among four resistance states.
摘要:
The present disclosure includes resistive memory devices and systems having resistive memory cells, as well as methods for operating the resistive memory cells. One memory device embodiment includes at least one resistive memory element, a programming circuit, and a sensing circuit. For example, the programming circuit can include a switch configured to select one of N programming currents for programming the at least one resistive memory element, where each of the N programming currents has a unique combination of current direction and magnitude, with N corresponding to the number of resistance states of the at least one memory element. In one or more embodiments, the sensing circuit can be arranged for sensing of the N resistance states.
摘要:
Spin current generators and systems and methods for employing spin current generators. A spin current generator may be configured to generate a spin current polarized in one direction, or a spin current selectively polarized in two directions. The spin current generator may by employed in spintronics applications, wherein a spin current is desired.