Abstract:
Methods, systems, circuits, and devices for power-packet-switching power converters using bidirectional bipolar transistors (BTRANs) for switching. Four-terminal three-layer BTRANs provide substantially identical operation in either direction with forward voltages of less than a diode drop. BTRANs are fully symmetric merged double-base bidirectional bipolar opposite-faced devices which operate under conditions of high non-equilibrium carrier concentration, and which can have surprising synergies when used as bidirectional switches for power-packet-switching power converters. BTRANs are driven into a state of high carrier concentration, making the on-state voltage drop very low.
Abstract:
Method of producing amorphous semiconductor hydrides (hydrogenated amorphous semiconductors) with specified bandgaps. The desired bandgap is achieved by controlling the temperature and partial pressure of higher order semiconductanes which are introduced into, for example, in a hotwall epitaxial reactor, to create a deposit on a substrate held in the reactor, said deposit being created by pyrolytic decomposition of said semiconductanes.
Abstract:
Semiconductor component (1) with charge compensation structure (3) and method for producing the same. For that purpose, the semiconductor component (1) has a semiconductor body (4) with a drift section (5) between two electrodes (6, 7). The drift section (5) comprises drift zones of a first conductivity type forming a current path between the electrodes (6, 7) in the drift section, while charge compensation zones (11) of a complementary conductivity type narrow the current path in the drift section (5). The drift section (5) comprises for that purpose two alternating, epitaxially grown diffusion zone types (9, 10), the first drift zone type (9) having a monocrystalline semiconductor material on a monocrystalline substrate (12), and a second drift zone type (10) having a monocrystalline semiconductor material in a trench structure (13), with walls (14, 15) which have a complementary doping and form the charge compensation zones (11).
Abstract:
There is provided a monolithic three dimensional array of charge storage devices which includes a plurality of device levels, wherein at least one surface between two successive device levels is planarized by chemical mechanical polishing.
Abstract:
The present invention generally relates to nanotechnology and sub- microelectronic devices that can be used in circuitry and, in particular, to nanoscale wires and other nanostructures able to encode data. One aspect of the present invention is directed to a device comprising an electrical crossbar array comprising at least two crossed wires at a cross point. In some cases, at least one of the crossed wires is a nanoscale wire, and in certain instances, at least one of the crossed wires is a nanoscale wire comprising a core and at least one shell surrounding the core. For instance, the core may comprise a crystal (e.g., crystalline silicon) and the shell may be at least partially amorphous (e.g., amorphous silicon). In certain embodiments, the cross point may exhibit intrinsic current rectification, or other electrical behaviors, and the cross point can be used as a memory device. For example, in one embodiment, the cross point may exhibit a first conductance at a positive voltage, and the cross point may exhibit a second conductance at a negative voltage. Accordingly, by applying suitable voltages to the cross point, data may be stored at the cross point. Other aspects of the present invention are directed to systems and methods for making or using such devices, kits involving such devices, or the like.
Abstract:
The present invention generally relates to nanotechnology and sub- microelectronic devices that can be used in circuitry and, in particular, to nanoscale wires and other nanostructures able to encode data. One aspect of the present invention is directed to a device comprising an electrical crossbar array comprising at least two crossed wires at a cross point. In some cases, at least one of the crossed wires is a nanoscale wire, and in certain instances, at least one of the crossed wires is a nanoscale wire comprising a core and at least one shell surrounding the core. For instance, the core may comprise a crystal (e.g., crystalline silicon) and the shell may be at least partially amorphous (e.g., amorphous silicon). In certain embodiments, the cross point may exhibit intrinsic current rectification, or other electrical behaviors, and the cross point can be used as a memory device. For example, in one embodiment, the cross point may exhibit a first conductance at a positive voltage, and the cross point may exhibit a second conductance at a negative voltage. Accordingly, by applying suitable voltages to the cross point, data may be stored at the cross point. Other aspects of the present invention are directed to systems and methods for making or using such devices, kits involving such devices, or the like.
Abstract:
An amorphous material such as silicon is doped with a dopant, such as boron, in small amounts effective to reduce light-induced degradation. The dopant preferably is added in the vapor deposition of the amorphous material and results in a concentration of less than about 5x10 atoms/cm in a film. The films may be used in applications such as photovoltaic devices, xerography drums, facsimile elements, thin film transistors, and particle detectors.
Abstract translation:诸如硅之类的无定形材料以少量掺杂有掺杂剂,例如硼,以有效降低光致降解。 掺杂剂优选在无定形材料的气相沉积中加入,并导致膜中小于约5×10 18原子/ cm 3的浓度。 这些膜可以用于诸如光伏器件,静电鼓,传真元件,薄膜晶体管和粒子检测器的应用中。