摘要:
A method of forming a high density semiconductor structure including one or more buried metal layers. One or more metal layers may be formed on a first semiconductor substrate, with the metal layer or layers being insulated from one another and from the substrate. One or more metal layers may be formed on the surface of a second substrate which may or may not be a semiconductor substrate. The topmost metal layers, either or both of which may have an insulating layer thereon, are placed in contact and heated in an oxidizing ambient atmosphere to form a bond therebetween. One or more vias connect the buried metal layers to the active devices in the substrates. The buried metal layers may form buried power and ground planes and buried metallization patterns for device interconnection.
摘要:
A thermally activated method of depositing a metal on a localized microscopic portion of a substrate, that can be carried out at relatively low process temperatures, and that is particularly useful for depositing metals in an amount and purity sufficient for electrical conductivity on substrates containing microelectronic circuits and devices or their respective precursors. The method comprises heating a substrate in the presence of a vaporized metal-organic composition to a first temperature that is just below the temperature at which the vaporized metal-organic composition will dissociate into a metal and an organic-containing portion, and then raising the temperature of a localized portion of the heated substrate from the first temperature to a second, higher temperature at which the vaporized metal-organic composition will dissociate into a metal and an organic-containing portion but below the temperature at which the organic-containing portion will decompose to produce and deposit organic decomposition products upon the localized portion, and until an amount of the dissociated metal sufficient for electrical conductivity deposits upon the localized portion.
摘要:
A socket for grippingly engaging the polygonal portion of a threaded fastener having deteriorated head surfaces and for transferring a moment from a tool to the fastener to turn the fastener. The socket includes a socket body, a receptacle for mating with a drive end of tool, a polygonal receptacle for receiving the polygonal portion of a fastener, and at least one set screw mounted in the socket body for urging a fastener received within the polygonal receptacle against a wall segment of the polygonal receptacle. A wrench for turning the socket is also disclosed.
摘要:
An alternating cyclic (A.C.) method for selectively depositing materials, on the surface of a substrate without depositing the material on an adjacent mask layer. A gas of a reducible compound of the material and a reducing gas, preferably hydrogen, are simultaneously flowed through a reaction chamber to deposit the material on the substrate surface and to a lesser extent on the mask layer. Then, the flow of reducing gas is interrupted to cause the reducible compound gas to etch the material which forms on the mask layer in a disproportionation reaction. The deposition and etch steps are repeated in an alternating cyclic fashion until the requisite thickness is deposited. The process may take place in a single reaction chamber, using only the reducible compound gas and pulsed flow of the reducing gas.
摘要:
Ceramic parts may be bonded by forming bonding layers of silicon dioxide, silicon, metal or metal oxide on the parts, placing the bonding layers adjacent one another and heating in an oxidizing ambient atmosphere to form an oxide bond therebetween. Pressure may be applied between the ceramic parts to aid in bonding. A reliable bonded ceramic structure is thereby provided.
摘要:
An alternating cyclic (A.C.) method for selectively depositing single element semiconductor materials, on the surface of a substrate without depositing the material on an adjacent mask layer. A gas of a reducible compound of the material and a reducing gas, preferably hydrogen, are simultaneously flowed through a reaction chamber to deposit the material on the substrate surface and to a lesser extent on the mask layer. Then, the flow of reducing gas is interrupted to cause the reducible compound gas to etch the material which forms on the mask layer in a disproportionation reaction. The deposition and etch steps are repeated in an alternating cyclic fashion until the requisite thickness is deposited. The process may take place in a single reaction chamber, using only the reducible compound gas and pulsed flow of the reducing gas.
摘要:
Three dimensional electronic and optical coupling devices that are capable of providing high speed coupling over a large frequency range while limiting the amount of space consumption in the communications network. An optical or electrical coupling device comprises a first substrate and a second substrate adjacent to the first substrate having one or more optical waveguides or microstrips formed thereon. The substrates will have disposed thereon conductive microstrips and/or dielectric elements. The one or more optical waveguides or microstrips formed on the first substrate correspond to at least one optical waveguides or microstrips formed on the second substrate so as to facilitate optical coupling between the corresponding waveguides. Precise spacing between the substrates and precise spacing between the optical waveguides or microstrips facilitate the requisite optical/RF coupling.
摘要:
This invention provides a continuous display with non-uniform pixel density, forming a foveated display. A single, continuous display has a higher pixel density at the center of the display than at the periphery of the display. Where two continuous displays are used in accordance with the present invention, the central forward gaze of the viewer's image will be displayed in high resolution while the leftmost portion of the left eye display will be in low resolution and the rightmost portion of the right eye display will be in low resolution. The pixel resolution of the visual display may correspond to the visual acuity of the human eye. A foveated image display system using a continuous display with non-uniform pixel density increases the field of view while reducing the image bandwidth. A foveated image display system may be hardware-based by employing anamorphic lenses or sensors rather than relying upon image interpolation to modify the resolution of the resultant image data communicated to the continuous display with non-uniform pixel density.
摘要:
The invention relates to a reconfigurable scalable intrusion-tolerant network that is interposed between a service requesting client and a protected server to minimize the impact of intrusive events. The apparatus may include a proxy server for receiving the requests from a client and forwarding them to a protected server. Acceptance monitors receive the response from a protected server and apply one or more acceptance tests. A ballot monitor receives the result of the acceptance tests and determines a response to the client. The network may also include an intrusion sensor to detect threats to the network and a reconfigurer to alter the network forwarding scheme. Reconfiguration may include isolating network elements, creating parallel paths, implementing redundant operations, or assessing the validity of responses.