摘要:
A sensor array includes a substrate including a front side and a back side, a plurality of transducers fabricated on the front side of the substrate, a plurality of input/output connections positioned on the back side of the substrate, the input/output connections electrically coupled to the transducers, at least one electronic device, and an interposer positioned between the substrate and the electronic device, the interposer including a multilayer interconnect system configured to electrically connect the input/output connections to the electronic device.
摘要:
An interposer, interposer package and device assembly employing the same are provided. The interposer has a substrate formed of a semiconductor material, with first input/output contacts disposed over a first main surface thereof and second input/output contacts disposed over a second main surface thereof. The second input/output contacts are electrically connected to the first input/output contacts. The first input/output contacts disposed over the first main surface of the interposer substrate are for attachment to input/output pads of a device to which the interposer is to be attached. The second input/output contacts disposed over the second main surface of the interposer substrate facilitate electrical coupling to a component to which the interposer is also to be attached.
摘要:
Selective electrolytic deposition on either conductive or non-conductive bodies is provided by forming a layer of a metal which forms a plating-preventing compound on the surface of the body to be plated, and selectively interdiffusing a plating-enabling metal into the surface of that compound-forming metal in those locations where plating is desired and electroplating the body. The interdiffusion may be done before or after the plating-preventing compound has formed on the surface of the compound-forming layer. During the electroplating, the electroplating metal deposits only in those locations where the plating-enabling metal has interdiffused with the compound-forming metal. At the end of the process, the compound-forming metal may be removed in those locations where it is not covered by the electroplated metal to provide a plurality of separate plated conductors.
摘要:
A method for the preparation a photo-mask used for photo-imaging selected areas on the surfaces of a three-dimensional printed circuit board substrate. The photo-mask comprises an opaque layer, opaque and degradation resistant to UV light, having at least one side with a contoured shape conforming to the surface irregularities on the surfaces of the three-dimensional substrate being photo-imaged. A membrane transparent and degradation resistant to UV light, having at least one side cemented to the side of the opaque layer not in contact with the surfaces of the three-dimensional substrate being photo-imaged. A pattern of grooves positioned on the opaque layer allow transmission of UV light during the photo-imaging of the surfaces of the three-dimensiional substrate. The pattern of grooves is in accordance with a conductive metal trace pattern desired on the surfaces of the three-dimensional printed circuit board substrate. The photo-mask is prepared by first forming an opaque material layer on the surfaces of the three-dimensional substrate, followed by a membrane material to form the membrane. The pattern of grooves is created by ablating the opaque layer in selected areas by means of a laser beam from a laser moved in a boustrophedonous manner.
摘要:
A device containing a fluid material is sealed by sealant material placed essentially completely around the periphery of the device to join spaced apart first and second members of the device; and aperture is formed through the seal and the device interior is evacuated. Then fluid material is introduced into the device interior through the aperture and only a limited region of the device, confined substantially to the aperture is exposed to electromagnetic radiation from a laser or the like, to hermetically close the aperture when a photoreactive adhesive is injected into the aperture to cause the adhesive to solidify when contacted by the electromagnetic radiation. In an alternate embodiment, the aperture is filled with a plug of thermoplastic material, which is then selectively heat treated by a laser or the like to cause the plug to bind to the aperture boundary and hermetically enclose the fluid material.
摘要:
A storage cell includes a first bit line, a storage circuit, and a pass transistor. The storage circuit has a first storage node for holding a logic state indicative of a logic value. The pass transistor is coupled to the first bit line and the first storage node for establishing a conduction path therebetween. The pass transistor receives a bias voltage to switch the pass transistor into a substantially nonconducting state when the storage cell is not being accessed. The reverse bias on the first transistor substantially reduces the leakage current through the pass transistor.
摘要:
Chip adhesives with improved working time comprise a polyetherimide prepared from 2,2-bis[4-(3,4-dicarboxyphenoxy)phenyl]propane dianhydride and bis(4-aminophenyl) sulfone; at least one of silica and conductive metal particles, especially silver particles; and at least one substituted acetophenone as solvent. The preferred substituted acetophenone is 4-methylacetophenone.
摘要:
The present invention is a software product that provides merchants that sell time-slot inventories tools to capitalize on the Internet revolution. The present invention enables the creation of web-sites for merchants with a built-in web-based reservation booking system. This offers customers the on-line benefits of access, selection and immediacy in making real-time reservation/appointments over the Internet. The software product also simplifies the merchant's booking process by providing a central web-based reservation/appointment management system that can be used for all bookings, regardless if made by telephone, by a walk-in customer, or by a customer via the Internet. The software product also provides the merchant with a powerful direct marketing tool. As a merchant uses the software product, user-customer profiles and demographics are captured in the database module, thus creating (in Web jargon) a “community” of customers specific to the merchant. The merchant is thus empowered, using the mail module, to directly communicate with its customer base, using customer profiles and demographics to create a highly targeted and effective marketing and promotional ad campaign. The software product also allows the merchant to auction off time-slot inventory over the Internet. Lastly, the software product enables the creation of Web “super-communities” consisting of the aggregate of all the individual merchant's customer-communities using the software product.
摘要:
A method for the preparation a photo-mask used for photo-imaging selected areas on the surfaces of a three-dimensional printed circuit board substrate. The photo-mask comprises a membrane transparent and degradation resistant to UV light, having at least one side with a contoured shape conforming, and flexible enough to comply with surface irregularities on the surfaces of the three-dimensional substrate being photo-imaged. A pattern of tracks opaque to UV light is posiitoned along the contoured shape of the membrane. The pattern of tracks on the photo-mask is in accordance with a desired conductive metal trace pattern on the surfaces of the three-dimensional printed circuit board substrate. The photo-mask is prepared by photo-imaging and then depositing a track material on a film that conformed to the surfaces of the three-dimensional substrate. An adhesive layer applied over the film cements a membrane material poured upon the adhesive layer. Once the membrane material sets into the membrane it is sepaarated from the substrate to form the photo-mask of the present invention.
摘要:
Selective electrolytic deposition on either conductive or non-conductive bodies is provided by forming a layer of a metal which forms a plating-preventing compound on the surface of the body to be plated, and selectively interdiffusing a plating-enabling metal into the surface of that compound-forming metal in those locations where plating is desired and electroplating the body. The interdiffusion may be done before or after the plating-preventing compound has formed on the surface of the compound-forming layer. During the electroplating, the electroplating metal deposits only in those locations where the plating-enabling metal has interdiffused with the compound-forming metal. At the end of the process, the compound-forming metal may be removed in those locations where it is not covered by the electroplated metal to provide a plurality of separate plated conductors.