摘要:
Substrate (7; 7'; 10) and devices including such a substrate, the substrate having a first surface and a second surface extending substantially in parallel to the first surface, the substrate being of a material of a first conductivity and provided with a plurality of electrically conducting channels (21) which are extending exclusively in a direction perpendicular to the first and second surfaces, said channels having a second conductivity substantially larger than the first conductivity, the substrate being provided with at least one electrode (42) on either one of the first and second surfaces, contacting at least one of said channels, the at least one electrode (42) having a predetermined minimum dimension (D) in a contact area (A) with the substrate, and mutual distances between adjacent ones of the plurality of channels (21) being smaller than said minimum dimension of said at least one electrode (42).
摘要:
The invention relates to a method of making a multi-layer circuit assembly. Said method comprises the steps of providing a first circuit panel (544) having a dielectric body with oppositely directed top and bottom surfaces, contacts (538) on its top surface at locations of a first pattern, terminals (530) on its bottom surface, and through-conductors (527) electrically connected to said terminals and extending to the top surface of the panel, and a second circuit panel (562) having a dielectric body with a bottom surface and terminals (530) at locations of said first pattern on the bottom surface of such panel, said providing step including the step of customizing said first circuit panel by selectively treating the top surface of such panel so that less than all of the through conductors of such panel are connected to contacts of such panel; stacking said circuit panels in superposed, top-surface to bottom surface relation so that the top surface of said first circuit panel faces the bottom surface of said second circuit panel at a first interface and said first patterns on said facing surfaces are in registration with one another, with said contacts of said first panel being aligned with said terminals of said second panel at least some locations of said inregistration patterns; and non-selectively connecting all of said aligned contacts and terminals at said interface, whereby less than all of said through conductors of said customized panel are connected to terminals of said adjacent panel. The invention also relates to a multi-layer circuit assembly.
摘要:
5 n7 A carrier on which electronic components (14) and electrical circuits (18, 20) are mounted and connected. The carrier comprises a wire mesh or web (8) which is used as a basic material for a number of applications. For organically or inorganically wires, electrically conductive material or super conducting fibers may be used. The wires may be fabricated as a web or an X/Y layer. The chip can be directly mounted on a mesh of insulated conductive wires. This eliminates one complete packaging level (module) and replaces the complex printed circuit card/board by a simple wire mesh. Personalized X/Y wiring for signals and voltage is accomplished by interconnecting the wire crossings (22) as required and by deleting stubs. Depending upon the diameter of the wires used, more than one wire may be required for providing sufficient power to the chip. The mesh may be assembled on a stiffener with tabs to interconnect with other components or be used directly as a cable. Chip-to-wire interconnection are obtained by removing the insulation and by soldering the chip to the wire. The web may also be fixed to a board or by an appropriate frame. Further disclosed is a method for manufacturing the new carrier and a system comprising the carrier. In addition to affording high-quality components, alternative manufacturing techniques allow using the advantages of CIM (Computer Integrated Manufacturing), CFM (Continuous Flow Manufacturing), TAT (Tape Auto Testing), lot size = 1, and ECs (engineering changes)/repairs. CFM and TAT concepts are realized by reducing the manufacturing steps to about one third the number presently needed. In addition, most steps are not as complicated and expensive as the classical ones used to produce printed circuit boards.
摘要:
A printed circuit board which is of such a construction that patterns of electrically conductive strips and/or pads of either standard or non-standard form can be readily provided comprises a rigid board 1 of which at least the major surfaces are of electrically insulating material, which has extending through the board a multiplicity of holes 2 arranged in a pattern of rows and columns and which carries on one or each of its major surfaces a multiplicity of annular metal islands 3 each bounding a hole in the board and discrete with respect to the other annular islands. The rigid board 1 may also carry on said one or each of its major surfaces supplementary metal islands 4 and 5 each positioned between and discrete with respect to annular islands bounding adjacent holes in the rigid board. A circuit of either a standard or non-standard pattern can be formed by electrically interconnecting selected adjacent metal islands 3, 4 and 5 with local deposits of material of high electrical conductivity in such a way as to bridge the gap between adjacent islands. The local deposits may be effected manually but are preferably effected automatically using a modified computer aided design plotter or an automatic fluid dispensing machine.
摘要:
A panel board has a first voltage layer sandwiched between two ground layers at a close spacing to produce a large distributed capacitance; the two ground layers are connected by plated-through conductive holes spaced regularly across the board; a second (exposed) voltage layer is connected by regularly spaced plated-through holes to the first voltage layer, increasing the current carrying capacity of, and reducing the resistance across, the board; the plated-through holes are arranged in rows and columns in a pattern permitting the mounting of decoupling capacitors, at any point on the board, in a position parallel to the rows or parallel to the columns; and a socket terminal can be electrically connected directly to the exposed voltage layer or to the exposed ground layer using a ring connector.
摘要:
Un circuit électrique (32) se compose d'une pluralité de couches (30, 100), chaque couche (30, 100) comprenant un ou plusieurs cheminements électriques (36, 38), chaque couche (30, 100) comprenant également une isolation (34) isolant au moins une partie d'une couche (38) d'une autre couche (100). Les cheminements (36, 38) comprennent des motifs répétitifs (40, 42). Chaque cheminement (36, 38) de chaque couche (30, 100) peut communiquer avec les cheminements (36, 38) des couches adjacentes (30, 100). Quelques parties des motifs (40, 42) qui comprennent les cheminements (36, 38) de chaque couche (30, 100) peuvent être au moins partiellement alignées avec quelques parties des motifs (40, 42) des cheminements (36, 38) des autres couches (30, 100). D'autres parties des cheminements (36, 38) des couches (30, 100) restent non alignées. Un laser à impulsions (134) peut être utilisé pour sectionner les parties non alignées des cheminements (36, 38), de manière à créer le circuit électrique désiré (32). Des composants peuvent être fixés sur le circuit électrique selon les besoins. En outre, un tel circuit peut être utilisé dans la construction des couches de métallisation finales de puces telles que des réseaux de portes.
摘要:
A wiring board (10) comprising: a substrate (11) having transparency; and an antenna pattern region (20) which is arranged on the substrate (11) and includes a plurality of antenna wirings (21) having a function as an antenna, wherein an aperture ratio (Ac) of a widthwise central portion (20c) of the antenna pattern region (20) is higher than an aperture ratio (Ae) of a widthwise edge portion (20e1, 20e2) of the antenna pattern region (20).
摘要:
There is provided a smart package and monitoring system having a status indicator and a method of making the same. The smart package includes an electronic sensor monitoring tag having re-usable electronic circuitry and power source along with a conductive grid printed on a thin flexible substrate and connected to the tag so the tag and grid are in electrical continuity to form a monitoring device. The conductive grid is aligned with an opening of the smart package. The smart package can also include an optical ink indicator configured to display the status of the package. A multiplexer can be used to connect the tag to the conductive grid. The conductive grid can include capacitive sensors formed on a thin plastic layer and positioned so as to form a capacitive element with the conductive side of the blister.