Abstract:
A vertical routing structure for a multi-layered substrate having a lamination structure therein. The lamination structure has at least a through hole that links up both surfaces of the lamination structure. The vertical routing structure comprises a conductive rod and a conductive layer. The conductive rod is formed inside the through-hole with the ends protruding above the respective upper and lower surface of the lamination structure. The conductive layer is positioned in the space between the interior sidewall of the through-hole and the conductive rod. The vertical routing structure on the substrate is able to reduce the area for laying the required circuits or increase the wiring density in a given area.
Abstract:
A display device includes an organic electrroluminescence device provided on a first substrate, conductive metallic films provided on the first substrate at such positions as not to overlap with the organic electroluminescence device, a second substrate having a plurality of holes and conductive connection portions which are provided at peripheral portions forming the holes, and solder portions charged in the holes of the second substrate and, by being melted, electrically connecting the conductive metallic films of the first substrate with the conductive connection portions of the second substrate.
Abstract:
A Land Grid Array structure is enhanced with a flex film interposer that not only provides a Land Grid Array (LGA) electrical connection between a Multi-Chip Module (MCM) and the next level of integration such as a system board, but also provides a reliable means to implement desired Engineering Change (EC) capability as well as a means for decoupling power to ground structure to minimize switching activity effects on the System. The invention as described can be implemented for EC repair, for Capacitive Decoupling or both.
Abstract:
The surface mounting of a backset microwave package on a printed circuit. After the package has been accurately positioned against the printed circuit the connections are produced by soldering the conducting elements in direct contact. A chip is enclosed in a sort of cage constituting a screen which replaces a conventional cover, the cage is formed by layouts borne respectively by the package and the printed circuit and is linked together by metal links. The surface mounting is particularly applicable to packages operating in millimetric microwaves.
Abstract:
A die-up configuration includes a rigid circuit board with electrically conductive plated-through holes formed therethrough and an integrated-circuit die mounted to the upper surface of which a flexible insulated tape layer is fixed to the upper surface of a rigid circuit board and which has a number of wire-bonding sites. Conductive vias or plated-through holes are provided for connecting the wire-bonding sites on the upper surface of the flexible insulated tape layer to the contact areas formed on the lower surface of the flexible insulated tape layer. Conductors are provided for connecting respective contact areas on the lower surface of the flexible insulated tape layer to solder balls on the bottom of the rigid circuit board.
Abstract:
A printed wiring board has a circuit substrate 6 having a conductor circuit 5 and a through hole 60, and also has a joining pin 1 inserted into the through hole. The joining pin is manufactured by using a material unmelted at a heating temperature in joining the joining pin to an opposite party pad 81. The joining pin is constructed by a joining head portion 11 having a greater diameter than an opening diameter of the through hole. The joining pin forms a joining portion for joining and connection to the opposite party pad. The joining pin has a leg portion 12 having a diameter smaller than the through hole. The leg portion is inserted into the through hole and is joined to the through hole by a conductive material such as a soldering material 20, etc. In lieu of a joining pin, a joining ball approximately having a spherical shape can be joined to the through hole by the conductive material.
Abstract:
A first substrate has a plurality of bumps and a second substrate has a plurality of openings at positions in registration with the plurality of bumps when the first and second substrates are placed one on top of the other in a confronting manner. The first and second substrates are put together by fusing a sealing wall formed on the second substrate, to hermetically seal an electronic device lying on the first substrate therein. Gas that may be generated upon fusing of the sealing wall can be effectively removed through the openings in the second substrate.
Abstract:
An electronic unit is provided that effectively utilizes the upper surface of a circuit board as a wiring pattern and reduces the size of the electronic unit. Wiring patterns and grounding patterns are provided on the upper surface of a circuit board. The wiring patterns and grounding patterns are connected to wiring terminal electrode portions and grounding terminal electrode portions by connection conductors, respectively, provided in through-holes. This allows a cover, covering electronic parts on the circuit board, to be effectively mounted as the entire outer periphery of the first surface of the circuit board is covered.
Abstract:
A method is provided for connecting two conductive layers in an electronic circuit package comprising the steps of forming dendrites on selected regions of a first conductive layer, forming dendrites on selected regions of a second conductive layer, applying an epoxy adhesive material over the first conductive layer, and compressively attaching the second conductive layer to the first conductive layer such that the dendrites on the first conductive layer contact the dendrites on the second conductive layer. Also claimed is an electronic circuit package incorporating the dendrites used for electrical interconnection manufactured in accordance with the present invention. An alternative embodiment of the invention utilizes an intermediate surface metal with dendrites in place of a nullthrough via.null