Abstract:
A multilayer interconnection substrate having, e.g., first to third power interconnections provided with first to third interconnection layers. A first insulating layer is provided between the first and second interconnection layers, and a second insulating layer is provided between the second and third interconnection layers. A plurality of first via holes are provided at said first insulating layer and connect the first and second power interconnections and a plurality of second via holes are provided at said second insulating layer with their position being shifted from that of the first via holes and connect the second and third power interconnection.
Abstract:
A heating arrangement for heating a seat has a temperature responsive element and a control circuit for controlling the supply of electrical current to the heating element which is embedded in the seat. The control circuits formed of components mounted on a flexible printed circuit board.
Abstract:
A ceramic multilayer wiring substrate having a stack of a plurality of ceramic sheets each being formed with through holes which are connected to one another by a conductive paste buried in said through holes. Among the ceramic sheets, those which constitute an intermediate layer portion each is formed with a plurality of parallel through holes which are spaced apart in the direction perpendicular to the direction of thickness of the ceramic sheet. With such through holes, the substrate reduces the resistance in the intermediate layer portion and, therefore, the conduction resistance of the entire through holes.
Abstract:
A wiring substrate, a film carrier, a semiconductor device made by using the film carrier, and a mounting structure comprising the semiconductor device are disclosed.The wiring substrate comprises:a conductor pattern which has a bonding pad and is formed on the rear surface of an insulating support;at least one of minute through-holes which are provided in a region of the insulating support where the bonding pad is in contact therewith, or which are provided a region of the insulating support where the bonding pad is in contact therewith and in the vicinity of the region, the through-holes running in the direction of the thickness of the insulating support;a conductive passage which is made of a metal material and which is formed in the through-holes that are provided in a region of the insulating support where the bonding pad is in contact therewith; anda bump-like metal protrusion which is formed on the conductive passage and which is protruded from the front surface of the insulating support.
Abstract:
A single in line type semiconductor device is disclosed which has a plurality of lead-in wires extending from a package. In this semiconductor device, a heat sink is embedded in one surface of the package and an appropriate number of lead-in wires are bent on the other surface side of the package, to provide an offset array of the lead-in wires arranged in two rows. A projection is formed on the above appropriate number of lead-in wires on one surface side of the package, such that it extends in a direction perpendicular to that in which the lead-in wires extend. In this semi-conductor device, when the external lead-in wires are inserted into, and joined by means of soldering to a printed circuit board, the package is prevented from being inclined toward the heat sink side by the projection of the external lead-in wire, so that it may be set upright relative to the printed circuit board.
Abstract:
A package and circuit arrangement having rotational symmetry wherein positive and negative terminals are connected on both opposite ends of the package and also connected to an electrical component within the package. The positive terminals are diagonally aligned with respect to an axis of symmetry for the package, and the negative terminals are also diagonally aligned with respect to this axis of symmetry. Thus, the component within the package is always properly biased when the package is inserted into a circuit board receptacle having positive and negative terminals which are matched in position and polarity with those of package regardless of planar orientation of the package on the receiving surface of the circuit board.
Abstract:
A novel solder pad configuration for printed circuit boards is disclosed which is resistant to solder occlusion upon wave soldering. On the solder side of the circuit board the solder pad is substantially C-shaped and partially surrounds a non-plated through-hole. Via holes prvide electrical connection between the pad on the solder side of the board and the corresponding pad on the component side of the circuit boards. The invention is particularly applicable to the chassis ground mounting holes of PCB's.
Abstract:
A housing of a conformal wearable battery (CWB) encloses a plurality of battery cells arranged in a grid-like pattern and electrically connected to a printed circuit board (PCB). The PCB includes an electrical connection pad that is electrically coupled to a positive terminal of a battery cell of the plurality of battery cells and a positive conductive region receiving electrical energy from one or more of the plurality of battery cells. A redundant trace fuse circuit is formed on the PCB. The battery cells may be a lithium-ion pouch cell that includes a body portion, a porch section and a battery cell terminal connected to the porch section. A plurality of compressible support members may be located on the flexible PCB at specific locations such that a support member is located between a battery cell terminal of each battery cell and the flexible PCB.
Abstract:
Apparatuses and methods including conductive vias of a printed circuit board are described. An example apparatus includes a first layer including a first conductive plate; a component on the first layer, a second layer including a second conductive plate that may be coupled to an external power source; a third layer between the first layer and the second layer, the third layer including a third conductive plate; a first via coupling the first conductive plate to the second conductive plate; and a second via coupled to the first conductive plate. The first conductive plate includes a first portion coupled to the first via and the first conductive plate further includes a second portion coupled to the second via between the first portion and the component. The second via is coupled to either the second conductive plate or the third conductive plate.
Abstract:
An illuminated display includes a plurality of illumination means, in particular a plurality of LEDs, which are arranged on a transparent base member. The transparent base member reduces visible light on average by a maximum of 40%. Preferably, the transparent base member is constructed in the form of a film, or in a further preferred manner in the form of a plastics material film. The illumination means are supplied with voltage by means of strip conductors. The strip conductors are electrically connected at one end preferably to a control unit and at the other end to at least one illumination means.