Abstract:
The invention relates to arrangements for the power supply of integrated circuits. Various solutions are proposed with a view to guaranteeing a power supply satisfying all the technical requirements with regard to ever greater permissible load jumps, greater permissible current change rates and ever tighter tolerances regarding the constancy of the supply voltage in question. In particular an arrangement with an integrated circuit (2) mounted on a bearing means (1) and a power supply module arrangement (3) is proposed, which is placed on the combination of bearing means (1) and integrated circuit (2) and whose base extends at least partially over the base of the integrated circuit (2) and/or all around the base of the integrated circuit (2).
Abstract:
A modular printed circuit (PC) board (52) construction for achieving greater circuit design flexibility wherein a predetermined circuit is segmented into a plurality of sub-parts, each circuit sub-part is embodied in a separate sub-circuit board or PC module (24, 26, 28), and the plurality of PC modules are interconnected to one another in an overlapping arrangement to implement the predetermined circuit. In one embodiment, the modular circuit board construction (52) is achieved by forming a plurality of openings (16, 18, 20, 22) through a primary circuit board (10). The present modules (24, 26, 28) are positionable over any one of the plurality of openings (16, 18, 20, 22) associated with the primary circuit board (10) adjacent either the top or bottom surface (12, 14) thereof and still other modules are stackably positionable on top of and interconnectable to other modules previously connected to the primary circuit board (10). In another embodiment, the entire predetermined circuit can be assembled and implemented by merely interconnecting the appropriate circuit modules. The overlapping arrangement of the present construction also enables the present modules (24, 26, 28) to include surface mounted components (36, 38) on both opposite surfaces thereof.
Abstract:
A control device such as a numerical controller constituted of a plurality of printed boards on which are mounted various circuit components. Input/output interface connectors (9) are mounted on the printed board (1) in a manner that the lengthwise directions thereof are oriented in the vertical direction relative to the mounting surface of the printed board. Module boards (10) are mounted in the vertical direction relative to the mounting surface of the printed board (1). The module boards (10) have a height nearly equal to the height of the interface connectors (9). This makes it possible to increase the number of circuit components that can be mounted in a unit space, and to decrease the outer size of the whole control device.
Abstract:
Bei einem Verfahren zur Integration eines Bauteils (3) in eine Leiterplatte sind folgende Schritte vorgesehen: - Bereitstellen von zwei fertig gestellten, und insbesondere aus einer Mehrzahl von miteinander verbundenen Lagen bzw. Schichten (6, 7, 8) bestehenden Leiterplattenelementen (1, 4), wobei wenigstens ein Leiterplattenelement (4) eine Ausnehmung bzw. Vertiefung (10) aufweist, - Anordnen des zu integrierenden Bauteils (3) auf einem der Leiterplattenelemente (1) oder in der Ausnehmung des wenigstens einen Leiterplattenelements, und - Verbinden der Leiterplattenelemente (1, 4) unter Aufnahme des Bauteils (3) in der Ausnehmung (10), wodurch eine sichere und zuverlässige Aufnahme eines Bauteils bzw. Sensors (3) in einer Leiterplatte erzielbar ist. Darüber hinaus wird eine derartige Leiterplatte mit einem darin integrierten elektronischen Bauteil (3) zur Verfügung gestellt.
Abstract:
An oscillator assembly includes an oscillator circuit that is configured to generate a frequency signal. A temperature compensation circuit is in communication with the oscillator circuit and adapted to adjust the frequency signal in response to changes in temperature. The oscillator and temperature compensation circuits are located within an oven. A heater and a temperature sensor in communication with the heater are also both located in the oven. The temperature sensor is adapted to directly control the heater in response to changes in temperature. In one embodiment, the oscillator components are mounted to a ball grid array substrate which, in turn, is mounted on a printed circuit board. In this embodiment, a resonator overlies the ball grid array substrate and a lid covers and defines an oven and enclosure for the resonator and the ball grid array substrate. The oscillator and temperature compensation circuit are defined on the ball grid array substrate.
Abstract:
A method according to one embodiment may include providing a circuit board having a connector footprint including a plurality of electrical contacts and providing a mezzanine card including a first plurality of conductive traces on a first side of the mezzanine card. The method of this embodiment may also include providing a first wiring board disposed between at least a portion of the circuit board and at least a portion of the mezzanine card. The first wiring board may electrically couple at least a portion of the electrical contacts of the connector footprint to at least a portion of the conductive traces of the mezzanine card. Of course, many alternatives, variations, and modifications are possible without departing from this embodiment.
Abstract:
A substrate for at least one substantially plate-shaped IC for the purpose of enabling the at least one IC to be connected with a connecting board. The substrate is connected with a spacer for maintaining, in use, such a distance between the substrate and the connecting board that at least one IC is placeable between the substrate and the connecting board.
Abstract:
The present invention features an ultra high density, three-dimensional electronic circuit package suitable for constructing high capacity, high speed computer memory cards and the like. A demountable contact system allows easy test and/or burn-in. A memory card (20) has a number of electrical receptacles adapted to receive a daughter card (16). The daughter card (16) has memory devices (14 and 18) attached to it and a corresponding number of electrical connectors placed along at least one edge, adapted to detachably mate with the electrical receptacles of the memory card. The demountable connectors allow easy rework of the module before optional, permanent solder attach. Bare dies (14 and 18) or thin packages are mounted onto daughter cards (16), which in turn are mounted onto either a mother board or memory card (20) using pin/hole technology.
Abstract:
A multichip module with a substrate which is equipped on its component side with an IC component and other electronic components interconnected by electroconducting lines. Electric leadthroughs extend from the component side to the bottom side of the substrate and are connected to solder contacts arranged on the bottom side of the substrate to electrically connect the multichip module to a subassembly support. In order to reduce the density of printed circuits on the top side of the multichip module and to reduce the number of required substrate layers, a support is arranged between each IC component and the substrate and comprises printed circuits and components connected by means of first connecting surfaces to the corresponding IC component and by means of second connecting surfaces to connections on the substrate.