International Business Machines Corporation

Mark J Kuzawinski

Sylvain E Ouimet

Mark Budman

Frederic Beaulieu

Jean-Guy Quintal

Stephane Mainville

Edward M Wolf

Guy Robichaud

Daniel Joseph Hunt

David Earl Riehm

Edward J Zielinski

Douglas M Saunders

An integrated circuit package comprises a set of bond fingers for connecting wire bonds from the chip, the bond fingers being placed overlapping on a transverse axis from the chip and extending inwardly and outwardly from vias positioned at different positions along the transverse axis, so that wire bonds connected to adjacent fingers have the same length.

Integrated circuit package with overlapping bond fingers

A method for reducing the number of wire-bond loop heights which are required in comparison with a total quantity of power and signal rings employed in low profile wire-bond integrated circuit packages. There are also provided low profile wire-bond packages which are produced in accordance with the method pursuant to the invention.

Method to reduce number of wire-bond loop heights versus the total quantity of power and signal rings

A plating tail connected to a signal trace for use during an electroplating operation is fabricated such that it has a substantially different impedance from the signal trace at a characteristic frequency in use, so that adverse reflections during operation are reduced below a threshold of significance.

Plating tail design for IC packages

The present invention provides an adapter for utilizing a PCMCIA card in a desktop computer which has at least one card slot and one bay. The adapter includes a logic card configured to be inserted into the card slot of the computer. The logic card has logic thereon to convert PCMCIA bus architecture of the PCMCIA card to the bus architecture of the desktop computer in a bidirectional manner. There may be at least one PCMCIA card receiving slot on the logic card connected to the logic. A first set of external connectors on the logic card is connected to one end of a multi-conductor flexible cable. An outrigger card which includes at least one PCMCIA card is provided which is configured to be inserted into an externally accessible bay of the computer. A second set of connectors on the outrigger card is connected to the opposite end of the multi-conductor flexible cable. Conductors on the outrigger card connect the second set of connectors on the outrigger card to the PCMCIA card receiving slot(s) thereon. Capacitors are connected between at least some of the conductors and a plane maintained at a predetermined voltage on the outrigger card in order to reduce the distortion of the signals received from the flexible conductor at the outrigger card.

Method and apparatus for providing a remotely located outrigger card

A flex circuit, which is fabricated from metallization on thin film, is mounted between two opposite sides of frame to form an electronic card sized to fit as a replacement for a rigid epoxy glass card in a card carrier having a backplane. Appropriate placement of electrical components on the flex circuit and using a flex circuit longer than the spacing between the opposite sides of the frame to which the flex circuit is mounted, allows the use of taller parts on adjacent cards in the card carrier, since the flex circuit can be conformed to eliminate obstructions caused by insufficient spacing between cards.

Flex circuit electronic cards

A shared power controller for a rack of interface devices which are shared among a plurality of processor units. The shared power controller may be commanded into a power up mode by any connected central processor via its system power interface. A power down of a connected rack of interface units may, however, only be effected when all the connected CPU units enter a power down mode. A system power controller provides both remote and local operation such that diagnosis and analysis of problems may be effected locally at each rack of input/output devices.

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Maine, NY, United States of America

Mark J Kuzawinski