CONNECTION STRUCTURE BODY OF CHIPS

    公开(公告)号:JPH05211205A

    公开(公告)日:1993-08-20

    申请号:JP21193492

    申请日:1992-08-10

    Applicant: IBM

    Abstract: PURPOSE: To provide a chip-connecting structure which enable defect correction, wiring modification and mounting of different types of chips. CONSTITUTION: An interconnection between a chip 12 and a wiring substrate 133 is effected by a beam/lead wiring layer having ball-shaped bonding contacts. The chip 12 has conductive pads 234, 235 and 236 thereon, while the wiring substrate 133 has conductive pads 35, 39 and 82 thereon. A wiring layer 10C has a conductive beam/lead 13C formed on an insulating film. The insulating film has openings 215 and 315 therein, and the beam/lead is extended into the opening. The beam/lead has ball-shaped bonding contacts at its both ends, one 238 of which is connected to the conductive pad 39 of the wiring substrate 133, and the other of which is connected to the conductive pad 236 of the chip.

    MOUNTING STRUCTURE OF ELECTRONIC COMPONENT

    公开(公告)号:JPH04277639A

    公开(公告)日:1992-10-02

    申请号:JP28980791

    申请日:1991-11-06

    Applicant: IBM

    Abstract: PURPOSE: To provide a mount structure which connects conductors fitted to a carrier at difference height positions to contact places on a flat substrate. CONSTITUTION: On a surface 1 of the substrate, connection parts 5, 6, and 7 in a swelled shape are formed and made tall enough to reach the height position of individual conductors 15, 17, and 19 to which their connection parts fitted to the carrier 11 are bonded. In the extension plane of the conductors, the conductor and connection parts are bonded. To form the connection part in the swelled shape, sticking bodies of solder are stuck and formed on a pad formed on the surface of the substrate and the connection parts are made spherical by surface tension by performing a reflow process for the sticking bodies. The heights of the connection parts after the reflow process can be controlled by the area of the pad and the volumetric amount of the solder which is stuck and formed.

    STEPPED PACKAGE FOR ELECTRONIC DEVICE

    公开(公告)号:JPH05211281A

    公开(公告)日:1993-08-20

    申请号:JP18924292

    申请日:1992-07-16

    Applicant: IBM

    Abstract: PURPOSE: To provide an electronic device package which can stack electronic devices with high density, can secure electrical interconnection of the electronic devices and can have superior heat radiation effect. CONSTITUTION: A plurality of electronic devices 40 are arranged in a stacked manner, and each has a contact position 24 close to one end of each device. The electronic devices are arranged as in steps, so that the lower contact positions of the devices are exposed and are arranged along contact positions 46 on a substrate as opposite thereto, whereby the devices are electrically connected with the substrate. Thereby a large number of electronic devices of the step-like structure can be packaged with a high density and can easily radiate heat, generated in the electronic devices when combined with a heat radiating means 50.

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