Abstract:
A semiconductor chip module has semiconductor chips (12) each having contacts on its entire front face, and a multi-layered organic circuit board (15) having a small dielectric constant intermediate ceramic substrates (11) having the same thermal expansion coefficient as that of the semiconductor chip (12), each having contacts on its front and back faces corresponding to those of the semiconductor chip (12) and being electrically connected directly in a one to one relationship. The contacts on the semiconductor chip (12) and the corresponding contacts on the substrates (11) are connected by a solder, the contacts on the other of the substrate (11) and the corresponding contacts on the multi-layered ceramic circuit board (15) are connected by respective conductive pins (14) having a predetermined flexibility and rigidity through a predetermined gap therebetween. In this way there is the possibility of the relative displacement due to theremal expansion difference between the intermediate ceramic substrate (11) and the multi-layered organic circuit board (15).
Abstract:
A novel plastic molded chip carrier package for an integrated circuit chip has a carrier member 10 molded of a plastic material to which are integrally embeded a plurality of I/O pins 20 and a conductor member 30 for interconnection between the terminals of the chip 5 and the corresponding I/O pins 20 to provide a unitary construction obtained at a single molding process. This plastic molded chip carrier package is preferred to have integral positioning studs 12 which project in the same direction of the I/O pins 20 for abutment against a printed circuit board 1 for mounting the package in a spaced relation thereto with the I/O pins 20 plugged into metallized through holes 2 provided in the board 1. A method of fabricating the plastic chip carrier package is also disclosed to comprise the steps of placing a plurality of I/O pins 20 into corresponding vertical slots 52 formed in a molding die 51 with the top portion of the I/O pins 20 projecting above the molding die surface; supporting a conductor member 30 on the I/O pins 20 with the distal top ends of the I/O pins 20 extending into correspondingly through holes 33 formed in the conductor member 30, the conductor member 30 including a plurality of conductor lines 31 for electrical interconnection between the individual I/O pins 20 and the terminals of the chip 5 ; and filling a molten plastic material at least between the conductor member 30 and the molding die surface and solidifying the same so as to form thereat a plastic carrier member 10 to which the conductor member 30 is integrally embeded together with the top portions of the I/O pins 20.
Abstract:
The invention relates to an apparatus (20) for making contact with a direction-dependent electrical and/or electronic component (10) comprising a predefined first number of functions with which contact is to be made, having a main body (21) and a predefined first number of first contact elements (23) which are each assigned to a function with which contact is to be made according to a predefined connection assignment and are arranged on the main body (21) with predefined positioning, and to an associated component arrangement having such a contact-making apparatus (20). According to the invention, the first contact elements (23) are positioned on the main body (21) in a rotationally symmetrical manner through an angle of 90°, with the result that no different component-based functions lie on one another when the direction-dependent electrical and/or electronic component (10) is rotated through 90°.
Abstract:
A system and method are disclosed in which flex cables are affixed to PCBs, for providing high-speed signaling paths between ICs disposed upon the PCBs. The flex cables are fixably attached to the PCBs so as to substantially mimic their structural orientation. Where the configuration includes more than one PCB, the flex cables include multiple portions which are temporarily separable from one another and from the die, using flex-to-flex and flex-to-package connectors, allowing field maintenance of the configuration. By routing the high-speed signals between ICs onto the flex cable, single-layer PCBs can be used for non-critical and power delivery signals, at substantial cost savings. By disposing the flex cables onto the PCB rather than allowing the cables to float freely, the configuration is thermally managed as if the signals were on the PCB and cable routing problems are avoided.
Abstract:
A method for implementing a circuit component (160) on a surface of a multilayer circuit board (110) is provided. The circuit component includes a plurality of pins (162,164,166,168,170,172,174,176) and the circuit board (110) includes a plurality of electrically conductive vias (142,148,150,152,156) penetrating at least one layer of the circuit board (110) and being arranged so as to form at least one channel for routing one or more traces at one or more signal layers of the circuit board (110). The method comprises the step of forming at least one pin (162,168A,170A,172,176A) of the plurality of pins (162,164,166,168,170,172,174,176) of the circuit component (160) to have a length compatible with a depth of a corresponding via (142,148,150,152,156) of the circuit board (110).
Abstract:
A power delivery device includes a socket to couple and deliver power to an electronic component. A voltage control sensor is coupled to the socket to sense an output voltage at the socket and to provide negative feedback control. An impedance of the socket and an associated baseboard is incorporated into the negative feedback control and may help compensate for voltage droop in the output voltage.
Abstract:
A printed circuit board (10) of a multilayer structure has a plurality of pads (12B, 12C) embedded together with a wiring pattern (11) in an inner layer thereof. An insulating material on the pads (12B, 12C) is removed from the printed circuit board (10) to form recesses (14B, 14C) through which the pads (12B, 12C) are exposed. A semiconductor package (22) is placed on the printed circuit board (11), and solder balls (20B, 20C) of the semiconductor package (22) are directly connected to the pads (12B, 12C) through the recesses (14B, 14C).
Abstract:
An adaptor pin for connection to a printed circuit board includes an elongated electrically conductive pin having an enlarged portion adjacent one end for forming a mechanical interference fit with a hole partially drilled through the circuit board. The pin has an enlarged cross-sectional solder portion intermediate the enlarged portion and the opposite end of the pin so as to limit the extent of penetration of the pin into the hole of the circuit board. The enlarged portion of each pin is electrically connected by soldering to a circuit path on the circuit board. By this arrangement, a rigid mechanical connection between the pin and the circuit board is effected, and thus subsequent reheating of the board for connecting a surface mounted chip to the opposite side of the board will not interfere with the electrical and mechanical connection between the adaptor pin and the circuit board.