Abstract:
PROBLEM TO BE SOLVED: To provide a multichip module composed of a large number of chips. SOLUTION: A multichip module comprises a circuit board, having an array of an electrical interconnection pad on which mounted a plurality of IC package units 201. Each IC package unit comprises a plurality of IC packages and is mounted on the opposite surface of a package carrier. The package units can be mounted on one or both surfaces of the circuit board. Various kinds of package carriers are used to generate many different modules. One type of carriers has a pair of main planar surfaces. Each planar surface incorporates an electrical contact pad 304. At least one IC package is mutually connected a connection element (lead line) of a package, having a contact pad on the planar surface and is mounted on the surface of each main planar surface and IC package unit is formed. COPYRIGHT: (C)2004,JPO
Abstract:
PROBLEM TO BE SOLVED: To provide a carrier which allows increasing the density of integrated circuit (IC) chips installed on a board, and a wide standard IC chip package design which can be connected to a printed wiring board in a three-dimensional array; and to provide a system and a method for inspecting a carrier and chips in the state that they are all connected to a circuit of a large scale system. SOLUTION: A device and a method allow disposing three-dimensionally arrayed semiconductor chips on a board. The disclosed unique chip carrier allows locating an arbitrary IC chip on another IC chip on a board. The carrier allows inspection of IC chips on the carrier or under the carrier without separating the carrier and chips from the system even if the carrier and chips are of BGA type or CSP type. The carrier contains an exposed inspection point for enabling the on-site inspection. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a multi-chip module especially useful for increasing the density of memory chips on a memory module used in a computer system. SOLUTION: The multi-chip module includes a main circuit board having an array of electrical interconnection pads to which are mounted a plurality of IC package units. Each IC package unit includes a pair of IC packages, both of which are mounted on opposite sides of a package carrier. The package units may be mounted on one or both sides of the main circuit board. A first primary embodiment of the invention employs a laminar package carrier having a pair of major planar surfaces. Each planar surface incorporates electrical contact pads. One IC package is surface mounted on each major planar surface, by interconnecting the leads of the package with the contact pads on the planar surface, to form the IC package unit. COPYRIGHT: (C)2004,JPO&NCIPI
Abstract:
An improved multi-chip module includes a main circuit board having an array of electrical interconnection pads to which are mounted a plurality of IC package units. Each IC package unit includes a pair of IC packages, both of which are mounted on opposite sides of a package carrier. The package units may be mounted on one or both sides of the main circuit board. A first primary embodiment of the invention employs a laminar package carrier having a pair of major planar surfaces. Each planar surface incorporates electrical contact pads. One IC package is surface mounted on each major planar surface, by interconnecting the leads of the package with the contact pads on the planar surface, to form the IC package unit. Several different variations of the chip module are disclosed.
Abstract:
An improved multi-chip module includes a main circuit board having an array of electrical interconnection pads to which are mounted a plurality of IC package units. Each IC package unit includes a pair of IC packages, both of which are mounted on opposite sides of a package carrier. The package units may be mounted on one or both sides of the main circuit board. A first primary embodiment of the invention employs a laminar package carrier having a pair of major planar surfaces. Each planar surface incorporates electrical contact pads. One IC package is surface mounted on each major planar surface, by interconnecting the leads of the package with the contact pads on the planar surface, to form the IC package unit. Several different variations of the chip module are disclosed.
Abstract:
Un portador (100) de paquetes que comprende: un cuerpo (101) dieléctrico que tiene superficies (102U, 102L) planas mayores paralelas superior e inferior; una primera ordenación (103) de tomas de montaje adherida a dicha superficie (102U) plana mayor superior, estando dicha primera ordenación (103) de tomas de montaje dimensionada para recibir los conductores (502) de un primer paquete (501) de circuitos integrados; una segunda ordenación (105) de tomas de montaje adherida a dicha superficie (102L) plana mayor inferior; un conjunto de conductores (108; 701) en el que cada conductor (301, 302, 304; 701) de portador está enlazado conductivamente con una toma (106) de dicha segunda ordenación (105), estando dicho conjunto de conductores (108; 701) de portador espaciado y configurado para el montaje de superficie sobre una placa (503) de circuito impreso; caracterizado porque cada toma (106) de dicha segunda ordenación (105) está acoplada a una toma (104) de dicha primera ordenación (103) por medio de un abertura (107) metalizada interiormente que se extiende entre dicha superficie (102U) plana mayor superior y dicha superficie (102L) mayor inferior; y el portador (100) de paquetes comprende además un pozo (303, 305, 801) de calor incorporado dentro del cuerpo dieléctrico (101) y los conductores (301, 302, 304; 701).
Abstract:
An improved multi-chip module includes a main circuit board having an array of electrical interconnection pads to which are mounted a plurality of IC package units. Each IC package unit includes a pair of IC packages, both of which are mounted on opposite sides of a package carrier. The package units may be mounted on one or both sides of the main circuit board. A first primary embodiment of the invention employs a laminar package carrier having a pair of major planar surfaces. Each planar surface incorporates electrical contact pads. One IC package is surface mounted on each major planar surface, by interconnecting the leads of the package with the contact pads on the planar surface, to form the IC package unit. Several different variations of the chip module are disclosed.
Abstract:
A package carrier (100) for increasing the circuit density on printed circuit boards (503). The package carrier (100) mounts on a printed circuit board (503) on top of a first integrated circuit package (507) that is also mounted on the printed circuit board (503). The carrier (100) has an upper major surface (102U) having a pad array on which a second integrated circuit package (501) is mountable. The carrier (100) has a plurality of leads by means of which the carrier (100) is surface mounted to the printed circuit board (503). Each carrier lead is also electrically connected to a single pad of the pad array on the upper surface (102U). The integrated circuit package (507) beneath the carrier (100) shares all or most printed circuit board (503) connections in common with the carrier (100) and consequently the integrated ciurcut package (501) mounted upon the carrier (100). The carrier (100) also includes heat sink or heat disipation structures.
Abstract:
An improved multi-chip module includes a main circuit board having an array of electrical interconnection pads to which are mounted a plurality of IC package units. Each IC package unit includes a pair of IC packages, both of which are mounted on opposite sides of a package carrier. The package units may be mounted on one or both sides of the main circuit board. A first primary embodiment of the invention employs a laminar package carrier having a pair of major planar surfaces. Each planar surface incorporates electrical contact pads. One IC package is surface mounted on each major planar surface, by interconnecting the leads of the package with the contact pads on the planar surface, to form the IC package unit. A second primary embodiment of the invention utilizes a carrier substrate, which has a pair of recesses for back-to-back surface mounting of the IC package pair. The two IC packages may be in contact with opposite sides of a heat sink layer embedded within the carrier substrate. Each resulting IC package unit is surface mounted to the main circuit board. A third primary embodiment of the invention incorporates features of both the first and second primary embodiments. One of the packages is mounted on a planar surface of the carrier right side up, while the other package is mounted on the carrier in a recess upside down. Several variants of this embodiment are possible. Either the IC package that is mounted on the planar surface of the carrier, or the IC package that is mounted within the recess, may be mounted adjacent to the main circuit board. In the former case, the adjacent package of the package unit fits within a recess on the main circuit board. In the latter case, the adjacent package of the package unit mounts on a planar surface of the main circuit board. For any of the three primary main embodiments, the carrier may be equipped with its own set of interconnection leads which interface with the interconnection pads on the main circuit board or connection may be made directly between the leads of one package and the interconnection pads of the circuit board.
Abstract:
An apparatus and method is disclosed that allows for the arranging in a three dimensional array semiconductor chips on a circuit board. A unique chip carrier is disclosed on which any IC chip can be positioned on above the other on a circuit board. Additionally, the carrier allows for the testing of IC chips on the carrier and underneath it without having to remote the carrier and chips from the system even if they are of the BGA or CSP type. The carrier includes exposed test points to allow an on site test.