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 circuit board (301) having an array of electrical interconnection pads to which are mounted a plurality of IC package units (201). Each IC package unit (201) includes multiple IC packages (105) which are mounted on opposite sides of a package carrier (101). The package units (201) may be mounted on one or both sides of the circuit board (301). A variety of package carriers are used to create a number of different modules. One type of package carrier (101) has a pair of major planar surfaces (102). Each planar surface (102) incorporates electrical contact pads (103). At least one IC package (105) is surface mounted on each major planar surface by interconnecting the conntection elements or leads (104) of the package (105) with contact pads (103) on the planar surface (102), to form the IC package unit (201). Another type of package carrier substrate has multiple recesses for back to back surface mounting of the IC packages. The packages also include in various versions heat sinks.
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 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:
AN APPARATUS AND METHOD IS DISCLOSED THAT ALLOWS FOR THE ARRANGING IN A THREE DIMENSIONAL ARRAY SEMICONDUCTOR CHIPS ON A CIRCUIT BOARD(49). A UNIQUE CHIP CARRIER IS DISCLOSED ON WHICH ANY IC CHIP CAN BE POSITIONED ON ABOVE THE OTHER ON A CIRCUIT BOARD(49). ADDITIONALLY, THE CARRIER ALLOWS FOR THE TESTING OF IC CHIPS ON THE CARRIER AND UNDERNEATH IT WITHOUT HAVING TO REMOVE 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.FIG. 1 & 2
Abstract:
A METHOD AND APPARATUS FOR FABRICATING A THREE DIMENSIONAL ARRAY OF SEMICONDUCTOR CHIPS IS DISCLOSED. THE METHOD USES A MULTIPLE STEP FABRICATION PROCESS THAT AUTOMATES THE SURFACE MOUNTING OF SEMICONDUCTOR CHIPS WITH UNIQUE CHIP CARRIERS (21) TO ACHIEVE THE THREE DIMENSIONAL ARRAY OF CHIPS. THE METHOD INCLUDES A STEP OF DEPOSITING SOLDER ON A MULTITUDE OF CHIP CARRIERS AT ONE TIME, PLACING THE CHIP CARRIERS WITH CHIPS ON A PRINTED CIRCUIT BOARD (65) AND THEN RUNNING THE BOARD WITH CHIPS AND CARRIERS ARRANGED IN A THREE DIMENSIONAL ARRAY THROUGH A SINGLE REFLOW OVEN (87) TO COMPLETE A SINGLE REFLOW PROCESS TO PERMANENTLY CONNECT ALL OF THE COMPONENTS. THE APPARATUS INCLUDES A UNIQUE CHIP CARRIER PALLET (23) AND PRINT FIXTURE PEDESTAL (31) THAT WORK IN COMBINATION TO POSITION THE CHIP CARRIERS FOR THE AUTOMATIC DEPOSITION OF SOLDER ON A MULTITUDE OF CARRIERS AT ONCE AND THEN POSITION THEM FOR ADDITION TO THE CIRCUIT BOARD.(FIG 6)