Abstract:
An integrated circuit chip package has a substrate having first and second mutually parallel sides and a preselected thickness and a space on the first side for the mounting thereon of an electronic component having a body with a flat surface. The substrate further includes a plurality of elongated thermal conductive members, each having a head portion adapted to be in contact with the flat surface of the electronic component. The members further have elongated body portions of a preselected length greater than the thickness of the substrate. The thermal conductive members extend through preselected holes in the substrate whereby heat may be conducted from the flat surface of the component through the thermal conductive member to the other side of the substrate.
Abstract:
An apparatus comprising a multi-layer substrate including a plurality of layers of insulative material, at least one well formed in at least one of the layers, the well extending from an outer surface of the multi-layer substrate to an inner surface of the multi-layer substrate, and an electrically conductive component formed within the well on the inner surface of the multi-layer substrate; and a device having at least one electrically conductive lead or wire extending into the well and being in direct physical contact with the electrically conductive component formed on the inner surface of the multi-layer substrate. Also, a method of manufacturing an apparatus comprising the steps of forming a multi-layer substrate including a plurality of layers of insulative material, at least one well formed in at least one of the layers, the well extending from an outer surface of the multi-layer substrate to an inner surface of the multi-layer substrate, and an electrically conductive component formed within the well on the inner surface of the multi-layer substrate; and extending at least one electrically conductive lead or wire from a device into the well such that the lead or wire is in direct physical contact with the electrically conductive component formed on the inner surface of the multi-layer substrate.
Abstract:
An add-on card which has a flat surface on the top side on which a plastic quad flat pack integrated circuit packaged integrated circuit can be soldered upon. The other side of the add-on card has downwardly protruding pins that can plug into a pin grid array integrated circuit socket. A method of manufacturing a add-on card whereby bonding pads are disposed on one side of the add-on card and pins are disposed on the other side of the add-on card.
Abstract:
When an external connection I/O pin which is formed on a multilayer ceramic circuit board is broken off together with a part of a ceramic substrate, an electrically conductive adhesive is filled in the area where the I/O pin broke and was removed, and together with standing a new pin in this place and connecting it electrically, the new pin is bridged and secured to the surrounding I/O pins using a fixation plate. In so doing, it is possible to restore the broken I/O pin to have the same electrical and mechanical characteristics as before.
Abstract:
Disclosed is a method of fabricating an electronic interconnection structure comprising at least one solder column Joined to an I/O pad of a substrate, the method including the steps of:(a) applying a quantity of solder to the solder column or I/O pad;(b) aligning the solder column with the I/O pad such that there is a quantity of solder between them;(c) heating the structure to cause the solder to melt and bond the column to the I/O pad; and(d) planarizing the solder column to a predetermined height.Also disclosed is the electronic interconnection structure made by the method according to the invention.
Abstract:
A solder spacer device and method for use in positioning a grid pin array having a plurality of pins over a circuit board having a plurality of pin holes respectively receiving the pins. The spacer is pulled through a central opening in the circuit board after the pins are soldered in the holes to the circuit board. The spacer has a cylindrical body which is positioned in the central opening and has a plurality of radial legs having respective flexure portions for separating the pin grid array from the circuit board during soldering and for folding into the central opening during extraction through the central opening after the soldering is finished.
Abstract:
A solder preform containing a series of islands that are joined together in a matrix by bridging bands. Each band has a reduced cross-sectional area in its midregion. In one form of this invention, at least some of the islands contain pin receiving holes formed therein and solder tabs that are arranged to frictionally engage a pin that is passed into the hole to prevent the preform from being misaligned or dislodged from the pins and which at the time of bonding, prewets the pins to promote flowing of solder to the pins from the islands to form a superior solder joint.
Abstract:
Disclosed herein is a mechanical translator for use in replacing one semiconductor chip with another. A translator allows a first semiconductor chip to be replaced with second semiconductor chip. The translator includes a module having a first surface with a plurality of pins in a first pattern that is compatible with the contact pins of the first semiconductor chip and having a plurality of electrically conductive pads in a second pattern that is compatible with the contact pins of the second semiconductor. The module includes translating semiconductor logic for translating the electrical signals designed to be supplied to and received from the first second semiconductor chip to be compatible with the electronic signals supplied to and received from the second semiconductor chip. The electrical pads are appropriately connected to the translating logic. Also included is an adapter having pattern of pins and sockets compatible with the pattern of pins and sockets of the replacing semiconductor chip. The adapter is connectable in piggy back fashion with the module.
Abstract:
Cast solder preforms, rings or donuts suitable for use in a reflow solder process to interconnect through-hole pins in an electrical connector to plated through holes in a printed circuit board are disclosed. A plurality of solder donuts are cast into an array so that the plurality of donuts are initially formed as a single unit. The donuts can be either cast onto pins in a connector or cast onto a separate carrier for subsequent insertion onto the pins in a connector.
Abstract:
An adaptor (14) for adding electronic components to a computer has been disclosed. The adaptor (14) includes a flexible printed circuit strip (34) having holes (38) in a first end section (36) for receiving a PGA package (16) and conductive pads (66) at a second end section (46) arranged in a predetermined pattern and conductive traces connected to and extending between the holes (38) and pads (66). The adaptor further includes a preform (80) having castellations (84) on each edge. The second end section (46) is wrapped around the preform (80) so that the conductive pads (66) are in registration with the castellations (84).