SINGLE-MELT ENHANCED RELIABILITY SOLDER ELEMENT INTERCONNECT

A method of joining first and second substrates through a solder element interconnect, the method including the steps of forming solder elements, such as solder balls, in a first array on a first substrate, forming pads of solder paste in a second array on a second substrate wherein the first and se...

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Hauptverfasser: JACKSON RAYMOND A, FAROOQ MUKTA G
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creator JACKSON RAYMOND A
FAROOQ MUKTA G
description A method of joining first and second substrates through a solder element interconnect, the method including the steps of forming solder elements, such as solder balls, in a first array on a first substrate, forming pads of solder paste in a second array on a second substrate wherein the first and second arrays are mirror images of one another, establishing a standoff element on one of the first or second substrates, assembling the first and second substrates such that each of the solder elements on the first substrate are embedded in each of the solder paste pads and the standoff element is interposed between the first and second substrates, heating the first and second substrates at a preferred temperature to cause melting of the solder elements and the solder pads into single solder elements, wherein the standoff controls the separation distance between the first and second substrates.
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subjects BASIC ELECTRIC ELEMENTS
CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
PRINTED CIRCUITS
SEMICONDUCTOR DEVICES
title SINGLE-MELT ENHANCED RELIABILITY SOLDER ELEMENT INTERCONNECT
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