Patent ID: 6511347
Filing Date: 2003-01-28
Classification: H01L,H05K

Abstract:
A method for connecting a solder site on a first electronic component to an internal plane in a second electronic component, where the repair of an open internal net in the second electronic component or an engineering change is required, comprising the steps of:supplying the first electronic component containing a plurality of solder sites for solder connection to a second electronic component; supplying the second electronic component having a surface and a plurality of corresponding pads on the surface for direct attachment to the solder sites of the first electronic component, with at least one pad initially not having a via connected to the internal plane, such that the pad is isolated from the internal plane of the second electronic component; subsequently forming an opening in the second electronic component from the surface of the second electronic component to the internal plane desired to be connected to a solder site of the first electronic component, the opening being proximate the isolated pad to be attached to the internal plane of the second electronic component; attaching an electrical connector from the internal plane to the isolated pad through the formed opening in the surface of the second electronic component to repair an open internal net in the second electronic component or to create a required engineering change, the connector having a higher melting point than the solder to be used to make the solder connection between the first and second electronic components; and subsequently using a solder for attaching the solder sites of the first electronic component to the corresponding pads of the second electronic component.