Patent ID: 6612025
Filing Date: 2003-09-02
Classification: H05K,Y10T

Abstract:
A method for creating a connection within a multi-layer circuit board assembly, said multi-layer circuit board assembly including a first electrically conductive member, a second electrically conductive member, and a core member which is disposed between said first and second electrically conductive members, said method comprising the steps of:selectively removing a first portion of said first electrically conductive member effective to create an aperture within said circuit board assembly which extends to said second electrically conductive member, wherein said removal of said first portion creates a second portion which extends within said aperture; selectively removing a portion of said second electrically conductive member effective to form a surface pattern having additional exposed surface area within said aperture; providing an amount of solder-mask material having a polar molecular composition; disposing said amount of solder-mask material within said aperture, effective to cover only said core member which is exposed within said aperture; and inserting solder within said aperture, effective to cause said solder material to bond with said second portion, said first electrically conductive member, and with said surface pattern of said electrically conductive member, thereby retaining said solder within said aperture.