Patent ID: 6729023
Filing Date: 2004-05-04
Classification: H05K,Y10T

Abstract:
A method for making a circuit board assembly comprising the steps of:providing a first member having a first core portion which is contained between a top and a bottom layer; providing a second member having a second core portion which is contained between a top and a bottom layer; providing a first layer and a second layer of a first material; providing an electrically conductive third member; removing a portion of said top and said bottom layer of said first member, thereby exposing at least two portions of said first core portion of said first member; removing a portion of said top and said bottom layer of said second member, thereby exposing at least two portions of said second core portion of said second member; creating a first pre-circuit assembly by attaching the first layer of said first material to a first surface of said third member, attaching the second layer of said first material to a second surface of said third member, attaching said first member to said first layer of said first material, and attaching said second member to said second layer of said first material; creating a first aperture through said first pre-circuit assembly, thereby causing a portion of said first pre-circuit assembly to be contained within said created aperture; selectively removing portions of said first and second core portions, thereby creating at least one void and at least one air-bridge; providing a polymeric material; applying said polymeric material within said at least one void such that said at least one void is under filled, thereby structurally supporting said at least one air-bridge; and placing an electrically conductive solder material within said aperture and isolating said electrically conductive solder material from said electrically conductive third member, thereby forming a circuit board assembly.