Patent ID: 6497943
Filing Date: 2002-12-24
Classification: B32B,H01L,H05K,Y10T

Abstract:
An electronic structure, comprising:a substrate including an organic dielectric material and having an internal conductive structure within and through the substrate; a stiffener ring adhesively coupled to an outer portion of a first surface of the substrate; a first metal structure, coupled to the first surface of the substrate, and having a surface area A1 and a coefficient of thermal expansion C1; a second metal structure, coupled to a second surface of the substrate, and having a surface area A2 and a coefficient of thermal expansion C2, wherein C2A2 exceeds C1A1, and wherein the internal conductive structure conductively couples the first metal structure to the second metal structure; and a metal pattern, adjacent to the first surface of the substrate, and having a surface area A3 and a coefficient of thermal expansion C3, wherein (C2A2âˆ’C1A1âˆ’C3A3) is less than (C2A2âˆ’C1A1) in magnitude, and wherein the metal pattern is electrically insulated from any other conductive structure on or within the substrate.