Patent ID: 6664637
Filing Date: 2003-12-16
Classification: B23K,H01L,H05K,Y02P

Abstract:
An electrical structure, comprising:a first substrate; a first conductive body mechanically and electrically coupled to the first substrate; a nonsolderable and nonconductive coating material, wherein a portion of a surface of the first conductive body is coated by the nonsolderable and nonconductive coating material such that an uncoated surface of the first conductive body remains, and wherein a portion of a surface of the first substrate is coated by the nonsolderable and nonconductive coating material; p1 a second conductive body mechanically and electrically in direct contact with the first conductive body by surface adhesion between a surface of the second conductive body and the uncoated surface of the first conductive body, wherein a melting point of the second conductive body is less than a melting point of the first conductive body, and wherein the coating material is rigid Lit a temperature that is equal to the melting point of the first conductive body; a second substrate mechanically arid electrically coupled to the second conductive body; and an encapsulating material between the first substrate and the second substrate, wherein the encapsulating material encapsulates the first conductive body and the second conductive body, wherein the encapsulating material is in direct mechanical contact with the second conductive body, and wherein the encapsulating material is in direct mechanical contact with the second substrate.