Article comprising solder with improved mechanical properties
AssigneeAT&T Laboratories
InventorsSungho Jin, Mark T. McCormack
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Abstract
New solder compositions which can have improved mechanical properties are disclosed. In a preferred embodiment, the solder comprises a matrix material and magnetically dispersed particles. A desirable dispersion of the magnetic particles in the matrix material, is accomplished by applying a magnetic field to the molten matrix material containing magnetic particles and solidifying it in the presence of the magnetic field. The particle-dispersed microstructures improve the mechanical properties of the solder composition. The improved solder composition can be made into a powder to be used in solder paste, cream or reshaped while substantially retaining the improved mechanical properties.
Claims12
An article comprising a solder composition comprising a solder matrix material and magnetic particles, wherein said particles have a magnetic field-induced substantially ordered distribution either in a columnar pattern oriented substantially in the direction of a magnetic field which was or is applied to said solder composition or in a three dimensional chain network in at least a portion of the solder matrix material and said particles represent a volume fraction of said solder composition in the range of 0.5-10%.
Dependencies are inferred from the claim text.