Inventors:
Brett J. Campbell - Hatfield PA, US
Patrick J. Carberry - Laury's Station PA, US
Jason P. Goodelle - Allentown PA, US
Michael Francis Quinn - Allentown PA, US
Assignee:
LSI Corporation - Milpitas CA
International Classification:
H01L 21/60
US Classification:
438111, 438123, 438466, 438617, 257E23025
Abstract:
A method of making a packaged electrical device comprises the steps of (a) connecting one end of a wire to a first point (e. g. , a first electrical node) in the package, and (b) connecting the other end of the wire to a second point (e. g. , a second electrical node) in the package, characterized by (c) causing energy from an external source to heat at least one predetermined segment of the wire to a temperature that is below its melting point (MP) but not below its recrystallization temperature (RCT), and (d) cooling the heated segment to a temperature below its RCT [e. g. , to room temperature (RT)], thereby to increase the stiffness modulus of the segment. In one embodiment, the external source is a laser whose optical output is absorbed by the segment. In another embodiment, the heated segment is rapidly cooled (i. e. , quenched) to RT.