Method of manufacturing and transferring metallic droplets
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United States of America Patent
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Aug 10, 1999
Grant Date -
N/A
app pub date -
Jul 25, 1997
filing date -
Jul 26, 1996
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of manufacturing metallic droplets (9), comprising the following steps: (a) providing a substrate (1) which is substantially transparent to radiation of wavelength .lambda., one face (1a) of the substrate (1) being provided with a metallic layer (3) which is partitioned into an array of lands (5); (b) directing a laser beam (7) of wavelength .lambda. through the substrate (1) onto a land (5), thereby causing rapid melting of the land (5) and its detachment from the substrate (1) in the form of a molten droplet (9). In a preferential embodiment of the method, the molten droplet (9) is 'shot' onto a target substrate (21) before solidifying.
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