Chemistry: electrical and wave energy – Processes and products – Processes of treating materials by wave energy
Patent
1996-03-21
1998-09-01
Gorgos, Kathryn L.
Chemistry: electrical and wave energy
Processes and products
Processes of treating materials by wave energy
29840, 22818022, H05K 334
Patent
active
058013504
ABSTRACT:
A surface reformation method of a high polymer material irradiates an excimer-laser beam to only a predetermined area in which electronic parts and the like are temporarily immobilized by a liquid on a substrate which has a high polymer layer on the surface. The wettability of the liquid for temporary immobilization only with respect to the predetermined area is improved. After the electronic parts are temporarily immobilized on the substrate by using the method, the electronic parts can be durably soldered by fluxless reflow soldering.
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Iwata Yasuhiro
Katayama Kaoru
Kazui Shinichi
Sasaki Hideaki
Shibuya Tsutomu
Gorgos Kathryn L.
Hitachi , Ltd.
Noguerola Alex
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