Metal fusion bonding – Process – With measuring – testing – indicating – inspecting – or...
Reexamination Certificate
2006-09-28
2010-11-02
Ward, Jessica L (Department: 1793)
Metal fusion bonding
Process
With measuring, testing, indicating, inspecting, or...
Reexamination Certificate
active
07823762
ABSTRACT:
A solder ball is loaded on a bump having a small height (FIG.5(B)) and the height of the bump is intensified by melting the solder ball by heating with laser (FIG.5(C)). Thus, the heights of the bumps are adjusted within a requested allowable range. Because the bump is not removed by heating when the height of the low bump is intensified, the printed wiring board is not subjected to local heat history thereby intensifying reliability of the bump of a printed wiring board.
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Akai Sho
Iriyama Masanori
Kawamura Yoichiro
Tanno Katsuhiko
Ha Steven
IBIDEN Co., Ltd.
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
Ward Jessica L
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