| http://www.w3.org/ns/prov#value | - In the conventional BGA package 100 shown in FIG. 3, an angle ??1 is close to 00 Here, the angle ??1 is an angle given by a segment connecting an end 101??? of the package body 101 and the solder balls 103-2, and another segment connecting an end 106??? of the substrate 106 and the solder balls 103-2.
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