作者: Hajime Saiki , Kozo Yamasaki
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摘要: A connecting board is provided for disposition between a base plate such as LGA and mounting printed circuit board. The has substrate having plurality of through holes. Each hole extends opposite first second surfaces the includes portions continuous oval shape. An easily deformable soft metal body mounted in each way to have protruded protruding from substrate. are different height. connected at heights set depending upon materials coefficients thermal expansion plate, By making other, distance desiredly.