Patent ID: 7518249

Claim:
A component comprising: a carrier substrate having a coefficient of thermal expansion α p , and a chip mounted on the carrier substrate by a plurality of bumps, wherein: the chip has a first coefficient of thermal expansion α 1 in a first direction x 1 and a first expansion difference, Δα 1 , is equal to the absolute value of α p −α 1 , the chip has a second coefficient of thermal expansion α 2 in a second direction x 2 and a second expansion difference, Δα 2 , is equal to the absolute value of α p −α 2 , with Δα 1 in direction x 1 being greater than Δα 2 in direction x 2 , and the bumps are arranged such that a first distance, Δx 1 , corresponding to a normal projection of a line between centers of terminally situated bumps in the first direction onto an axis running parallel to direction x 1 is less than a second distance Δx 2 corresponding to a normal projection of a line between centers of terminally situated bumps in the second direction onto an axis parallel to direction x 2 , and wherein the carrier substrate comprises a material in which α 1 ≧α p ≧α 2 .