Patent ID: 7692307
Filing Date: 2010-04-06
Classification: H01L,H05K,Y10T

Abstract:
1. A compliant structure for an electronic device, the compliant structure comprising: a substrate composed of a first material; and a die coupled to the substrate via a plurality of solder joints, wherein: the die comprises a neutral point; the substrate comprises a compliant zone that contains a second material; a first solder joint of the plurality of solder joints is located at a first distance from the neutral point; a distance from the neutral point to each one of the solder joints in the plurality of solder joints is less than or equal to the first distance, such that the first distance is a largest distance from the neutral point; at least a portion of the compliant zone is located at the largest distance from the neutral point; and the compliant zone forms a ring that extends completely around a perimeter of the substrate but does not extend vertically all the way through the substrate.