Patent ID: 6515362
Filing Date: 2003-02-04
Classification: H01L

Abstract:
A grid array package comprising:a substrate with a top surface and a bottom surface; an inner array of contact pads formed on the bottom surface with two most adjacent contact pads of the inner array of contact pads separated by a first distance; an outer array of contact pads formed on the bottom surface with two most adjacent contact pads of the outer array of contact pads separated by a second distance; and an intermediate group of contact pads formed on the bottom surface, the contact pads positioned at corners of the intermediate group of contact pads are ground contact pads for grounding the grid array package; wherein the intermediate group of contact pads is formed between the inner array of contact pads and the outer array of contact pads and is separated from the inner array of contact pads by a third distance and from the outer array of contact pads by a fourth distance, the third distance and the fourth distance being greater than the first distance and the second distance.