Patent ID: 8093710

Claim:
A header assembly for use in an optoelectronic package, comprising: a header having an interior surface and an exterior surface formed opposite to the interior surface, the header including: a first lead assembly having: a plurality of first vias each defined through the header so as to extend from the interior surface to the exterior surface, each of the first vias having a first diameter, each first via being centered on a first pin circle on the interior surface of the header, the first pin circle having a first diameter; a plurality of first leads, each first lead received by a respective one of the first vias; and a second lead assembly having: a plurality of second vias each defined through the header so as to extend from the interior surface to the exterior surface, each of the second vias having a second diameter, each second via being centered on a second pin circle on the interior surface of the header, the second pin circle having a second diameter that is greater than the first diameter of the first pin circle; and a plurality of second leads, each second lead received by a respective one of the second vias.