Corner structures for an optical fiber groove

A structure comprising:

• a photonics chip including a substrate and an interconnect structure over the substrate, the photonics chip having a first exterior corner, a second exterior corner, and a side edge extending from the first exterior corner to the second exterior corner, the substrate including a groove positioned along the side edge between the first exterior corner and the second exterior corner, the groove arranged to intersect the side edge at a first groove corner, the interconnect structure including a first plurality of metal structures adjacent to the first groove corner, and the first plurality of metal structures extending diagonally in the interconnect structure relative to the side edge,
• wherein the interconnect structure includes a plurality of metallization levels, the first plurality of metal structures include a plurality of plates and a plurality of vias positioned in the plurality of metallization levels, and the plurality of vias connect the plurality of plates.