Patent ID: 11888286
Assignee: MARVELL ASIA PTE LTD
Field: Optics (Instruments)
Classification: CPC H | IPC H

Claim 11:
12. A laser chip for flip-chip bonding to a silicon photonics chip comprising a waveguide, the laser chip comprising:
an active region disposed in the laser chip along a plane parallel to the waveguide in the silicon photonics chip; and
a first pair of stoppers formed on the laser chip to mate with a second pair of stoppers formed on the silicon photonics chip when the laser chip is bonded to a bonding site on the silicon photonics chip, the first and second pairs of stoppers extending along an axis perpendicular to the plane, at least one of the first pair of stoppers and the second pair of stoppers being configured to align the active region away from the waveguide towards the bonding site on the silicon photonics chip; and
wherein the active region extends between a front facet and a rear facet that are disposed along the plane parallel to the waveguide with the front facet facing the waveguide, the active region being disposed between an n-type doped region and a p-type doped region with the p-type doped region being narrower than the n-type doped region and being bonded to the bonding site on the silicon photonics chip, and the first pair of stoppers extending from the n-type doped region parallel to the p-type doped region.