US Patent 10295749 Optical interconnect attach to photonic device with partitioning adhesive function

A photonic assembly includes an optical die including a suspended membrane structure arranged thereon. A cavity is arranged beneath the suspended membrane structure. An optical interconnect structure is arranged on the optical die. The photonic assembly also includes an optical adhesive arranged on the optical die in contact with the optical interconnect structure. The optical adhesive is arranged beneath the suspended membrane structure to at least partially fill the cavity beneath the suspended membrane structure. The photonic assembly also includes a structural adhesive arranged on the optical die adjacent to the optical adhesive.