Demountable Optical Connector Coupling for PIC Alignment

The patent applies preliminary action by performing optical fiber attachment at the wafer level before dicing the PICs into individual devices. This allows multiple fibers to be attached simultaneously to multiple PICs on the wafer using parallel processing, dramatically reducing production time. The passive alignment features are pre-formed on the wafer, enabling subsequent rapid fiber attachment without time-consuming active alignment procedures for each individual device.

The patent replaces the active mechanical alignment system with a passive alignment system. Instead of using machinery to actively adjust fiber positions to achieve sub-micrometer alignment, the invention uses precisely fabricated passive alignment features (such as alignment marks or mechanical interfaces) that automatically guide the fibers into correct positions. This substitution eliminates the need for time-consuming active alignment machinery operations while maintaining high alignment precision.

The patent applies segmentation by organizing optical fibers in groups corresponding to specific regions or types of PICs on the wafer. Fibers are routed and managed in modular sections rather than as a single tangled mass, making them easier to handle during dicing and subsequent packaging operations. This segmented organization allows different fiber groups to be independently managed and routed to different device types.

The patent introduces intermediary structures such as temporary holding fixtures, routing guides, or protective encapsulation materials that facilitate fiber management during the dicing process. These intermediaries hold the fibers in organized positions, prevent tangling, and protect the fiber-PIC connections during mechanical processing. After dicing, the intermediaries can be removed or retained as part of the final packaging structure.