Waferboard structure and method of fabricating

Optical waveguides – With disengagable mechanical connector – Optical fiber to a nonfiber optical device connector

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385 88, G02B 642

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active

051827824

ABSTRACT:
A waferboard assembly incorporates mechanical registration features into a substrate platform to facilitate the passive alignment of lasers integrated on a chip to fibers in integral contact with the substrate. The waferboard includes two front pedestal structures and one side pedestal structure, and two vertical post structures within a mounting region defined by the pedestal structures. The laser chip is mounted on the vertical post structures, and placed in concurrent abutting contact with the pedestal structures. The waferboard is fabricated by etching the substrate to form the front and side pedestal structures, and etching the substrate to define the grooves. In order to form the post structures, a polyimide material is deposited on the substrate using an appropriate mask.

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Henry et al. "Glass waveguide on silicon for Hybrid Optical Packaging." J. of Light. Tech. vol. 7 No. 10 paper 1530-1539 (Oct. 1989).
Jackson et al., "Optical Fiber Coupling Approaches for Multi-Channel Laser and Detector Arrays," SPIE vol. 994 Optoelectronic Materials, Devices, Pack., and Interconn. II, pp. 40-47 (1988).
Hillerich and Geyer, "Self-Aligned Flat-pack Fibre-Photodiode Coupling," Elect. Letters, vol. 24, No. 15, paper 918-919 (1988).

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