Patent ID: 7101090

Claim:
An optoelectronic subassembly for use in a fiber optic communications transceiver which is adapted for being mechanically and optically connected to an optical ferrule supporting an array of optical communication fibers, said optoelectronic subassembly comprising: a) a planar substrate including an array of photoactive components mounted on said planar substrate and a set of apertures in said planar substrate which are aligned with said array of photoactive components, and wherein said planar substrate comprises a silicon substrate and said set of apertures are fabricated using photolithography techniques; b) a set of guide pins having proximal and distal ends extending through said set of apertures in said planar substrate; c) a support block having a set of support passages in which the distal ends of said set of guide pins are cemented and having a support face at right angles to said set of support passages on which said planar substrate is mounted; d) one or more alignment marks deposited on said planar substrate using photolithography techniques; e) an optoelectronic device containing said array of photoactive components positioned and secured on said planar substrate with reference to said one or more alignment marks; f) a window section etched in said planar substrate using photolithography techniques; and g) a transparent film layer deposited on said planar substrate over said window section on which said one or more alignment marks are deposited.