Patent ID: 6787812
Filing Date: 2004-09-07
Classification: G02B

Abstract:
A method of making an active optical device for coupling to an external light guide, comprising the steps of:providing a substrate with a light path therethrough and having a front face and a rear face; said component having a face presenting an array of contacts, said components including at least one actives optical component selected from the group consisting of a light emitter and light receiver; forming a plurality of arrays of contacts on the rear face of said transparent substrate at precisely defined locations corresponding to an intended location of the contacts of each component; forming arrays of positioning pads on said rear face of said transparent substrate at precisely defined locations relative to said plurality of arrays of contacts; providing a guide frame for locating the external light guide and having guide frame pads precisely matching said arrays of positioning pads; attaching said guide frame to said rear face of said substrate in a precise location determined by said positioning pads by soldering said guide frame pads to said arrays of positioning pads and floating said guide frame into place on molten solder; and flip-chip bonding said components onto said substrate in precisely predetermined locations determined by said arrays of contacts by floating said components into said precisely determined locations on molten solder; and wherein said at least one optical component is oriented so that it can be optically coupled through said substrate to the external light guide.