Patent ID: 7260285
Filing Date: 2007-08-21
Classification: G02B,H05K

Abstract:
1. An optical module with a flexible substrate, comprising: an optical module in which optical elements are mounted and which includes a stem and a plurality of leads that run to an outside of said stem; and a flexible substrate that is electrically connected to said optical module, said flexible substrate having an opening and said stem having an electrically conductive protrusion outside of said stem, separate from said plurality of leads and electrically connected to said stem, that extends through said opening; said flexible substrate having a first wiring layer and a second wiring layer on respective opposite sides of a resin layer; said first wiring layer being on one of said sides of said resin layer and having a plurality of wiring patterns that are electrically connected to said plurality of leads and a dummy wiring pattern that is electrically isolated from said plurality of leads and electrically connected to said protrusion; and said second wiring layer being on the opposite one of said sides of said resin layer and electrically insulated from said wiring patterns and electrically connected to said protrusion and to said dummy wiring pattern.