Patent ID: 7127142
Filing Date: 2006-10-24
Classification: G02B,H05K

Abstract:
1. An optical communication device, comprising: a first substrate having a light-emitting element or a light-receiving element on one side of the first substrate; a second substrate having an electronic circuit to perform operation control of the light-emitting element or the light-receiving element; and a flexible substrate which connects a section between the light-emitting element or the light-receiving element and the electronic circuit while achieving impedance matching, the flexible substrate including a microstrip line having a flexible insulating substrate, a signal line arranged on one side of the insulating substrate, and a grounding film arranged on the other side of the insulating substrate, and the microstrip line serves the impedance matching function, the flexible substrate including a first microstrip line including a flexible insulating substrate, a first signal line arranged on one side of the insulating substrate, and a first grounding film arranged on the other side of the insulating substrate and a second microstrip line including the insulating substrate, a second signal line arranged on the other side of the insulating substrate, and a second grounding film arranged on the one side of the insulating substrate.