Patent ID: 6767140
Filing Date: 2004-07-27
Classification: G02B,H01L,H05K

Abstract:
An optical sub-assembly (OSA) suitable for optical interconnection with optical fibers and electrical interconnection with a chip sub-assembly (CSA), the OSA comprising;a ceramic block having a first face and a second face, the ceramic block being formed using one of low temperature co-fired ceramic (LTCC) and high temperature co-fired ceramic (HTCC); at least one photonic device formed on a first face of the ceramic block; at least one signal connection that passes through internal portions of the ceramic block, each signal connection being suitable for electrically connecting a photonic device to a chip sub-assembly (CSA); at least one ground; and at least one ground connection that passes through internal portions of the LTCC block and electrically connects a photonic device to an associated ground of the at least one ground.