Patent ID: 7230278
Filing Date: 2007-06-12
Classification: G02B,H01L,H01S,H05K

Abstract:
1. An optoelectronic semiconductor device, mountable on and electrically connectable to an electro-optical wiring board, comprising: an optoelectronic semiconductor element to receive a light signal, transmit a light signal or transmit and receive a light signal; a semiconductor integrated circuit electrically connected to the optoelectronic semiconductor element; and a circuit wiring board comprising: a substrate having: first and second sides opposite to each other in the direction of the thickness, the optoelectronic semiconductor element and the semiconductor integrated circuit element being mounted on the first side; a light input/output through-hole, the optoelectronic semiconductor element inputting/outputting a light signal via the light input/output through-hole; and a plurality of electric connection through-holes, the semiconductor integrated circuit element inputting/outputting an electric signal via wiring layers filled in the plurality of electric connection through-holes; and a plurality of electrodes formed on the second side of the substrate, connected to the wiring layers filled in the plurality of electric connection through-holes, and mountable on and electrically connectable to the electro-optical wiring board, the light input/output through-hole being not formed in a stressed area of the circuit wiring board, but formed in a non-stressed area of the circuit wiring board, the stressed area being an area where a stress is larger in value than a mean value of stresses caused in the circuit wiring board by a difference in coefficient of thermal expansion between the circuit wiring board and the electro-optical wiring board when one of the plurality of electrodes on the optoelectronic semiconductor device is mechanically fixed to and electrically connected to the electro-optical wiring board.