Abstract: A passive alignment packaging structure for opto-electrical devices and optic fiber connectors provides a passive alignment packaging structure for opto-electrical devices and optic fiber connectors. The passive alignment packaging is of great benefit to automatic assembly in lowering the manufacturing cost and satisfying the requirement of a precisely aligned optical path. The invention connects the silicon substrate for installing an opto-electrical device to a leadframe by soldering. The surface tension of the melted soldering tin helps self-alignment in the horizontal direction. A guiding pin penetrates through the leadframe and the through hole of a lens support for installing a micro lens set to have vertical alignment. The opto-electrical device, the micro lens set, and the optic fiber connector are thus precisely aligned. The leadframe and the through hole on the lens support have alignment and stress relaxation designs to reduce deformation.

Abstract: A three-dimensional stacked heat spreader assembly is provided which includes an upper heat spreader of generally rectangular shape having a first edge portion extending downwardly; a lower heat spreader of generally rectangular shape having a second edge portion extending upwardly; a cavity formed in-between the upper heat spreader and the lower heat spreader by engaging the first edge portion and the second edge portion together adapted for receiving an electronic device.

Abstract: A passive alignment packaging structure for opto-eletrical devices and optic fiber connectors provides a passive alignment packaging structure for opto-electrical devices and optic fiber connectors. The passive alignment packaging is of great benefit to automatic assembly in lowering the manufacturing cost and satisfying the requirement of a precisely aligned optical path. The invention connects the silicon substrate for installing an opto-electrical device to a leadframe by soldering. The surface tension of the melted soldering tin helps self-alignment in the horizontal direction. A guiding pin penetrates through the leadframe and the through hole of a lens support for installing a micro lens set to have vertical alignment. The opto-electrical device, the micro lens set, and the optic fiber connector are thus precisely aligned. The leadframe and the through hole on the lens support have alignment and stress relaxation designs to reduce deformation.