Airtight packaging structure of photoelectric conversion device

Abstract

The invention discloses a photoelectric conversion device airtight packaging structure, and the structure comprises an enclosure frame which is a bearing body of the airtight packaging structure, the side edge of the enclosure frame is provided with a hole, and the interior of the enclosure frame is provided with an optical fiber assembly assembling channel; the bottom substrate is an electric signal output substrate of the photoelectric conversion device, an electric signal transmission channel is arranged in the bottom substrate, and the bottom substrate is arranged on the bottom side of the enclosure frame and completes first-stage airtight welding of the device through eutectic welding; the tail pipe is arranged at the tail part of the enclosure frame, the tail pipe and the enclosure frame are of an integrated structure, and the tail pipe is an optical fiber assembly channel and a light input port; the cover plate is matched with an opening in the top side of the enclosure frame, the cover plate and the enclosure frame form a cavity, a continuous sealing welding seam is formed through parallel sealing welding, and third-stage airtight packaging is formed; and the optical fiber assembly is horizontally coupled with the optical detector in the photoelectric conversion device in the cavity formed by the tail tube and the enclosure frame, and the optical fiber assembly is welded and sealed with the tail tube. And the reliability risk of long-term durability of glue in the existing packaging technology is solved.

Images