Patent ID: 9397757
Filing Date: 2016-07-19
CPC Classification: G02B,H01L,H04B,H05K,Y02P

Claim Text:
1. A semiconductor package comprising: a package substrate including a first main optical transceiver and a second main optical transceiver; a first semiconductor substrate mounted on the package substrate, the first semiconductor substrate having a first subsidiary optical transceiver aligned with the first main optical transceiver; an interconnection layer disposed on a surface of the first semiconductor substrate, the interconnection layer having an internal interconnection structure and an interlayer insulation structure; and a second semiconductor substrate stacked on the first semiconductor substrate, the second semiconductor substrate having a second subsidiary optical transceiver aligned with the second main optical transceiver, wherein the first and second semiconductor substrates are laterally offset to have a step structure such that the second subsidiary optical transceiver receives an optical signal outputted from the second main optical transceiver using an infrared (IR) ray that propagates through the first semiconductor substrate, wherein the first semiconductor substrate includes a silicon substrate and an integrated circuit portion disposed on the silicon substrate, wherein the interconnection layer includes first and second windows vertically overlapping with the first and second subsidiary optical transceivers, respectively, and wherein the first and second windows open respective portions of the first semiconductor substrate.