US Patent 11525956 Semiconductor devices having electro-optical substrates

Memory devices having electro-optical substrates are described herein. In one embodiment, a memory device includes a plurality of memories carried by an electro-optical substrate. The electro-optical substrate can include a circuit board and an optical routing layer on the circuit board. The memories can be (a) electrically coupled to the circuit board and (b) optically coupled to the optical routing layer. In some embodiments, the optical routing layer is a polymer waveguide.