"An interposer is an electrical interface routing between one socket or connection to another. The purpose of an interposer is to spread a connection to a wider pitch or to reroute a connection to a different connection. Interposer comes from the Latin word "interpōnere", meaning "to put up between"

So, POET interfaces to already known and proven products made by tier 1 companies. POET doesn't invent the entire product. Now that they have done all the hard work, POET basically matches its input/outputs to customers' products and they go through qualification testing. I don't know if people realize how close POET is? That is why all this related hiring is happening because the real juicy stuff we've been waiting for is very near now --- and real.