The ESP8266 is a chip that turned a lot of heads recently, stuffing a WiFi radio, TCP/IP stack, and all the required bits to get a microcontroller on the Internet into a tiny, $5 module.

a new 3D chip integrating a commercial DRAM chip on top of a logic IC. The new 3D stack resembles as close as possible to future commercial chips. It consists of a 25µm thick logic die on top of which ...