This has been an area of leadership at UW-Madison for over 40 years (see http://research.cs.wisc.edu/arch/uwarch). Several affiliate faculty members from the Computer Science department also work in this area. One of the major ongoing thrusts is on neuromorphic computing, where the goal is to design novel low-power architecture inspired by functioning of the human brain. Another major thrust involves developing novel computing paradigms that exploit recent advances in design and availability of non-volatile memories (such as STT RAM).
Millimeter waves are ideal for communication and sensing. One of the ongoing research thrusts involves developing protocols for multi-gigabit wireless communication in both indoor and outdoor settings. We are developing an open testbed for millimeter communication and sensing. The other thrusts involve addressing security and privacy challenges in Internet of Things (IoT) and mobile health applications.
Research in this area is focused on developing computer-aided design tools for modern integrated circuits (ICs). One of the major thrusts is on developing design tools for placement and routing of large designs for modern day ICs and for post-fabrication debug and validation of ICs. Another major thrust involves development new design tools for reconfigurable and in-situ computing enabled by non-volatile memories.