The 23rd International Workshop on Post-Binary ULSI Systems (ULSIWS) will be held in conjunction with the IEEE 44th International Symposium on Multiple-Valued Logic (ISMVL2014) on May 18, 2014 at the University of Bremen in Bremen, Germany. You are invited to submit an original paper, survey or tutorial paper on any subject in the area of new devices for ULSI systems, high-performance circuits and design, and new LSI architecture. Proposals for special sessions concerning the above topics are also welcome.