Young Jun Yoon, Byung Deuk Jeon, Byung Soo Kim, Ki Up Kim, Tae Yong Lee, Nohhyup Kwak, Woo-Yeol Shin, Na Yeon Kim, Yunseok Hong, Kyeong Pil Kang, Dong Yoon Ka, Seong Ju Lee, Yong Sun Kim, Young Kyu Noh, Jaehoon Kim, Dong Keum Kang, Ho Uk Song, Hyeon Gon Kim, Jonghoon Oh: 18.4 An 1.1V 68.2GB/s 8Gb Wide-IO2 DRAM with non-contact microbump I/O test scheme. ISSCC 2016: 320-322