IBM z15: Physical design improvements to significantly increase content in the same technology. - Christopher J. Berry; David Wolpert 001; Brian Bell 001; Adam Jatkowski; Jesse Surprise; Gerald Strevig; John Isakson; Ofer Geva; Brian Deskin; Mark Cichanowski; Giora Biran; Dina Hamid; et al. (IBM J. Res. Dev., 2020)