Weekly news roundup: AI compute race intensifies as DRAM rivals diverge and chipmakers expand investments

This week's coverage highlights accelerating competition across AI infrastructure, semiconductor manufacturing and advanced memory. Sweden launched the NVIDIA-based Sferical One supercomputer as leaders urged transformational AI adoption. DRAM makers remain divided over 4F-squared scaling, while CXMT reported sharply higher revenue and outlined 2027 growth plans. Panasonic's Taiwan plant suffered a fatality-risking explosion, Musk may reconsider Terafab control, SK Hynix expanded its AI investment portfolio, and MediaTek hired former Intel packaging chief Navid Shahriari.