China's top chipmakers, including SMIC and Hua Hong Semiconductor, are aiming to boost their output of advanced semiconductors to meet burgeoning artificial intelligence demand, Nikkei said on Wednesday citing sources. Semiconductor Manufacturing International Co (SMIC), Hua Hong and several Huawei-linked chipmakers are expanding or aiming to start production of chips with the most advanced technology available, including on the 7-nanometer (nm) or even 5-nm performance level, Nikkei said.