Semiconductor startup Positron has secured $230 million in Series B funding, TechCrunch has exclusively learned. The outfit plans to use the capital to speed up deployment of its high-speed memory chips, a critical component for the chips used for AI workloads, sources familiar with the matter told TechCrunch. Investors in the round include Qatar Investment Authority (QIA), the country’s sovereign wealth fund, which has been increasingly focused on building out AI infrastructure, the sources sai...