Stay informed with free updatesSimply sign up to the Technology sector myFT Digest -- delivered directly to your inbox.US memory chip stocks have lost almost $100bn in market value this week, hit by new Google research that pointed to an easing of the AI-driven hardware shortage that had sent chipmakers’ shares to record highs. Shares in US memory maker Micron have shed more than $70bn in market capitalisation since last Friday’s close, down 15 per cent, amid a broad sell-off on Wall Street.Sand...