Feb 5 : Chipmaker Microchip Technology forecast fourth-quarter profit below Wall Street estimates on Thursday, raising concerns about the impact of a memory-supply crunch on the wider semiconductor industry. Shares of the Chandler, Arizona-based company fell more than 5 per cent in extended trading. A global shortage of memory supply has hammered the personal electronics industry, forcing smartphone makers and personal computer providers to cut back on orders as they struggle to ship finished