Investing.com - Wall Street cannot get enough of Micron, the high-flying chipmaker. Credit Suisse (SIX:CSGN) is the latest firm to raise its stock-price target for Micron, saying the company will report better-than-expected earnings this year.The Wall Street firm raised its 12-month price target from $60 to $70 a share and also reiterated its outperform rating.Credit Suisse said rising prices for memory chips and an improving cost structure will drive Micron's earnings.Three other firms upped their stock price-targets last week. Nomura Instinet's went from $55 to $100 a share.Micron stock is already up more than 30% this year.