State-owned Chinese chip maker makes $23 billion bid for Micron By: MarketWatch July 13, 2015 at 20:55 PM EDT China’s Tsinghua Unigroup submits a bid to buy out U.S. memory-chip maker Micron Technology for $23 billion, The Wall Street Journal reports. Read More >> Related Stocks: Hewlett-Packard Intel Corp Macy's Micron Technology Samsung Electronics Ltd