Tsinghua Unigroup takes stake in Lattice Semiconductor By: MarketMinute.com Stock News April 13, 2016 at 18:27 PM EDT Tsinghua Unigroup has acquired a 6% stake in Lattice Semiconductor Corp. (Nasdaq: LSCC). The stock price gained 99 cents to close at $6.36. Related Stocks: Lattice Semicond