Bridgelux, a US-based light-emitting diode technology company, is reportedly close to raising $80m from a strategic investor.
William Watkins, chief executive of Bridgelux, told news provider VentureWire: "We are very close. We’re signing papers" with an undisclosed strategic investor with two new financial backers.
Taiwan Semiconductor is a minority investor with a 4% stake, the news service reported.
Last summer, Bridgelux raised $50m and Watkins told VentureWire the pre-money valuation of the last round was $250m and that the new round had a higher valuation.
He added that Bridgelux had raised $120m in total before the new round from venture capital firms Chrysalix Energy Venture Capital, DCM, El Dorado Ventures, Harris & Harris Group, VantagePoint Venture Partners and VentureTech Alliance.