Bridgelux, reportedly backed by Asian chipmaker Taiwan Semiconductor, has raised at least $180m in aggregate after the latest funding round.

Bridgelux, a US-based light-emitting diode technology company reportedly backed by Taiwan Semiconductor, has raised $60.5m.

The latest fundraising was disclosed in an SEC filing, which said Bridgelux is looking to raise $78.6m.

Taiwan Semiconductor is a minority investor with a 4% stake, a Dow Jones VentureWire story in May reported. The latest round was expected to include an investment from an undisclosed investor, the May VentureWire story said.

Last summer, Bridgelux raised $50m and William Watkins, chief executive of…