North Carolina State University semiconductor material spinout HexaTech will seek $3.5m from its latest round to bring its overall funding to roughly $12m.

HexaTech, a US-based semiconductor material spinout from North Carolina State University, raised $2.7m of a targeted $3.5m round from undisclosed investors on Thursday, according to a securities filing.

Founded in 2005, HexaTech supplies crystal aluminium nitride substrates that can be used as wide-bandgap semiconductors for purposes such as biological threat detectors, electricity conversion switches and radio frequency parts for satellite communications.

Aluminium nitride offers both thermal conductivity and electrical insulation, and the material has also been known to feature within…