Sondrel (Holdings) PLC's (LON:SND) founder and CEO Graham Curren speaks to Proactive following the company's listing on AIM. Sondrel is a semiconductor designer and supplier that produces customised, ultra-complex ASIC chip solutions.Curren explains that he sees the listing as the best way to boost the company's annual growth beyond the "nearly 20%" reported since he founded Sondrel in 2002. He suggests that Sondrel is "one of half-a-dozen" companies in the world with the capability to design bespoke semiconductors.