Developing flexible circuitry is an essential component of flexible hybrid electronics systems. Manufacturers are looking for smaller, more densely packed circuits or their applications, and this is proving to be an ideal opportunity for MicroConnex.   A specialist in commercial flexible circuits fabrication and laser micromachining services, Snoqualmie, WA-based MicroConnex develops high-density flex interconnects (HDI) solutions for the electronic packaging market. The company uses its proprietary photolithographic patterning systems to produce custom flexible circuitry. Key markets include medical ultrasound systems, semiconductor and defense and aerospace industries.   Steve Leith, MicroConnex’s VP engineering and technology, said that MicroConnex was formed as an R&D company called MicroSound Systems in the mid-1990s.   “The initial business concept was to develop next generation, complex medical ultrasound transducers and this early work were partia