hsing tuan is president of unipac optoelectronics in hsinchu park.s story is typical of the silicon valley returnees. he studied for his bachelor degree in taiwan but then went on stanford university in california to complete his doctorate. after 12 years working on research and development in california's silicon valley, he went home to taiwan. if i compare taiwan and the u.s., i would say that taiwan is very much like the early days of the west coast in... in the u.s., the so-called gold... gold rush time... you know, era. that is, there are more opportunities here than in the states, i think. and... so many of us who came back here look for challenges, and we certainly found many challenges. narrator: in the 1980s, entrepreneurial returnees started more than 100 small firms, all with the support of the taiwanese government. science parks like hsinchu provided infrastructure and a space for experimentation and innovation. man: we kind of evolved into another technology-oriented stage. the science park is treated as a kind of... you call it the ente