Taiwan Semiconductor Manufacturing Co. has tapped Kumamoto Prefecture, southwestern Japan, as a possible site for a chip plant it is considering building in the country, sources familiar with the matter said Tuesday.The move comes as the Japanese government, which regards securing a stable supply of semiconductors as important for national security, has been working to attract the world's largest contract chipmaker to set up a factory in the country.TSMC is seeking financial support for building a plant, a government source said, as the construction would require investment of several hundr…READ FULL ARTICLE