Samsung is planning to build a $17 billion semiconductor factory outside of Austin, Texas, amid a global shortage of chips used in phones, cars and other electronic devices. Texas Gov. Greg Abbott has scheduled a press conference Tuesday to make an economic announcement; he is expected to unveil the Samsung investment at that time, according to a person familiar with the plan who wasn’t authorized to speak about it publicly ahead of the official announcement. News of the Samsung announcement was reported earlier by the South Korean news agency Yonhap. The chip shortage has emerged as both a business obstacle and a serious national-security concern. Short supplies of semiconductors kicked off by COVID-era shutdowns have hampered production of new vehicles and electronic devices for more than a year. New questions of economic and national security are also at stake, since many U.S. companies are dependent on chips produced overseas, particularly …