One of the largest challenges facing tech startup companies is finding the capital necessary to fine-tune their technology and ultimately launch and scale their company. Thanks to support and encouragement from the University of Notre Dame and the IDEA Center at Notre Dame, a growing number of local startups are tapping into an important funding source that has brought more than $7.5 million to South Bend-Elkhart startups over the past year and a half: the federal government’s Small Business Innovation Research (SBIR) and Small Business Technology Transfer (STTR) programs.