Vishay UltraSource | 763 followers on LinkedIn. A World of Solutions | With over 20 years of experience, Vishay UltraSource is the logical choice as your supplier for build to print thin film circuits and interconnects serving customers in avionics, military, fiber optic, wireless, medical, industrial, and semiconductor markets. Vishay UltraSource understands the importance of moving quickly through the prototype phase of a project and offers the industry's first rapid thin film prototyping services called UltraFAST. With UltraFAST, Vishay UltraSource can provide circuits to you from CAD to shipping in as few as 4 working days.