Loranger International Corporation manufactures a wide variety of sockets for testing integrated circuits, including BGA, CSP, LGA, QFN, and MLF style sockets. The sockets feature micro-spring or APS contacts, support pitches from 0.35mm to 1.27mm, and can withstand over 50,000 insertions. Loranger also provides dedicated and universal printed circuit boards for burn-in testing with high density socket configurations.