High-performance production test contactors for fine-pitch integrated circuit

This paper describes the design of two contactors intended for testing fine-pitch BGA devices, specifically 0.75 mm and 0.5 mm pitches. The design emphasis is on high performance and high-volume production. The devices described provide superior electrical performance while being subjected to the rigors of production test. The paper describes the electrical and mechanical requirements of the contactors and quantifies these requirements. The contactor designs are then described individually. Finally, the design verification tests that ensure conformance to requirements are described.