Electroformed SOCKET Test Spring Processing & Application Fields

Electroformed SOCKET test springs are integrally fabricated from high-purity nickel-cobalt alloy via electroforming. Adopting precise photolithography electroforming technology, they realize micron-level ultra-thin micro-structure forming without stamping stress and deliver excellent dimensional consistency. The contact points feature smooth burr-free edges with stable contact resistance and lasting elastic rebound, perfectly matching probe modules of various chip test sockets. Custom micro-pitch, multi-pin and special-shaped contacts are available with controllable thickness down to several microns. Resistant to plugging, unplugging and corrosion, they resist fatigue and deformation during long-term testing. Widely applied in aging and functional testing of semiconductor packaging, memory chips, computing chips and automotive chips, they eliminate drawbacks of stamped springs such as unstable contact, short service life and insufficient precision, greatly improving chip testing yield. They serve as core precision conductive components for high-end IC test sockets.

Product Features

Integral electroforming without stamping stress, free of warpage and internal stress failure, highly consistent batch dimensions
Mirror-smooth burr-free contacts without edge collapse, enabling ultra-fine pitch for tiny-pin chip testing
Integrated elastic structure with stable rebound, resisting fatigue fracture after millions of plug cycles
Custom ultra-thin, special-shaped and stepped complex contacts; customizable thickness, pitch and contact geometry
Optional gold/palladium plating for superior conductivity, anti-oxidation and chemical resistance, far longer service life than stamped springs

Product Performance

Dimensional Precision: Overall tolerance ±0.003mm, contact pitch tolerance ±1μm, compatible with ultra-fine pitch IC testing
Conductivity: Low and stable contact resistance; gold plating minimizes impedance fluctuation for distortion-free signal transmission
Mechanical Property: High elastic recovery rate, maintaining tight contact over ≥1,000,000 plug-unplug cycles without loosening or breakage
Environmental Stability: High temperature and oxidation resistance; elastic performance and precision remain stable under high-low temperature cycling
Material Performance: Tough nickel-cobalt alloy substrate with strong corrosion resistance, resisting oxidation and discoloration for cleanroom testing environments

Application Fields

High-end IC Test Sockets: Functional & aging test springs for BGA, QFP, CSP, FC-BGA chips
Memory Chip Testing: Precision conductive springs for DDR, UFS and Flash memory test sockets
AI Computing Chips: Probe test modules for GPU, computing processors and high-speed RF chips
Automotive Semiconductors: Aging test springs for automotive-grade power IC and vehicle main control chips
Consumer Electronic Chips: Precision test springs for cellphone main controllers, sensors and Bluetooth ICs
Semiconductor Wafer Testing: Mini conductive spring assemblies matched with micro-pitch probe cards