What Is Fingerstock?
Fingerstock is a type of hard gasket used primarily for electromagnetic interference (EMI) shielding and grounding. The primary material used in fingerstock is beryllium copper, which is chosen for its resistance to metal fatigue and exceptional elasticity. Additionally, the surface of fingerstock is often plated with gold or tin, which enhances its corrosion resistance. The main purpose of using fingerstock is for providing electromagnetic shielding in conjunction with a grounding or earthing surface.
The characteristics of fingerstock vary depending on the installation method. As a product, it is available in various types, including clip-on, slot mount, and solder and weld types, each requiring different handling methods.