Dummy Components are the exact mechanical equivalent of fully functional, electronically active components. Dummy SMD components are available in all popular IC fine pitch packages including PoP, TMV, WLP, BGA, Flip Chip, CSP, QFP, LQFP, TSOP, TSSOP, SSOP, PLCC and also resistors and capacitors.
Dummies save money! In cases where only mechanical characteristics are required, dummy components can be used instead of live, functioning components. Since there are no expensive die inside the package, the cost for performing mechanical testing is significantly lower.