Compliant Leads Double as Probes

摘要

When the industry started moving more seriously into chip-scale packaging, one notable innovation was the use of compliant leads. Whether TAB bonds, traces plated onto dielectric layers or some other implementation, they involve a spring-like lead going from the bond pads on the die to the next level, be that a solder ball or a package substrate. Now, at least two kinds of compliant leads exist that also can double as probe leads.