Impinj Enduro™ Technology, commonly called Enduro is Impinj’s patented new high-performance attach technology to connect a Monza IC to an inlay antenna. Enduro replaces commonly used bumps with large, flat metal pads that are lithographically defined and form the connection between the IC and the antenna. The flat metal pads are formed on a thick repassivation layer overlaying the IC, and each covers nearly 50% of the IC area. When attached to an inlay, an Enduro IC offers a rugged connection with low resistivity, low RF parasitics, tight manufacturing tolerances, and a mechanically tough connection.
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