Stand off Stitch, Hi-Rel Wire Bonds, Stitch-Bump, Security Bumps, Improved Wire Bond Reliability Technical Paper

8000 Wire Bonder

Stand-Off Stitch

simple stand-off stich wire

Simple example of Stand-Off Stitch wire - stitch bond is placed on a previously placed ball bump.

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Stand-Off Stitch Auxiliary Wires for Improved Wire Bond Reliability

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What Does Improved Reliability Mean?

  1. Higher destructive pull test values after 125C burn

  2. Failure modes during destructive pull tests proven in the bulk properties of the wire and not the bond interface 

  3. Improvement in wire bond reliability when wire bonding gold bonds on aluminum pads

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