Low Temperature Flex-on-Flex Assembly Using Polyvinylidene Fluoride Nanofiber Incorporated Sn58Bi Solder Anisotropic Conductive Films and Vertical Ultrasonic Bonding

<table>The SEM images of solder ball contact joints of (a) conventional Ni ACF joint, (b) conventional Sn58Bi solder ACF joint, and (c) PVDF nanofiber/Sn58Bi solder ACF joint.</table>

Journal of Nanomaterials

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Figure 16

Figure 16: Low Temperature Flex-on-Flex Assembly Using Polyvinylidene Fluoride Nanofiber Incorporated Sn58Bi Solder Anisotropic Conductive Films and Vertical Ultrasonic Bonding 

Figure 16 | Low Temperature Flex-on-Flex Assembly Using Polyvinylidene Fluoride Nanofiber Incorporated Sn58Bi Solder Anisotropic Conductive Films and Vertical Ultrasonic Bonding 