JAJSQ40A July 2023 – December 2023 TXV0108-Q1
PRODUCTION DATA
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Wettable flanks help improve side wetting after soldering which makes QFN packages easier to inspect with automatic optical inspection (AOI). A wettable flank can be dimpled or step-cut to provide additional surface area for solder adhesion which assists in reliably creating a side fillet as shown in the figure. Please see the mechanical drawing for additional details.