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TPS53659: thermal pad面積區域過於大範圍,造成ground pin爬錫率變低

Part Number: TPS53659
Other Parts Discussed in Thread: TPS51220A

TPS53659 & TPS51220A提問 :

在SMT的製程中,因為IC本身 layout 的 thermal pad 面積區域過於大範圍,把大部分的錫都帶走造成周圍其它ground pin的爬錫率變低。

請問這種有沒有被定義『爬錫率』或『Non-Wetting & De-Wetting』的問題?