| CPC H01L 21/4821 (2013.01) [B23K 20/10 (2013.01); B23K 2101/40 (2018.08); H01L 2021/60007 (2013.01)] | 13 Claims | 

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               1. A semiconductor device comprising: 
            a clip, wherein the clip comprises a clip slot; and 
                a slug, wherein the slug comprises a groove on an underside of the slug that is encased by the top of the slug, 
                wherein the groove and the clip slot are at least partially overlapping to form a gas pathway tunnel on the underside of the slug to an outside side of the slug. 
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