Patent ID: 9589929
Date: 2017-03-07
CPC Classifications: H01L

Claim:
1. A method comprising: attaching a gate and a source of a first die to a lead frame, said first die comprising said gate and said source that are located on a first surface of said first die and a drain that is located on a second surface of said first die that is opposite said first surface; coupling a source of a second die to said drain of said first die, said second die comprising a gate and a drain that are located on a first surface of said second die and said source that is located on a second surface of said second die that is opposite said first surface; attaching a clip to said lead frame and said drain of said second die, said clip comprising a first platform, a second platform, and a sloped portion located between said first platform and said second platform, said first platform is located above said second platform; performing a molding process comprising covering said first die, second die, and clip with a molding material, said molding process comprises using a flexible film so a portion of an upper surface of said clip is free of said molding material, said molding process further comprises using a molding tool comprising a mold surface capable of contacting said upper surface of said clip; and preventing said portion of said upper surface of said clip from being plated during a plating process, said portion of said upper surface of said clip is exposed in final package.