Patent ID: 9583420
Date: 2017-02-28
CPC Classifications: H01L

Claim:
1. A semiconductor device comprising: a first semiconductor die encapsulated by an encapsulant; a through via extending through the encapsulant and laterally separated from the first semiconductor die; a first reflowable conductive material in electrical connection with the through via; a protective layer at least partially over the first reflowable conductive material and the first semiconductor die, wherein the protective layer has an opening that exposes the first reflowable conductive material; and a second reflowable conductive material extending through the opening and in physical contact with the first reflowable conductive material, the first reflowable conductive material and the second reflowable conductive material forming an hourglass shape having a narrow middle region interposed between wide end regions, wherein an upper surface of the protective layer contacts the first reflowable conductive material in the narrow middle region.