Litron Patent & Trademark Office
Leadframe and the method to fabricate thereof
The present invention discloses a leadframe in which two conductive pillars with high aspect ratio and the corresponding two leads of the leadframe forms a 3D space for accommodating at least one device. A first lead and a second lead are spaced apart from each other. A first conductive pillar is formed on the first lead by disposing a first via on the first lead, wherein at least one first conductive material is filled inside the first via to form the first conductive pillar. A second conductive pillar is formed on the second lead by disposing a second via on the second lead, wherein at least one second conductive material is filled inside the second via to form the second conductive pillar. The first lead, the second lead, the first conductive pillar, and the second conductive pillar form a 3D space for accommodating at least one device, wherein the at least one device is electrically connected to the first conductive pillar and the second conductive pillar.
CYNTEC CO., LTD.
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Chia Pei Jih-Hsu Lang-Yi You Chang
Chou Yeh Chiang Tseng