A system and method for conductive pillars is provided. An embodiment comprises a conductive pillar having trenches located around its outer edge. The trenches are used to channel conductive material such as solder when a conductive bump is formed onto the conductive pillar. The conductive pillar may then be electrically connected to another contact through the conductive material.

Claims as granted

20 claims

Classifications

4 codes

IPC · International Patent Classification

Section H — Electricity

H01L23/485
H01L21/768

USPC · US Patent Classification

257/737438/613

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Pendency

3.1 y

1,131 days filing → grant

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1 RCE

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Examiner

Walter H Swanson

art unit 2823 · TC 2800

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