Contact structure having a compliant bump and a test pad
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United States of America Patent
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Nov 16, 2010
Issued Date -
N/A
app pub date -
Jun 13, 2007
filing date -
Jul 28, 2006
priority date (Note) -
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Abstract
A contact structure including a contact pad, a polymer bump and a conductive layer is provided in the present invention. The contact pad is disposed on a substrate. The polymer bump is disposed on the contact pad. The conductive layer covers the polymer bump and extends to the outside of the polymer bump. The portion of the conductive layer extending to the outside of the polymer bump serves as a test pad. The invention further discloses a manufacturing method of a contact structure. First, a substrate is provided having a contact pad already formed thereon. Then, a polymer bump is formed on the contact pad and a conductive layer is formed on the polymer bump. The conductive layer covers the polymer bump and extends to the outside of the polymer bump. The portion of the conductive layer extending to the outside of the polymer bump serves as a test pad.
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