PRINTED CIRCUIT BOARD HAVING A BUMP AND A METHOD OF MANUFACTURING THE SAME
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United States of America Patent
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N/A
Issued Date -
Mar 3, 2011
app pub date -
Aug 27, 2010
filing date -
Aug 31, 2009
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
Disclosed herein is a printed circuit board having a bump and a method of manufacturing the same. The printed circuit board having a bump includes an insulating layer into which an inner circuit layer is impregnated; a protective layer that is formed under the insulating layer and has an opening exposing a pad unit of the inner circuit layer; and a bump that is integrally formed with the pad unit and is protruded from the inner side of the protective layer to the outside of the protective layer through the opening. The bump is integrally formed with the pad unit, thereby improving bonding strength between the bump and the printed circuit board, and the surface area of the bump is formed to be wide, thereby improving bonding strength between a solder ball and the printed circuit board.
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