Active solid-state devices (e.g. – transistors – solid-state diode – Combined with electrical contact or lead – Of specified configuration
Reexamination Certificate
2008-01-01
2008-01-01
Parekh, Nitin (Department: 2811)
Active solid-state devices (e.g., transistors, solid-state diode
Combined with electrical contact or lead
Of specified configuration
C257S786000, C257S779000, C257S780000, C257SE23020
Reexamination Certificate
active
07315085
ABSTRACT:
A ball grid array package includes a substrate, a chip, a plurality of pads, a solder mask, a plurality of partitioning walls, and a plurality of solder balls. The substrate has an upper surface and a lower surface opposite to the upper surface. The chip is disposed on the upper surface of the substrate. The pads are disposed on the lower surface of the substrate and electrically connected to the chip. The solder mask is disposed on the lower surface of the substrate. The partitioning walls are disposed on the solder mask and between the adjacent pads. The solder balls are respectively disposed on the pads.
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patent: 5969426 (1999-10-01), Baba et al.
patent: 7071569 (2006-07-01), Ho et al.
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patent: 2004/0041393 (2004-03-01), Lee
patent: 2004/0141298 (2004-07-01), Harvey
A. Marquez, Esq. Juan Carlos
Advanced Semiconductor Engineering Inc.
Fisher Esq. Stanley P.
Parekh Nitin
Reed Smith LLP
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