Ball grid array package with an electromagnetic shield connected directly to a printed circuit board
First Claim
Patent Images
1. A ball grid array package comprising:
- a chip including a substrate with a bottom surface;
a plurality of solder bumps projecting outwardly from said bottom surface of said substrate; and
an electromagnetic shield including a housing that defines an inner space which receives said chip and said solder bumps therein, and a bottom opening for access into said inner space;
wherein said solder bumps project outwardly of said inner space through said bottom opening in said housing.
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Abstract
A ball grid array package includes a chip having a substrate with a bottom surface, a plurality of solder bumps projecting outwardly from the bottom surface of the substrate, and an electromagnetic shield including a housing that defines an inner space which receives the chip and the solder bumps therein, and a bottom opening for access into the inner space. The solder bumps project outwardly of the inner space through the bottom opening in the housing.
19 Citations
9 Claims
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1. A ball grid array package comprising:
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a chip including a substrate with a bottom surface;
a plurality of solder bumps projecting outwardly from said bottom surface of said substrate; and
an electromagnetic shield including a housing that defines an inner space which receives said chip and said solder bumps therein, and a bottom opening for access into said inner space;
wherein said solder bumps project outwardly of said inner space through said bottom opening in said housing. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An electronic device comprising:
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a printed circuit board;
a chip including a substrate with opposite top and bottom surfaces, and a semiconductor die mounted on said top surface of said substrate;
a plurality of solder bumps projecting outwardly from said bottom surface of said substrate and connected directly and electrically to said printed circuit board; and
an electromagnetic shield including a housing that defines an inner space which receives said chip and said solder bumps therein, and a bottom opening for access into said inner space, said housing having a bottom end that defines said bottom opening and that is connected directly to said printed circuit board;
wherein said solder bumps project outwardly of said inner space through said bottom opening in said housing. - View Dependent Claims (9)
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Specification