초록 ▼

A heat dissipation ball grid array package includes the following elements. A plurality of first thermal ball pads is formed on the underside of a substrate in the area covered by chip. A plurality of second thermal ball pads or a heat dissipation ring is formed outside the first thermal ball pads.

A heat dissipation ball grid array package includes the following elements. A plurality of first thermal ball pads is formed on the underside of a substrate in the area covered by chip. A plurality of second thermal ball pads or a heat dissipation ring is formed outside the first thermal ball pads. A plurality of signal ball pads is formed outside the second thermal ball pads or the heat dissipation ring. The second thermal ball pads or heat dissipation ring is connected to the first thermal ball pads by conductive trace lines. A plurality of first thermal balls is attached to the respective first thermal ball pads. The signal balls are attached to the respective signal ball pads. The first thermal balls and the signal balls are in contact with corresponding contact points on a printed circuit board. A plurality of second thermal balls is attached to the respective second thermal ball pads or the surface of the heat dissipation ring.

대표청구항 ▼

A heat dissipation ball grid array package includes the following elements. A plurality of first thermal ball pads is formed on the underside of a substrate in the area covered by chip. A plurality of second thermal ball pads or a heat dissipation ring is formed outside the first thermal ball pads.

A heat dissipation ball grid array package includes the following elements. A plurality of first thermal ball pads is formed on the underside of a substrate in the area covered by chip. A plurality of second thermal ball pads or a heat dissipation ring is formed outside the first thermal ball pads. A plurality of signal ball pads is formed outside the second thermal ball pads or the heat dissipation ring. The second thermal ball pads or heat dissipation ring is connected to the first thermal ball pads by conductive trace lines. A plurality of first thermal balls is attached to the respective first thermal ball pads. The signal balls are attached to the respective signal ball pads. The first thermal balls and the signal balls are in contact with corresponding contact points on a printed circuit board. A plurality of second thermal balls is attached to the respective second thermal ball pads or the surface of the heat dissipation ring. i et al.; US-6381059, 20020400, Carlson, 359/244