| 摘要 |
A semiconductor package includes a substrate panel, a chip, an upper package encapsulant, and a lower package encapsulant. The chip is mounted to the substrate panel and below a hole in the substrate panel. A number of wires interconnect the leads on the chip with the leads on the substrate panel. The upper package encapsulant is formed on the upper side of the substrate panel by filling molten liquid plastic material into an upper mold placed on the upper side of the substrate panel. The lower package encapsulant is formed on the underside of the substrate panel by filling molten liquid plastic material into a lower mold placed on the underside of the substrate panel.
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