| 摘要 |
A semiconductor lead frame, a semiconductor package, and a method for fabricating semiconductor packages, are provided. The lead frame includes side rails and multiple patterns of lead fingers. The lead frame also includes die mounting paddles associated with the patterns of lead fingers, and support members that attach the mounting paddles to the side rails. The mounting paddles include stiffening members such as indentations, ridges or corrugations formed in a die mounting surface thereof. The stiffening members prevent bowing of the mounting paddles, provide an increased surface area for bonding dice to the mounting paddles, and allow the mounting paddles to flex to accommodate thermal stresses. The support members for the mounting paddles can also have a stiffening cross sectional configuration to help maintain a planar orientation and location of the mounting paddles. The semiconductor package includes a semiconductor die bonded to a rigidified mounting paddle, and a plastic body encapsulating the die and mounting paddle.
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