Patent ID: 6677666
Filing Date: 2004-01-13
Classification: H01L

Abstract:
A lead frame used for manufacturing semiconductor devices, said lead frame comprising:first and second half frame structure portions; and a plurality of bridge members for connecting said first and second half frame structure portions; wherein each of said first and second half frame structure portions comprises: first and second band shaped members disposed parallel to each other; a plurality of island portions for mounting semiconductor pellets thereon respectively, wherein said plurality of island portions are disposed at predetermined intervals between said first and second band shaped members, and wherein a first end portion of each of said island portions is connected to said first band shaped member; a coupling strip provided for each of said island portions, wherein said coupling strip is disposed between each of said island portions and said second band shaped member, wherein a first end portion of said coupling strip is connected to a second end portion of each of said island portions, and wherein a second end portion of said coupling strip is connected to said second band shaped member; and at least one electrode portion which is provided for each of said island portions and which is to be electrically coupled with a corresponding electrode of said semiconductor pellet mounted on each of said island portions, wherein said at least one electrode portion is disposed between each of said island portions and said second band shaped member, wherein a first end portion of said at least one electrode portion is connected to said second band shaped member, and wherein a second end portion of said at least one electrode portion is opposed to said second end portion of each of said island portions but is not connected to said second end portion of each of said island portions; and wherein said first and second half frame structure portions are disposed symmetrically such that said second band shaped members are located inside, and wherein said bridge members are connected to said second band shaped member of said first half frame structure portion and to said second band shaped member of said second half frame structure portion, thereby connecting said second band shaped members of said first and second half frame structure portions together.