Semiconductor device having circuit pattern along outer peripher

Details Semiconductor device having circuit pattern along outer peripher Semiconductor device having circuit pattern along outer peripher

1996-11-07

1998-04-07

Thomas, Tom

Active solid-state devices (e.g., transistors, solid-state diode

Lead frame

With bumps on ends of lead fingers to connect to semiconductor

257683, 257689, 257692, 257693, 257696, 257698, 257700, 257709, 257737, 257738, 257787, 361767, 438125, H01L 2312, H01L 2331

Patent

active

057367809

ABSTRACT:
A flexible circuit board includes an insulating flexible film having a lower surface provided with first wiring patterns having first inner ends, and second outer ends extending to a peripheral area of the insulating flexible film. A semiconductor element is electrically connected to and supported by the first inner ends of the first patterns. A connecting circuit board includes an insulating base substrate having an upper surface provided with second wiring patterns having first inner ends, and second outer ends extending to a peripheral area of the base substrate, and a lower surface provided with external connecting terminals electrically connected to the first inner ends of the second wiring patterns by vias. A resin fills a space between the lower surface of the flexible circuit board and the upper surface of the connecting circuit board so that the semiconductor element is hermetically sealed with the resin. The second outer ends of the first and second patterns are electrically connected to each other, so that the semiconductor element is electrically connected to the external connecting terminals.

REFERENCES:
patent: 4849857 (1989-07-01), Butt et al.
patent: 4855867 (1989-08-01), Gazdik et al.
patent: 5349501 (1994-09-01), Kawakami
patent: 5357400 (1994-10-01), Takekawa
patent: 5365107 (1994-11-01), Kuraishi et al.
patent: 5438224 (1995-08-01), Papageorge et al.
patent: 5448106 (1995-09-01), Fujitsu
patent: 5450283 (1995-09-01), Lin et al.
patent: 5506756 (1996-04-01), Haley
patent: 5608262 (1997-03-01), Degani et al.
patent: 5672908 (1997-09-01), Fujitsu

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