Semiconductor device and lead frame therefor

Semiconductor device manufacturing: process – Packaging or treatment of packaged semiconductor – Metallic housing or support

Reexamination Certificate

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Details

C438S110000, C438S113000, C438S118000

Reexamination Certificate

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06844219

ABSTRACT:
A semiconductor device which can improve the connection reliability of solder bumps and productivity in manufacturing. Insulating tape having wiring patterns on its surface is bonded to a lead frame. Semiconductor elements are loaded and circuit formed surfaces and sides of the semiconductor elements are sealed with sealing resin. After arrangements of individual semiconductor devices are formed, the lead frame is separated into individual metal plates to form individual semiconductor devices. Such simultaneous production of a plurality of semiconductor devices enhances productivity, and improves flatness of the insulating tape, whereby the connection reliability of solder bumps is improved.

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patent: 5216278 (1993-06-01), Lin et al.
patent: 5440169 (1995-08-01), Tomita et al.
patent: 5448105 (1995-09-01), Katoh et al.
patent: 5656550 (1997-08-01), Tsuji et al.
patent: 5661086 (1997-08-01), Nakashima et al.
patent: 5663530 (1997-09-01), Schueller et al.
patent: 6-504408 (1994-05-01), None
patent: 6-224259 (1994-08-01), None
patent: 6-302604 (1994-10-01), None
patent: 8-88293 (1996-02-01), None

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