Manufacturing method of a semiconductor device

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

Reexamination Certificate

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C438S015000, C438S025000, C438S026000, C438S051000, C438S055000, C438S064000, C438S112000, C438S124000, C438S125000, C438S126000, C438S127000, C257S667000, C257S787000

Reexamination Certificate

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07371606

ABSTRACT:
The yield of a sealing process for a semiconductor device which adopts a flip-chip mounting method is to be improved. In a molding process wherein plural semiconductor chip ICs mounted on a parts mounting surface of a substrate matrix through bump electrodes are to be sealed all together with a sealing resin in a reduced state of the internal pressure of a cavity of a molding apparatus, a clamping pressure at the time of clamping the substrate matrix by both a lower die and an upper die of a molding die is set at a relatively low pressure in an initial stage of injection of the sealing resin and is changed to a relatively high pressure when the sealing resin has covered the semiconductor chip ICs located in a final stage in the resin injecting direction.

REFERENCES:
patent: 5817545 (1998-10-01), Wang et al.
patent: 5998243 (1999-12-01), Odashima et al.
patent: 6459159 (2002-10-01), Miyagawa et al.
patent: 6767676 (2004-07-01), Nagao
patent: 6988882 (2006-01-01), Boyaud et al.
patent: 2002/0019072 (2002-02-01), Kobayashi et al.
patent: 2004/0175866 (2004-09-01), Woerz et al.
patent: 11-121488 (1999-04-01), None
patent: 2001-135658 (2001-05-01), None
Chinese Official Action for Application No. 200410104607.0, dated Oct. 12, 2007.

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