Flip chip mounting body, flip chip mounting method and flip...

Semiconductor device manufacturing: process – Packaging or treatment of packaged semiconductor – Assembly of plural semiconductive substrates each possessing...

Reexamination Certificate

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Details

C257SE21511, C438S118000

Reexamination Certificate

active

08071425

ABSTRACT:
The flip chip mounted body of the present invention includes: a circuit board (213) having a plurality of connection terminals (211); a semiconductor chip (206) having a plurality of electrode terminals (207) that are disposed opposing the connection terminals (211); and a porous sheet (205) having a box shape that is provided on an opposite side of a formation surface of the electrode terminal (207) of the semiconductor chip (206), is folded on an outer periphery of the semiconductor chip (206) on the formation surface side of the electrode terminal (207) and is in contact with the circuit board (213), wherein the connection terminal (211) of the circuit board (213) and the electrode terminal (207) of the semiconductor chip (206) are connected electrically via a solder layer (215), and the circuit board (213) and the semiconductor chip (206) are fixed by a resin (217). Thereby, the flip chip mounted body with excellent productivity and reliability that can mount the semiconductor chip on the circuit board, and a method and an apparatus for mounting the flip chip mounted body are provided.

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Sakamoto, I. et al., “Ultra fine pitch solder bump forming equipment compatible with lead-free solder”, Electronics Packing Technology, vol. 30, No. 12, 2004, pp. 34-35.

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