Semiconductor device manufacturing: process – Packaging or treatment of packaged semiconductor – Making plural separate devices
Reexamination Certificate
2011-08-23
2011-08-23
Wilczewski, Mary (Department: 2822)
Semiconductor device manufacturing: process
Packaging or treatment of packaged semiconductor
Making plural separate devices
C438S464000, C257SE21519, C257SE21599
Reexamination Certificate
active
08003441
ABSTRACT:
A manufacturing method of a semiconductor device according to the present invention comprises:laminating a surface protective sheet to a circuit surface side of a wafer formed with grooves which divide each circuit wherein an adhesive film is adhered on the circuit surface of the wafer;reducing the thickness of the wafer and finally dividing the wafer into individual chips by grinding a back face of the wafer;picking up individual chips together with the adhesive film;die-bonding said individual chip to predetermined position of a chip mounting substrate via said adhesive film;fixing the chip to the chip mounting substrate by heating the die-bonded chip having the adhesive film; andapplying a static pressure larger than an ambient pressure by 0.05 MPa or more to a stacked body including the adhesive film one or more times, at any point between adhering the wafer to the adhesive film and fixing the chip to the chip mounting substrate.
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Maeda Jun
Tanaka Keiko
Yamazaki Osamu
Cahn & Samuels LLP
Lintec Corporation
Wilczewski Mary
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