Semiconductor device manufacturing: process – Bonding of plural semiconductor substrates
Reexamination Certificate
2005-06-06
2009-10-13
Landau, Matthew C (Department: 2813)
Semiconductor device manufacturing: process
Bonding of plural semiconductor substrates
C438S458000
Reexamination Certificate
active
07601613
ABSTRACT:
In a first ion implantation step (a1), a delamination-intended ion implantation layer3is formed by implanting ions at a dosage less than a critical dosage from the insulating film2side of a bond wafer1. In an additional function layer deposition step (b2), an additional function layer4is deposited on the insulating film2of the bond wafer1. In a second ion implantation step (c1), by implanting ions at a dosage, the delamination-intended ion implantation layer3is matured into a delamination ion implantation layer3′. Thereby, the delamination ion implantation layer is formed by two steps of ion implantation having the additional function layer deposition step therebetween, and therefore non-uniformity of the additional function layer does not influence uniformity of a film thickness of a bonded semiconductor thin layer.
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Hall Jessica
Landau Matthew C
Oliff & Berridg,e PLC
Shin-Etsu Handotai & Co., Ltd.
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