Semiconductor device manufacturing: process – Making field effect device having pair of active regions... – On insulating substrate or layer
Reexamination Certificate
2006-02-07
2006-02-07
Cao, Phat X. (Department: 2814)
Semiconductor device manufacturing: process
Making field effect device having pair of active regions...
On insulating substrate or layer
C438S153000
Reexamination Certificate
active
06995049
ABSTRACT:
In a method for forming a silicon-on-insulator FET having a contact that provides a fixed potential to a substrate, the substrate-biasing between the SOI transistor and the silicon substrate is performed via a plug. As a result, a contact hole for the substrate-biasing does not need to pass through the insulating layer, the silicon layer, and the interlayer insulating layer of the structure. Therefore, the interlayer insulating layer can be made to have shallow depth. Ions can thus be implanted to the surface of the substrate via the contact hole for substrate-biasing. The contact hole for substrate-biasing can be formed without causing an opening fault.
REFERENCES:
patent: 5914510 (1999-06-01), Hieda
patent: 6060738 (2000-05-01), Hidaka et al.
patent: 6133610 (2000-10-01), Bolam et al.
patent: 6632710 (2003-10-01), Takahashi
Cao Phat X.
Doan Theresa T.
Oki Electric Industry Co. Ltd.
Volentine Francos & Whitt PLLC
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